Notice2025-16181

Self-Regulatory Organizations; Miami International Securities Exchange, LLC; Notice of Filing and Immediate Effectiveness of Proposed Change To Amend Exchange Rule 307, Position Limits, and Exchange Rule 309, Exercise Limits To Allow the Exchange To Increase the Position and Exercise Limits for Grayscale Bitcoin Trust ETF, Grayscale Bitcoin Mini Trust ETF, and the Bitwise Bitcoin ETF

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
August 25, 2025

Issuing agencies

Securities and Exchange Commission

Full Text

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<title>Federal Register, Volume 90 Issue 162 (Monday, August 25, 2025)</title>
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[Federal Register Volume 90, Number 162 (Monday, August 25, 2025)]
[Notices]
[Pages 41426-41431]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-16181]



[[Page 41426]]

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SECURITIES AND EXCHANGE COMMISSION

[Release No. 34-103749; File No. SR-MIAX-2025-38]


Self-Regulatory Organizations; Miami International Securities 
Exchange, LLC; Notice of Filing and Immediate Effectiveness of Proposed 
Change To Amend Exchange Rule 307, Position Limits, and Exchange Rule 
309, Exercise Limits To Allow the Exchange To Increase the Position and 
Exercise Limits for Grayscale Bitcoin Trust ETF, Grayscale Bitcoin Mini 
Trust ETF, and the Bitwise Bitcoin ETF

August 20, 2025.
    Pursuant to Section 19(b)(1) \1\ of the Securities Exchange Act of 
1934 (``Act'') \2\ and Rule 19b-4 thereunder,\3\ notice is hereby given 
that, on August 14, 2025, Miami International Securities Exchange, LLC 
(``MIAX'' or the ``Exchange'') filed with the Securities and Exchange 
Commission (the ``Commission'') the proposed rule change as described 
in Items I and II below, which Items have been prepared by the self-
regulatory organization. The Commission is publishing this notice to 
solicit comments on the proposed rule change from interested persons.
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    \1\ 15 U.S.C. 78s(b)(1).
    \2\ 15 U.S.C. 78a.
    \3\ 17 CFR 240.19b-4.
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I. Self-Regulatory Organization's Statement of the Terms of Substance 
of the Proposed Rule Change

    The Exchange proposes to amend Exchange Rule 307, Position Limits, 
and Exchange Rule 309, Exercise Limits to increase the position and 
exercise limits for for [sic] Grayscale Bitcoin Trust ETF (``GBTC''), 
Grayscale Bitcoin Mini Trust ETF (``BTC''), and the Bitwise Bitcoin ETF 
(``BITB'') (collectively, the ``Bitcoin ETFs'').
    The text of the proposed rule change is available on the Exchange's 
website at <a href="https://www.miaxglobal.com/markets/us-options/miax-options/rule-filings">https://www.miaxglobal.com/markets/us-options/miax-options/rule-filings</a>, and at MIAX's principal office.

II. Self-Regulatory Organization's Statement of the Purpose of, and 
Statutory Basis for, the Proposed Rule Change

    In its filing with the Commission, the self-regulatory organization 
included statements concerning the purpose of, and basis for, the 
proposed rule change and discussed any comments it received on the 
proposed rule change. The text of those statements may be examined at 
the places specified in Item IV below. The Exchange has prepared 
summaries, set forth in sections A, B, and C below, of the most 
significant parts of such statements.

