2026-20302NoticeWallet

Stock Traders Brace for 23-Hour Daily Trading Marathons

Published Date: 10/5/2026

Notice

Summary

MIAX Pearl is updating its risk controls for traders because other big stock exchanges and data processors are extending their trading hours to 23 hours a day, 5 days a week. This change helps keep trading safe and smooth during these longer hours. The new rules are effective immediately, so equity members need to be ready to trade under these updated controls starting now.

Analyzed Economic Effects

3 provisions identified: 1 benefits, 2 costs, 0 mixed.

Risk controls will ignore overnight trades

MIAX Pearl will use last trade prices received outside Regular Trading Hours only if those trades were received during the Exchange's Early Trading Session (4:00 a.m. to 9:30 a.m. ET) or Late Trading Session (4:00 p.m. to 8:00 p.m. ET). The Exchange will not use last trade prices from the anticipated overnight trading session (9:00 p.m. to 4:00 a.m. ET) as reference prices for Limit Order Price Protection (Rule 2614) or Trading Collars (Rule 2618).

Changes take effect December 6, 2026

The Exchange plans to implement these rule amendments on December 6, 2026, the same date the Securities Information Processors will extend their hours to 23 hours per day, 5 days per week. Equity Members must be ready to operate under the updated risk controls beginning on that date.

Broker-dealers remain responsible for market-access controls

Broker-dealers with market access must still perform appropriate due diligence under SEC Rule 15c3-5 to ensure their controls are reasonably designed; using MIAX Pearl's risk settings will not automatically satisfy Exchange or federal compliance obligations. Equity Members are responsible for complying with all Exchange and SEC rules.

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Key Dates

Published Date
Effective Date
10/5/2026
12/6/2026

Department and Agencies

Department
Independent Agency
Agency
Securities and Exchange Commission
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