IEX Extends Timeline for Pegged Orders in Pre- and Post-Market Trading
Investors Exchange (IEX) has extended the timetable for announcing when it will permit pegged orders to trade during pre-market and post-market sessions. In a September 10 SEC notice, IEX said it needs more time to complete its standard deployment process for the earlier rule change, SR-IEX-2026-19.
The prior filing required IEX to publish a Trading Alert with the implementation date by October 8, 2026, while giving market participants at least 10 days’ advance notice. Under the new filing, IEX has moved that alert deadline by 60 days to December 7, 2026. The exchange said it is not changing the terms of the underlying extended-hours pegged-order proposal—only the timeframe for announcing its implementation date.
Pegged orders adjust their price reference under an exchange’s order rules. IEX’s change concerns whether that functionality can trade in sessions outside the regular market. The SEC designated the extension operative upon filing after waiving the normal 30-day delay, according to the notice.
Why it matters
The update is a schedule change, not a launch. Traders using brokers or algorithms that may route pegged orders to IEX should not assume extended-hours availability before IEX publishes its Trading Alert. Extended-hours execution also has different liquidity and price-discovery conditions from the regular session, so order-routing and instruction support remain important.
What to watch next
IEX must announce the implementation date on or before December 7, 2026, and give at least 10 days’ notice. Watch the exchange’s Trading Alerts and broker release notes for the actual go-live date and supported order behavior.