A. Self-Regulatory Organization's Statement of the Purpose of, and the 
Statutory Basis for, the Proposed Rule Change

1. Purpose
    The Exchange proposes to amend Exchange Rule 307, Position Limits, 
and Exchange Rule 309, Exercise Limits,\4\ to permit the Bitcoin ETFs 
to increase the position and exercise limits for options on each 
Bitcoin ETF from 25,000 contracts by removing each Bitcoin ETF from 
Interpretation and Policy .01 to Exchange Rule 307 and Interpretation 
and Policy .01 to Exchange Rule 309. This is a competitive filing based 
on similar proposals submitted by NYSE Arca Inc. (``NYSE Arca''), Cboe 
Exchange, Inc. (``Cboe''), and Nasdaq ISE, LLC (``ISE'') and approved 
by the Securities and Exchange Commission (``Commission'').\5\
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    \4\ The Exchange notes that all the rules of Chapter III of 
MIAX, including Rules 307 and 309, are incorporated by reference 
into the rulebooks of MIAX Emerald, LLC, MIAX Pearl, LLC and MIAX 
Sapphire, LLC.
    \5\ See Securities Exchange Act Release Nos. 103567 (July 29, 
2025) 90 FR 36253 (August 1, 2025) (SR-NYSEArca-2025-07) (Self-
Regulatory Organizations; NYSE Arca, Inc.; Order Approving a 
Proposed Rule Change, as Modified by Amendment No. 3, To Amend Rules 
Regarding Position and Exercise Limits for Options on the Grayscale 
Bitcoin Trust (``GBTC'') and To Permit Flexible Exchange Options on 
GBTC); 103587 (July 29, 2025) 90 FR 36238 (August 1, 2025) (SR-
NYSEArca-2025-10) ((collectively, the ``NYSE Arca Approval 
Orders''); 103663 (Augusts 8, 2025) (SR-CBOE-2025-056) (Self-
Regulatory Organizations; Cboe Exchange, Inc.; Notice of Filing and 
Immediate Effectiveness of a Proposed Rule Change to Amend its Rules 
Regarding the Position and Exercise Limits for Options on the 
iShares Bitcoin Trust ETF, Grayscale Bitcoin Trust ETF, Grayscale 
Bitcoin Mini Trust BTC, and the Bitwise Bitcoin ETF) (``Cboe 
Approval Order''); and 103643 (August 5, 2025) (SR-ISE-2025-22) 
(Self-Regulatory Organizations; Nasdaq ISE, LLC; Notice of Filing 
and Immediate Effectiveness of Proposed Rule Change to Amend FLEX, 
Position and Exercise Limit Rules for the Grayscale Bitcoin Mini 
Trust ETF, the Bitwise Bitcoin ETF, and the Grayscale Bitcoin Trust 
ETF) (``ISE Approval Order'').
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    Each Bitcoin ETF is an exchange-traded fund (``ETF'') that holds 
Bitcoin and is listed on a national equities exchange.\6\ In November 
2024, the Exchange received approval to list options on GBTC, BTC, and 
BITB options.\7\ The position and exercise limits for each Bitcoin ETF 
options are 25,000 contracts as stated in Interpretation and Policy .01 
to Exchange Rule 307, Position Limits, and Interpretation and Policy 
.01 to Exchange Rule 309, Exercise Limits the lowest limit available in 
options.\8\
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    \6\ NYSE Arca received approval to list and trade Bitcoin-Based 
Commodity-Based Trust Shares in GBTC, BTC, and BITB pursuant to NYSE 
Arca Rule 8.201-E(c)(1). See Securities Exchange Act Release Nos. 
99306 (January 10, 2024), 89 FR 3008 (January 17, 2024) (Order 
Granting Accelerated Approval of Proposed Rule Changes, as Modified 
by Amendments Thereto, to list and trade options on, among other 
ETFs, GBTC) (SR-NYSEARCA-2021-90); 100610 (July 26, 2024) (order 
approving listing and trading of Commodity-Based Trust Shares of 
BTC, among other ETFs), 89 FR 62821 (August 1, 2024) (SR NYSEARCA-
2023-45); and 99306 (January 10, 2024), 89 FR 3008 (January 17, 
2024) (order approving listing and trading of Commodity-Based Trust 
Shares of BITB, among other ETFs) (SR-NYSEARCA-2021-90).
    \7\ See Securities Exchange Act Release No. 101716 (November 21, 
2024), 89 FR 94856 (November 29, 2024) (SR-MIAX-2024-42) (Self-
Regulatory Organizations; MIAX Exchange LLC; Notice of Filing and 
Immediate Effectiveness of a Proposed Rule Change To Amend Exchange 
Rule 402, Criteria for Underlying Securities, Exchange Rule 307, 
Position Limits, and Exchange Rule 309, Exercise Limits To Allow the 
Exchange To List and Trade Options on the Grayscale Bitcoin Trust, 
the Grayscale Bitcoin Mini Trust, and the Bitwise Bitcoin 
ETF)(``Bitcoin ETF Options Notice'').
    \8\ See Interpretation and Policy .01 to Exchange Rule 307 and 
Interpretation and Policy .01 to Exchange Rule 309.
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    Per the Commission ``rules regarding position and exercise limits 
are intended to prevent the establishment of options positions that can 
be used or might create incentives to manipulate or disrupt the 
underlying market so as to benefit the options positions.'' \9\ For 
this reason, the Commission requires that ``position and exercise 
limits must be sufficient to prevent investors from disrupting the 
market for the underlying security by acquiring and exercising a number 
of options contracts disproportionate to the deliverable supply and 
average trading volume of the underlying security.'' \10\ Based on its 
review of the data and analysis provided by the Exchange, the 
Commission concluded that the 25,000 contract position limit for the 
Bitcoin ETF Options satisfied these objectives.\11\
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    \9\ See Securities Exchange Act Release No. 101128 (September 
20, 2024), 89 FR 78942, 78946 (September 26, 2024) (SR-ISE-2024-03) 
(Notice of Filing of Amendment Nos. 4 and 5 and Order Granting 
Accelerated Approval of a Proposed Rule Change, as Modified by 
Amendment Nos. 1, 4, and 5, To Permit the Listing and Trading of 
Options on the iShares Bitcoin Trust) (``IBIT Options Approval 
Order'').
    \10\ See id.
    \11\ See id; Securities Exchange Act Release Nos. 101386 
(October 18, 2024), 89 FR 84960 (October 24, 2024) (SR-NYSEAMER-
2024-49) (the ``GBTC, BTC, and BITB Options Approval Order'').
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    While the Exchange proposed an aggregated 25,000 contract position 
limit for each Bitcoin ETF option in its rule filings to list and trade 
these options, it nonetheless believed that evidence existed to support 
a much higher position limit. Specifically, the Commission has 
considered and reviewed the Exchange's analysis and NYSE Arca's 
analysis as it was

