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Trading members must follow revised session timings, order types, execution priorities, and data dissemination rules for the pre-open call auction session in the equity derivatives segment. The exchange changes the pre-open session duration to 15 minutes from 9:00 am to 9:15 am, splits order entry into two periods with specific market order restrictions, and updates API session indicators. These modifications apply to all trading members operating in the equity derivatives segment starting from September 7, 2026.
What you must do
Key dates
Who is affected
Exceptions
If you do not comply
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