Overnight US tech earnings and Nasdaq movements establish Gift Nifty opening gaps. Verifying whether early 9:15–9:45 AM open interest supports the move distinguishes real trends from gap-and-trap reversals.

The 9:30 AM Option Chain Rule

Avoid trading the volatile 9:15 AM opening tick. Wait for the consolidated 9:30 AM NSE option chain refresh to verify whether Call writers are unwinding or aggressively blocking the gap with fresh CPR ≥ 6.0x resistance.