[[Page 41427]]

presented by the Exchange in the Bitcoin ETF Options Notice that the 
exercisable risk associated with a position limit of 25,000 contracts 
represented only 0.9% of the outstanding shares of GBTC; 0.7% of the 
outstanding shares of BTC; and 3.6% of the outstanding shares of 
BITB.\12\ The Commission also has considered and reviewed the 
Exchange's statement in its Bitcoin ETF Options Notice that with a 
position limit of 25,000 contracts on the same side of the market for 
each Bitcoin ETF option: (1) with 284,570,100 shares of GBTC 
outstanding, 114 market participants would have to simultaneously 
exercise their positions to place GBTC under stress; (2) with 
366,950,100 shares of BTC outstanding, 147 market participants would 
have to simultaneously exercise their positions to place BTC under 
stress; and (3) with 68,690,000 shares of BITB outstanding, 27 market 
participants would have to simultaneously exercise their positions to 
place BITB under stress.\13\ Based on the Commission's review of this 
information and analysis, the Commission concluded that the proposed 
position and exercise limits of 25,000 contracts for each of GBTC, BTC, 
and BITB options were designed to prevent investors from disrupting the 
market for the underlying security by acquiring and exercising a number 
of options contracts disproportionate to the deliverable supply and 
average trading volume of the underlying security, and to prevent the 
establishment of options positions that can be used or might create 
incentives to manipulate or disrupt the underlying market so as to 
benefit the options position.\14\
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    \12\ See GBTC, BTC, and BITB Options Approval Order, at 84970 
(data as of August 30, 2024).
    \13\ See GBTC, BTC, and BITB Options Approval Order, at 84971 
(data as of August 30, 2024).
    \14\ See IBIT Options Approval Order, at 78946; and GBTC, BTC, 
and BITB Options Approval Order, at 84971.
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    Each Bitcoin ETF option would qualify for a 250,000 contract 
position limit pursuant to the criteria in Exchange Rule 307(d)(5), 
which requires that, for the most recent six-month period, trading 
volume for the underlying security be at least 100 million shares.\15\ 
As of November 25, 2024, the market capitalization and average daily 
volume (``ADV''), for the preceding three months,\16\ for each Bitcoin 
ETF was:
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    \15\ Exchange Rule 307, Position Limits, provides at 
subparagraph (d)(5) that to be eligible for the 250,000 contract 
limit, either the most recent six (6) month trading volume of the 
underlying security must have totaled at least 100 million shares or 
the most recent six (6) month trading volume of the underlying 
security must have totaled at least seventy-five (75) million shares 
and the underlying security must have at least 300 million shares 
currently outstanding.
    \16\ The market capitalization for each Bitcoin ETF was 
determined by multiplying a settlement price ($75.42--GBTC, $42.16--
BTC, $51.70--BITB) by the number of shares outstanding (GBTC--
273,950,100, BTC--82,939,964, BITB--79,950,100). GBTC, BTC, and BITB 
data acquired from FactSet.

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                                                                                                Three-month ADV
                            Bitcoin ETF                               Market capitalization        (shares)
----------------------------------------------------------------------------------------------------------------
GBTC..............................................................           $20,661,316,542           3,829,597
BTC...............................................................             3,496,748,882           2,036,369
BITB..............................................................             4,095,157,000           2,480,478
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    Therefore, each Bitcoin ETF is well-above the requisite 100,000,000 
shares necessary to qualify for the 250,000,000 contract position and 
exercise limit. Also, as of November 25, 2024, there are 19,787,762 
bitcoins in circulation.\17\ At a price of $94,830,\18\ that equates to 
a market capitalization of greater than $1.876 trillion US. If a 
position limit of 250,000 contracts were considered, the exercisable 
risk would represent 9.13%.\19\ 30.14%,\20\ and 31.27% \21\ of GBTC, 
BTC, and BITB shares outstanding, respectively. Given each Bitcoin 
ETF's liquidity, the current 25,000 position limit is extremely 
conservative.
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    \17\ See <a href="https://www.coingecko.com/en/coins/bitcoin">https://www.coingecko.com/en/coins/bitcoin</a>.
    \18\ This is the approximate price of bitcoin from 4:00 p.m. ET 
on November 25, 2024.
    \19\ This percentage is arrived at with this equation: (250,000 
contract limit * 100 shares per option/273,950.100 shares 
outstanding).
    \20\ This percentage is arrived at with this equation: (250,000 
contract limit * 100 shares per option/82,939,964 BTC shares 
outstanding).
    \21\ This percentage is arrived at with this equation: (250,000 
contract limit * 100 shares per option/79,950,100 BITB shares 
outstanding).
    \22\ See <a href="https://www.coingecko.com/en/coins/bitcoin">https://www.coingecko.com/en/coins/bitcoin</a>.
    \23\ This is the approximate price of Bitcoin from 4:00 p.m. ET 
on November 25, 2024.
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    Position limits, and exercise limits, are designed to limit the 
number of options contracts traded on the exchange in an underlying 
security that an investor, acting alone or in concert with others 
directly or indirectly, may control. These limits, which are described 
in Exchange Rules 307 and 309, are intended to address potential 
manipulative schemes and adverse market impacts surrounding the use of 
options, such as disrupting the market in the security underlying the 
options. Position and exercise limits must balance concerns regarding 
mitigating potential manipulation and the cost of inhibiting potential 
hedging activity that could be used for legitimate economic purposes.
    To achieve this balance, the Exchange proposes to remove each 
Bitcoin ETF from the table of position limits in Interpretation and 
Policy .01 to Exchange Rule 307 as well as the table of exercise limits 
in Interpretation and Policy .01 to Exchange Rule 309 so that options 
on each Bitcoin ETF may trade similar to all other options for which 
the Exchange has not filed to otherwise increase the position limits to 
levels outside of the limits of Exchange Rule 307(d). As a result of 
removing each Bitcoin ETF from the aforementioned tables, it would 
increase the position and exercise limits for options on each Bitcoin 
ETF from 25,000 to 250,000 contracts based on the parameters of 
Exchange Rule 307(d). By removing each Bitcoin ETF from the 
aforementioned tables, each Bitcoin ETF would be subject to subsequent 
six (6) month reviews to determine future position and exercise limits 
similar to all other options subject to Exchange Rules 307 and 309.
    With respect to GBTC, BTC, and BITB, the Exchange reviewed data 
presented by NYSE Arca in its filings to amend the position and 
exercise limits for GBTC, BTC, and BITB options. First, the Exchange 
reviewed NYSE Arca's comparison of the market capitalization of each of 
these three Bitcoin ETFs relative to the market capitalization of the 
entire Bitcoin market in terms of exercise risk and availability of 
deliverables. As noted above, as of November 25, 2024, there were 
19,787,762 Bitcoins in circulation.\22\ At a price of $94,830 per 
Bitcoin,\23\ that equates to a market capitalization of greater than 
$1.876 trillion. If a position (and exercise) limit of 250,000 
contracts were considered, the exercisable risk

