Session clock (illustrative — not a signal schedule)
NSE cash equity hours run roughly 9:15 to 15:30 IST. Labels below are descriptive chapters, not a playbook. Open: fresh prints; OI and futures may reshuffle fast — where contracts are shifting. Mid: structure often clearer — crowded strikes, gamma region, futures volume cluster. Close: positioning into the next day — how stacks and futures activity look as the clock thins.
Tuesday weekly expiry: Nifty weekly options expiry is Tuesday (not Thursday).
The quad — Flip · Gamma · POC · Tape
Flip — regime boundary (not support). Gamma Region — hedge map (sticky vs jumpy tendency). Other Indian tools also show GEX — Flip/GEX are chapters under session math, not uniqueness claims. POC — busy price inside Futures Structure Desk — not a turn signal. Tape / futures — hedge pipe story, not smart money arrived.
5-minute screen read order
1) Regime first (Flip / Gamma Region). 2) Crowded strikes (OI Change). 3) Busy price (session POC). 4) Hedge pipe (futures structure). 5) Behavior notes (descriptive). 6) What the picture cannot say. That last step is part of the job — see the reliability ladder.
Ready to sit the desk? OI Change, Gamma Region, Futures Structure — free to start.
Get Started for FreeFAQ
When is Nifty weekly options expiry?
On the current NSE calendar, Nifty weekly options expiry is Tuesday — not Thursday.
Is Flip a support or resistance level?
No. Flip is a regime boundary on a modelled gamma map — structure language, not a tip level.
Does twiQ uniquely invent GEX?
No. Other tools also show GEX. twiQ treats Flip/GEX as chapters of session math for Indian retail.
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OI Change, Gamma Region, Futures Structure Desk — one calm read. Free to start. Read it. Don't trade it.