This is a market-structure mechanics story, not a market call.
MIAX Pearl filed SR-PEARL-2026-23 to make explicit how it handles certain Monday and Wednesday Short Term Option Daily Expirations when after-close earnings are scheduled (or get announced after the series already starts trading). The practical takeaway for self-directed traders is simple: you can lose the ability to open new positions in a specific short-dated expiry you were planning to use, even though existing positions may still be closed.
Important notes (not advice + options risk)
Non-advice notice: This article is for general information and education only, not financial, investment, legal, or tax advice, and not a recommendation to buy or sell anything. Options trading involves risk and is not suitable for all investors. See the site’s Risk Disclosure.
This is not financial advice, investment advice, or trading advice.
What happened (and when)
- January 16, 2026: MIAX Pearl filed SR-PEARL-2026-03 to expand Monday/Wednesday expirations for certain Qualifying Securities (context for how these expirations are listed).
- January 20, 2026: MIAX published an operational alert for the Monday/Wednesday Qualifying Securities rollout and noted at least one exclusion tied to an earnings announcement (evidence the exchange was already applying an earnings-related restriction operationally).
- May 14, 2026: MIAX Pearl filed SR-PEARL-2026-23 (the codification filing in this article).
- May 18, 2026: The SEC published Release No. 34-105503 (notice of filing and immediate effectiveness for SR-PEARL-2026-23).
Your monitoring detected this item on May 19, 2026. Read it as durable “expiration mechanics and access” context, not breaking price-sensitive news.
What the filing actually does (plain English)
SR-PEARL-2026-23 is best summarized as “codify the playbook” for a narrow but important case: single-stock Monday/Wednesday daily expirations when earnings are scheduled after the close.
1) It is about a specific slice of the options listing universe
The earnings-specific language is written for individual-stock Qualifying Securities. Qualifying Securities as a broader program can include other categories, but the after-close earnings mechanic described here is not written as a blanket “all underlyings, all dailies” rule.
2) If after-close earnings are known up front, Pearl won’t list that expiry
The filing says Pearl will not list a Monday/Wednesday daily expiration in an individual-stock Qualifying Security if an earnings announcement will occur after market close.
3) If the earnings timing changes after trading begins, the exchange chooses delist vs closing-only based on open interest
The operationally important addition is what happens if:
- the expiration is already listed and available for trading, and then
- an after-close earnings announcement is subsequently made for that day.
Pearl’s codified approach:
- If there is no open interest: Pearl will delist the affected expiration.
- If open interest exists: Pearl will designate the expiration as closing only.
The filing defines “Earnings Announcement” in terms of official public quarterly or yearly earnings information filed with the SEC (i.e., not every rumor or media note).
What “closing only” means in practice
“Closing only” is not the same as “the contract disappears.”
Closing-only treatment generally means you can place transactions that reduce or eliminate an existing position, but you cannot open a new position in that particular series on that exchange once it’s been put into closing-only status.
For retail traders, the practical impact is not philosophical. It is mechanical:
- You may lose a planned entry or roll path. If you were planning to open a fresh position in that exact expiry, you may need to adjust your plan.
- Liquidity can change fast. When new opening interest is cut off for a series, displayed size and quote quality can degrade quickly.
- “Your broker still shows the chain” is not the same as “you can open it.” Display, routing, and exchange restrictions can diverge.
Why this matters for options traders
This filing doesn’t forecast direction. It changes the “can I do the trade I thought I could do?” part of the workflow.
1) Earnings + short-dated options often means last-minute positioning
Short-dated earnings positioning is frequently about timing and flexibility: same-week hedges, late-day adjustments, and rolling plans. Losing opening access to a specific Monday/Wednesday daily expiry can matter more than a small change in implied volatility for many self-directed traders, because it forces a decision under time pressure.
If you want a refresher on how earnings typically affects implied volatility and why “IV crush” is a mechanics concept (not a guarantee), see: How earnings affect options prices and implied volatility and the site’s implied volatility guide.