[[Page 41428]]

would represent 9.13%,\24\ 30.14%,\25\ and 31.27% \26\ of GBTC, BTC, 
and BITB shares outstanding, respectively. Since each of GBTC, BTC, and 
BITB has a creation and redemption process managed through the issuer 
(whereby Bitcoin is used to create shares of each such Bitcoin ETF), 
the position and exercise limit can be compared to the total market 
capitalization of the entire Bitcoin market, and in that case, the 
exercisable risk for options on GBTC, BTC, and BITB would represent 
less than 0.10%,\27\ 0.06%,\28\ and 0.07%,\29\ respectively, of all 
Bitcoin outstanding. The Exchange notes that if each of GBTC, BTC, and 
BITB options were subject to a 250,000-contract position and exercise 
limit (based on each ETF's trading volume), and if all options on GBTC, 
BTC, or BITB shares were exercised at once, this occurrence would have 
a virtually unnoticed impact on the entire Bitcoin market. This NYSE 
Arca analysis demonstrates that a 250,000-contract position (and 
exercise) limit for each of GBTC, BTC, and BITB options would be 
appropriate given each of these Bitcoin ETF's liquidity.
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    \24\ This percentage is arrived at with this equation: (250,000 
contract limit * 100 shares per option/273,950,100 shares 
outstanding).
    \25\ This percentage is arrived at with this equation: (250,000 
contract limit * 100 shares per option/82,939,964 shares 
outstanding).
    \26\ This percentage is arrived at with this equation: (250,000 
contract limit * 100 shares per option/79,950,100 BITB shares 
outstanding).
    \27\ This number was arrived at with this calculation: ((250,000 
limit * 100 shares per option * $75.42 settle)/(19,787,762 Bitcoin 
outstanding * $94,830 Bitcoin price)).
    \28\ This number was arrived at with this calculation: ((250,000 
limit * 100 shares per option * $42.16 settle)/(19,787,762 Bitcoin 
outstanding * $94,830 Bitcoin price)).
    \29\ This number was arrived at with this calculation: ((250,000 
limit * 100 shares per option * $51.70 settle)/(19,787,762 Bitcoin 
outstanding * $94,830 Bitcoin price)).
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    Additionally, NYSE Arca reviewed the proposed position limit by 
comparing it to position limits for derivative products regulated by 
the Commodity Futures Trading Commission (``CFTC''). While the CFTC, 
through the relevant Designated Contract Markets, only regulates 
options positions based upon delta equivalents (creating a less 
stringent standard), NYSE Arca examined equivalent bitcoin futures 
position limits. In particular, NYSE Arca looked at the CME bitcoin 
futures contract \30\ that has a position limit of 2,000 futures.\31\ 
On October 22, 2024, CME bitcoin futures settled at $94,945.\32\ On 
October 22, 2024, GBTC settled at $53.64, BTC settled at $29.90, and 
BITB settled at $36.74, which would equate to greater than 17,700,410 
shares of GBTC, 31,754,180 shares of BTC, and 25,842,406 shares of 
BITB, if the CME notional position limit was utilized.\33\ Since 
substantial portions of any distributed options portfolio are likely to 
be out of the money on expiration, an options position limit equivalent 
to the CME position limit for bitcoin futures (considering that all 
options deltas are <=1.00) should be a bit higher than the CME implied 
175,578 limit.
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    \30\ CME Bitcoin Futures are described in Chapter 350 of CME's 
Rulebook.
    \31\ See the Position Accountability and Reportable Level Table 
in the Interpretations & Special Notices Section of Chapter 5 of 
CME's Rulebook.
    \32\ 2,000 futures at a 5 bitcoin multiplier (per the contract 
specifications) equates to $949,450,000 (2000 contracts * 5 BTC per 
contract * $94,945 price of November BTC future) of notional value.
    \33\ Id.
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    Of note, unlike options contracts, CME position limits are 
calculated on a net futures equivalent basis by contract and include 
contracts that aggregate into one or more base contracts according to 
an aggregation ratio(s).\34\ Therefore, if a portfolio includes 
positions in options on futures, CME would aggregate those positions 
into the underlying futures contracts in accordance with a table 
