Nasdaq ISE Postpones FLEX Trading System Upgrade Again
Published Date: 6/22/2026
Notice
Summary
Nasdaq ISE is hitting the pause button and pushing back some planned upgrades to their electronic FLEX trading until December 20, 2027. This delay affects traders and firms using FLEX options, giving them more time to prepare for the new changes. No extra costs are mentioned, just a bit more breathing room before the new rules kick in.
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
Nasdaq ISE Delays FLEX Upgrade
If you trade FLEX options or work at a firm that uses them, Nasdaq ISE delayed planned electronic FLEX enhancements. The implementation date is moved from being on or before December 20, 2026 to being on or before December 20, 2027, giving traders and firms one more year to finish systems changes, testing, and preparations. The filing says the substance of the enhancements does not change and the Exchange will announce the actual implementation date in an Options Trader Alert.
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