2) Expiration-day earnings can create “two clocks”
Even when the stock market closes, options exercise/assignment decisions can still be shaped by what happens after the close. That’s one reason the exchange is careful about listing very short-dated expirations tied to after-close events: it is an operational risk window with limited time to adjust.
If you need a baseline refresher on expiration and assignment mechanics (not trade selection), start with: Options expiration, assignment, and exercise explained.
3) “Closing-only” can turn defined-risk intentions into operational risk
A spread or hedge can be well-defined on paper and still become operationally tricky when liquidity changes and you cannot open the exact series you expected. The result is often wider spreads, more slippage, and more reliance on broker cutoffs and risk controls.
Practical checklist (operations and risk, not a trade setup)
If you trade short-dated single-stock options around earnings, use this as a sanity checklist:
- Check the earnings calendar and the timing label (pre-market vs after-close) before you build a Monday/Wednesday daily-expiry plan.
- Have a Plan B expiry (or a Plan B structure) if the exact series you want becomes unavailable for opening.
- Assume liquidity can worsen suddenly in short-dated series around schedule changes; use limit orders and avoid “must-fill” thinking.
- Know your broker’s expiration cutoffs and exercise/assignment policies so you don’t confuse “exchange listing rules” with “broker processing rules.”
- Size for operational surprises (wider spreads, partial fills, slower adjustments), especially in very short-dated contracts.
If you want a broader framework for trading survival-first, see: Risk management in options trading: position sizing and probability.
What traders may misunderstand
Misunderstanding #1: “This is a brand-new earnings-day ban.”
Pearl’s framing is that SR-PEARL-2026-23 codifies existing practice. The most meaningful addition is the explicit “delist vs closing-only” treatment when earnings timing changes after trading in the series already began.
Misunderstanding #2: “If it’s affected, the contracts vanish.”
Not necessarily. The filing draws a line at open interest: no open interest means delist; existing open interest means closing-only. Those are very different outcomes for traders managing an existing position.
Misunderstanding #3: “This applies to every daily expiry and every underlying.”
No. The rule text is written for a narrow case: Monday and Wednesday daily expirations, Qualifying Securities, and the earnings mechanic described here is written for individual stocks.
Misunderstanding #4: “This tells you something bullish or bearish about earnings.”
It doesn’t. It’s a market-structure and operational filing. Treat it as a constraints-and-mechanics update, not a signal.
Bottom line
Read SR-PEARL-2026-23 as “how the exchange handles access to certain Monday/Wednesday single-stock daily expirations when after-close earnings are involved,” not as a directional event.
If you trade short-dated options around earnings, the durable lesson is operational: availability can change, liquidity can change, and your Plan A expiry may not be openable even if your position exists. Build your risk plan around that reality.
Sources
- MIAX Pearl filing SR-PEARL-2026-23 (primary filing PDF):
https://www.miaxglobal.com/sites/default/files/filing-files/SR_PEARL_2026_23_2.pdf- Used for the rule text describing “do not list,” “delist if no open interest,” and “closing only if open interest exists.”
- SEC Release No. 34-105503 (notice of filing and immediate effectiveness for SR-PEARL-2026-23):
https://www.sec.gov/files/rules/sro/pearl/2026/34-105503.pdf- Used for the filing/notice framing and procedural status language.
- SEC/MIAX notice for SR-PEARL-2026-03 (launch context for Monday/Wednesday Qualifying Securities expirations):
https://www.miaxglobal.com/sites/default/files/filing-files/SR_PEARL_2026_03_Notice_of_Filing_and_Immediate_Effectiveness.pdf- Used for context on the January 2026 rollout and operative timing language.
- MIAX operational alert (January 20, 2026) on Monday/Wednesday Qualifying Securities expirations:
https://www.miaxglobal.com/alert/2026/01/20/miax-exchange-group-options-markets-listing-monday-and-wednesday-weekly-1- Used for operational context (how the program was messaged to participants).
- MIAX alert (April 6, 2026) listing Q2 2026 Qualifying Securities:
https://www.miaxglobal.com/alert/2026/04/06/miax-exchange-group-options-markets-listing-monday-and-wednesday-weekly-1- Used to confirm the then-current Qualifying Securities universe named by MIAX for the program.