published by CME on a delta equivalent value for the relevant spot 
month, subsequent spot month, single month and all month position 
limits.\35\ If a position exceeds position limits because of an option 
assignment, CME permits market participants to liquidate the excess 
position within one business day without being considered in violation 
of its rules. Additionally, if at the close of trading, a position that 
includes options exceeds position limits for futures contracts, when 
evaluated using the delta factors as of that day's close of trading, 
but does not exceed the limits when evaluated using the previous day's 
delta factors, then the position shall not constitute a position limit 
violation. Based on the aforementioned analysis, the Exchange believes 
that the proposed 250,000 contracts for position and exercise limits is 
appropriate.
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    \34\ See <a href="https://www.cmegroup.com/education/courses/market-regulation/position-limits/positionlimits-aggregation-of-contracts-and-table.htm">https://www.cmegroup.com/education/courses/market-regulation/position-limits/positionlimits-aggregation-of-contracts-and-table.htm</a>.
    \35\ Id.
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    Finally, NYSE Arca also compared a position and exercise limit of 
250,000 contracts for GBTC, BTC, and BITB against the position and 
exercise limits for GLD and SLV options. GLD has a float of 306.1 
million shares \36\ and a position limit of 250,000 contract. SLV has a 
float of 520.7 million shares,\37\ and a position limit of 250,000 
contracts. As previously noted, position and exercise limits are 
designed to limit the number of options contracts traded on the 
exchange in an underlying security that an investor, acting alone or in 
concert with others directly or indirectly, may control. A position 
limit exercise in GLD would represent 8.17% of the float of GLD; and a 
position limit exercise in SLV would represent 4.8% of the float of 
SLV. In comparison, a 250,000 contract position limit would represent 
9.13% of the GBTC float, 30.14% of the BTC float, and 31.27% of the 
BITB float. A 250,000 contract position and exercise limit for each of 
GBTC, BTC, and BITB is comparable with the standard applied to GLD and 
SLV and is therefore appropriate.
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    \36\ See <a href="https://www.ssga.com/us/en/intermediary/etfs/spdr-gold-shares-gld">https://www.ssga.com/us/en/intermediary/etfs/spdr-gold-shares-gld</a>.
    \37\ See <a href="https://www.ishares.com/us/products/239855/ishares-silver-trust-fund">https://www.ishares.com/us/products/239855/ishares-silver-trust-fund</a>.
    \38\ Market Makers refers to ``Lead Market Makers,'' ``Primary 
Lead Market Makers,'' and ``Registered Market Makers'' collectively. 
See Exchange Rule 100.
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    The Exchange believes the above information demonstrates that each 
Bitcoin ETF option has more than sufficient liquidity to garner an 
increased position and exercise limit of 250,000 contracts. The 
Exchange believes that any concerns related to manipulation and 
protection of investors are mollified by the significant liquidity 
provision in each Bitcoin ETF. The Exchange states that, as a general 
principle, increases in active trading volume and deep liquidity of the 
underlying securities do not lead to manipulation and/or disruption. 
Additionally, the Exchange believes the proposed rule change would lead 
to a more liquid and competitive market environment for the Bitcoin ETF 
options, which will benefit customers that trade these options. 
Further, the reporting requirement for such options would remain 
unchanged. Thus, the Exchange will still require that each member 
organization that maintains positions in impacted options on the same 
side of the market, for its own account or for the account of a 
customer, report certain information to the Exchange. This information 
includes, but would not be limited to, the options' positions, whether 
such positions are hedged and, if so, a description of the hedge(s). 
Market-Makers \38\ would continue to be exempt from this reporting 
requirement, however, the Exchange may access Market-Maker position 
information.\39\

[[Page 41429]]

Moreover, the Exchange's requirement that member organizations file 
reports with the Exchange for any customer who held aggregate large 
long or short positions on the same side of the market of 200 or more 
option contracts of any single class for the previous day will remain 
at this level and will continue to serve as an important part of the 
Exchange's surveillance efforts.\40\
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    \39\ The Options Clearing Corporation (``OCC'') through the 
Large option Position Reporting (``LOPR'') system acts as a 
centralized service provider for Member compliance with position 
reporting requirements by collecting data from each Member or Member 
organization, consolidating the information, and ultimately 
providing detailed listings of each Member's report to the Exchange, 
as well as Financial Industry Regulatory Authority, Inc. 
(``FINRA''), acting as its agent pursuant to a regulatory services 
agreement (``RSA''). Member means an individual or organization 
approved to exercise the trading rights associated with a Trading 
Permit. Members are deemed ``members'' under the Exchange Act. See 
Exchange Rule 100.
    \40\ See Exchange Rule 310.
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    The Exchange also has no reason to believe that the growth in 
trading volume in Bitcoin ETF options will not continue. Rather, the 
Exchange expects continued options volume growth in the Bitcoin ETF 
options as opportunities for investors to participate in the options 
markets increase and evolve. The Exchange believes that the current 
position and exercise limits applicable to the Bitcoin ETF options are 
restrictive and will hamper the listed options markets from being able 
to compete fairly and effectively with the over-the-counter (``OTC'') 
markets. OTC transactions occur through bilateral agreements, the terms 
of which are not publicly disclosed to the marketplace. As such, OTC 
transactions do not contribute to the price discovery process on a 
public exchange or other lit markets. The Exchange believes that 
without the proposed changes to position and exercise limits for the 
Bitcoin ETF options, market participants will find the 25,000 contract 
position limit an impediment to their business and investment 
objectives as well as an impediment to efficient pricing. As such, 
market participants may find the less transparent OTC markets a more 
attractive alternative to achieve their investment and hedging 
objectives, leading to a retreat from the listed options markets, where 
trades are subject to reporting requirements and daily surveillance. 
However, the Exchange notes that each Bitcoin ETF options position 
limits would be reviewed on a six month basis, pursuant to Exchange 
Rule 307(d), similar to other options.
    The Exchange represents that the same surveillance procedures 
applicable to all other options on other ETFs currently listed and 
traded on the Exchange will apply to options on each Bitcoin ETF 
options. Also the Exchange represents that it has the necessary systems 
capacity to support the new option series. The Exchange believes that 
its existing surveillance and reporting safeguards are designed to 
deter and detect possible manipulative behavior which might potentially 
arise from listing and trading options on ETFs, including the Bitcoin 
ETF options.
    The Exchange believes that the existing surveillance procedures and 
reporting requirements at the Exchange are capable of properly 
identifying disruptive and/or manipulative trading activity. The 
Exchange also represents that it has adequate surveillances in place to 
detect potential manipulation, as well as reviews in place to identify 
continued compliance with the Exchange's listing standards. These 
procedures monitor market activity via automated surveillance 
techniques to identify unusual activity in both options and the 
underlyings, as applicable. The Exchange also notes that large stock 
holdings must be disclosed to the Commission by way of Schedules 13D or 
13G,\41\ which are used to report ownership of stock which exceeds 5% 
of a company's total stock issue and may assist in providing 
information in monitoring for any potential manipulative schemes. 
Further, the Exchange believes that the current financial requirements 
imposed by the Exchange and by the Commission adequately address 
concerns regarding potentially large, unhedged positions in equity 
options. Current margin and risk-based haircut methodologies serve to 
limit the size of positions maintained by any one account by increasing 
the margin and/or capital that a member organization must maintain for 
a large position held by itself or by its customer.\42\ In addition, 
Rule 15c3-1 \43\ imposes a capital charge on member organizations to 
the extent of any margin deficiency resulting from the higher margin 
requirement.
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    \41\ 17 CFR 240.13d-1.
    \42\ See Exchange Rules, Chapter 15, Margins.
    \43\ 17 CFR 240.15c3-1.
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2. Statutory Basis
    The Exchange believes the proposed rule change is consistent with 
the Act and the rules and regulations thereunder applicable to the 
Exchange and, in particular, the requirements of Section 6(b) of the 
Act.\44\ Specifically, the Exchange believes the proposed rule change 
is consistent with the Section 6(b)(5) \45\ requirements that the rules 
of an exchange be designed to prevent fraudulent and manipulative acts 
and practices, to promote just and equitable principles of trade, to 
foster cooperation and coordination with persons engaged in regulating, 
clearing, settling, processing information with respect to, and 
facilitating transactions in securities, to remove impediments to and 
perfect the mechanism of a free and open market and a national market 
system, and, in general, to protect investors and the public interest. 
Additionally, the Exchange believes the proposed rule change is 
consistent with the Section (6)(b)(5) \46\ requirement that the rules 
of an exchange not be designed to permit unfair discrimination between 
customers, issuers, brokers, or dealers.
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    \44\ 15 U.S.C. 78f(b).
    \45\ 15 U.S.C. 78f(b)(5).
    \46\ Id.
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    The Exchange believes that removing each Bitcoin ETF options from 
the table of position limits in Interpretation and Policy .01 to 
Exchange Rule 307 and the table of exercise limits in Interpretation 
and Policy .01 to Exchange Rule 309, so their position limit would be 
reviewed similar to all other options for which the Exchange has not 
filed to otherwise establish the position limits to levels outside of 
the position limits of Exchange Rule 307(d) is consistent with the Act. 
This proposal will remove impediments to and perfect the mechanism of a 
free and open market and a national market system, and, in general, 
protect investors and the public interest, because it will provide 
market participants with the ability to more effectively execute their 
trading and hedging activities. Also, based on current trading volume, 
the resulting increase in the position (and exercise) limits for each 
of the Bitcoin ETF options may allow Market-Makers to maintain their 
liquidity in these options in amounts commensurate with the continued 
high consumer demand in the Bitcoin ETF options. Subjecting options on 
each Bitcoin ETF to the position limits in Exchange Rule 307(d) and 
corresponding exercise limits in Exchange Rule 309 may also encourage 
other liquidity providers to continue to trade on the Exchange rather 
than shift their volume to OTC markets, which will enhance the process 
of price discovery conducted on the Exchange through increased order 
flow. Further, this proposed change would allow institutional investors 
to utilize the Bitcoin ETF options for prudent risk management 
purposes. The Exchange notes that each of the Bitcoin ETF position 
limits would be reviewed on a six month basis, pursuant to Exchange 
Rule 307(d), similar to other options.
    In addition, the Exchange believes that the current liquidity in 
each Bitcoin ETF will mitigate concerns regarding potential 
manipulation of each Bitcoin ETF options and/or disruption of each

[[Page 41430]]

Bitcoin ETF upon amending the table of position limits in 
Interpretation and Policy .01 to Exchange Rule 307 and the table of 
exercise limits in Interpretation and Policy .01 to Exchange Rule 309.
    In support of the proposed rule change, the Exchange cites the in-
depth analysis NYSE Arca did in its filings, as noted above, NYSE Arca 
considered, among other things: (1) applicable Bitcoin ETF's market 
capitalization and ADV, and a 250,000 contract position and exercise 
limit in relation to the position limits of options on other 
securities; (2) market capitalization of the entire Bitcoin market in 
terms of exercise risk and availability of deliverables; and (3) 
comparing a 250,000 contract position limit to position limits for 
derivative products regulated by the CFTC. Based on the Exchange's 
review of these analyses, the Exchange believes that subjecting the 
Bitcoin ETF options to the position (and exercise) limits set forth in 
Interpretation and Policy .01 to Exchange Rule 307 and the table of 
exercise limits in Interpretation and Policy .01 to Exchange Rule 309 
is more than appropriate. The proposed position and exercise limits 
reasonably and appropriately balance the liquidity provisioning in the 
market against the prevention of manipulation. The Exchange believes 
these proposed limits are effectively designed to prevent an individual 
customer or entity from establishing options positions that could be 
used to manipulate the market of the underlying as well as the Bitcoin 
market.\47\
    Finally, as discussed above, the Exchange's surveillance and 
reporting safeguards continue to be designed to deter and detect 
possible manipulative behavior that might arise from increasing or 
eliminating position and exercise limits in certain classes. The 
Exchange believes that the current financial requirements imposed by 
the Exchange and by the Commission adequately address concerns 
regarding potentially large, unhedged positions in the options on the 
underlying securities, further promoting just and equitable principles 
of trading, the maintenance of a fair and orderly market, and the 
protection of investors.
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    \47\ See Securities Exchange Act Release No. 39489 (December 24, 
1997), 63 FR 276 (January 5, 1998) (SR-CBOE-1997-11).
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B. Self-Regulatory Organization's Statement on Burden on Competition

    The Exchange does not believe that the proposed rule change will 
impose any burden on competition that is not necessary or appropriate 
in furtherance of the purposes of the Act. In this regard and as 
indicated above, the Exchange notes that the rule change is being 
proposed as a competitive response to filings submitted by NYSE Arca, 
Cboe and ISE.\48\
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    \48\ See supra note 4.
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    The Exchange's proposal does not burden intra-market competition 
because all Members would be subject to the position limits in Exchange 
Rule 307(d) and corresponding exercise limits in Exchange Rule 309. The 
Exchange believes that the proposed rule change will also provide 
additional opportunities for market participants to continue to 
efficiently achieve their investment and trading objectives for Bitcoin 
ETF options on the Exchange.
    The Exchange does not believe that the proposed rule change will 
impose any burden on inter-market competition as the proposal is not 
competitive in nature. The Exchange expects that all option exchanges 
will adopt substantively similar proposals, such that the Exchange's 
proposal would benefit competition. For these reasons, the Exchange 
does not believe that the proposed rule change will impose any burden 
on competition not necessary or appropriate in furtherance of the 
purposes of the Act.

C. Self-Regulatory Organization's Statement on Comments on the Proposed 
Rule Change Received From Members, Participants, or Others

    No written comments were either solicited or received.

III. Date of Effectiveness of the Proposed Rule Change and Timing for 
Commission Action

    The Exchange has filed the proposed rule change pursuant to Section 
19(b)(3)(A)(iii) of the Act \49\ and Rule 19b-4(f)(6) thereunder.\50\ 
Because the proposed rule change does not: (i) significantly affect the 
protection of investors or the public interest; (ii) impose any 
significant burden on competition; and (iii) become operative prior to 
30 days from the date on which it was filed, or such shorter time as 
the Commission may designate, if consistent with the protection of 
investors and the public interest, the proposed rule change has become 
effective pursuant to Section 19(b)(3)(A) of the Act \51\ and Rule 19b-
4(f)(6)(iii) thereunder.\52\
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    \49\ 15 U.S.C. 78s(b)(3)(A)(iii).
    \50\ 17 CFR 240.19b-4(f)(6). In addition, Rule 19b-4(f)(6) 
requires a self-regulatory organization to give the Commission 
written notice of its intent to file the proposed rule change at 
least five business days prior to the date of filing of the proposed 
rule change, or such shorter time as designated by the Commission. 
The Exchange has satisfied the pre-filing requirement.
    \51\ 17 CFR 240.19b-4(f)(6).
    \52\ 15 U.S.C. 78s(b)(3)(A)(iii).
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    A proposed rule change filed under Rule 19b-4(f)(6) \53\ under the 
Act does not normally become operative prior to 30 days after the date 
of the filing. However, pursuant to Rule 19b-4(f)(6)(iii),\54\ the 
Commission may designate a shorter time if such action is consistent 
with the protection of investors and the public interest. The Exchange 
has requested that the Commission waive the 30-day operative delay so 
that the proposal may become operative immediately upon filing. The 
Commission previously approved the removal of the 25,000 contract 
position and exercise limits for Bitcoin ETF options, such that those 
funds will be subject to the position and exercise limits as determined 
for equity options for which no set limit has been otherwise 
established on that exchange.\55\ The Exchange is proposing similarly 
to remove of the 25,000 contract position and exercise limit for 
Bitcoin ETF options, such that those funds will be subject to the 
position and exercise limits as determined by the position limit rules 
at Rule 307. The Exchange has provided information regarding Bitcoin 
ETF options, including, among other things, information regarding 
trading volume, and the market capitalization of Bitcoin ETF options 
and surveillance procedures that will apply. The Commission notes that 
the proposal raises no new or novel legal issues and would simply 
provide an additional venue for trading Bitcoin ETF options with 
position and exercise limits that may be higher than 25,000 contracts. 
Therefore, the Commission believes that waiver of the 30-day operative 
delay is consistent with the protection of investors and the public 
interest. Accordingly, the Commission hereby waives the 30-day 
operative delay and designates the proposed rule change as operative 
upon filing.\56\
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    \53\ 17 CFR 240.19b-4(f)(6).
    \54\ 17 CFR 240.19b-4(f)(6)(iii).
    \55\ See supra Note 4.
    \56\ For purposes only of waiving the 30-day operative delay, 
the Commission has also considered the proposed rule's impact on 
efficiency, competition, and capital formation. See 15 U.S.C. 
78c(f).
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    At any time within 60 days of the filing of such proposed rule 
change, the Commission summarily may temporarily suspend such rule 
change if it appears to the Commission that such action is necessary or 
appropriate in the public interest, for the protection of investors, or 
otherwise in furtherance of

[[Page 41431]]

the purposes of the Act. If the Commission takes such action, the 
Commission shall institute proceedings under Section 19(b)(2)(B) \57\ 
of the Act to determine whether the proposed rule change should be 
approved or disapproved.
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    \57\ 15 U.S.C. 78s(b)(2)(B).
---------------------------------------------------------------------------

IV. Solicitation of Comments

    Interested persons are invited to submit written data, views and 
arguments concerning the foregoing, including whether the proposed rule 
change is consistent with the Act. Comments may be submitted by any of 
the following methods:

Electronic Comments

    <bullet> Use the Commission's internet comment form (<a href="https://www.sec.gov/rules/sro.shtml">https://www.sec.gov/rules/sro.shtml</a>); or
    <bullet> Send an email to <a href="/cdn-cgi/l/email-protection#1361667f763e707c7e7e767d6760536076703d747c65"><span class="__cf_email__" data-cfemail="c5b7b0a9a0e8a6aaa8a8a0abb1b685b6a0a6eba2aab3">[email&#160;protected]</span></a>. Please include 
file number SR-MIAX-2025-38 on the subject line.

Paper Comments

    <bullet> Send paper comments in triplicate to Secretary, Securities 
and Exchange Commission, 100 F Street NE, Washington, DC 20549-1090.

All submissions should refer to file number SR-MIAX-2025-38. This file 
number should be included on the subject line if email is used. To help 
the Commission process and review your comments more efficiently, 
please use only one method. The Commission will post all comments on 
the Commission's internet website (<a href="https://www.sec.gov/rules/sro.shtml">https://www.sec.gov/rules/sro.shtml</a>). Copies of the filing will be available for inspection and 
copying at the principal office of the Exchange. Do not include 
personal identifiable information in submissions; you should submit 
only information that you wish to make available publicly. We may 
redact in part or withhold entirely from publication submitted material 
that is obscene or subject to copyright protection. All submissions 
should refer to file number SR-MIAX-2025-38 and should be submitted on 
or before September 15, 2025.

    For the Commission, by the Division of Trading and Markets, 
pursuant to delegated authority.\58\
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    \58\ 17 CFR 200.30-3(a)(12).
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Sherry R. Haywood,
Assistant Secretary.
[FR Doc. 2025-16181 Filed 8-22-25; 8:45 am]
BILLING CODE 8011-01-P


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Indexed from Federal Register on August 25, 2025.

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