Volatility Trigger (Gamma Flip)
Historical Vanna Profile Trigger Curve Strike DeskMethod B
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Understanding Volatility Trigger (Gamma)
Practical map for IV-induced hedging flowCore ideaVolatility Trigger on this page is the estimated spot where net gamma exposure crosses zero. VEX layers then show where IV shocks can amplify or damp intraday flow around that regime boundary.
Vanna Sensitivity
Vanna measures how delta changes when implied volatility moves. It captures IV-induced hedge pressure that gamma-only views can miss.Trigger Is A Regime Line
Volatility Trigger is the estimated spot where net gamma exposure changes sign. It is a structural transition level, not a standalone entry signal.IV Shock Flow
When implied volatility shifts quickly, high absolute net vanna can force larger hedge rebalancing and increase intraday instability.Model Caveat
Trigger quality depends on IV/OI data integrity, lot-size assumptions, and sign convention. Use it with price action and liquidity context.Terminology
How Traders Can Use Each Chart
Vanna Profile ChartHow to Use: Track the biggest positive and negative NetVEX bars first. These strikes are your structural flow poles.Trading Read: If poles migrate toward spot, expect higher local instability and faster regime shifts.
Volatility Trigger SweepHow to Use: Use the zero-crossing of the net GEX curve as the regime boundary and monitor spot acceptance above/below it.Trading Read: Near trigger, reduce size and demand confirmation; away from trigger, continuation/fade setups are cleaner.
VEX Density ChartHow to Use: Use the full-strike density map to locate positive, negative, and absolute stress clusters rather than relying only on selected-window bars.Trading Read: When spot approaches a dense pole near trigger, IV-shock sensitivity usually becomes more important than simple range reading.
Trigger Regime ShiftHow to Use: Track spot, trigger, positive pole, negative pole, and aggregate NetGEX together across the session.Trading Read: The most actionable transitions happen when spot crosses trigger while aggregate NetGEX changes sign or the poles migrate toward price.
Intraday Vanna HeatmapHow to Use: Watch concentration persistence and delta-shift (Δ vs previous snapshot) at nearby strikes.Trading Read: Persistent build-up near spot suggests flow pressure; sudden migration signals structure reset.
Strike Desk TableHow to Use: Sort mentally by absolute NetVEX and compare with spot distance and IV levels.Trading Read: High absolute NetVEX close to spot is usually more actionable than distant high OI strikes.
How Traders Can Use This
Before EntryMark current spot, trigger, and top positive/negative NetVEX strikes. Trade only when structure and price action agree.
Near Trigger ZoneReduce size and require confirmation candles/volume. Trigger proximity often increases noise and false breaks.
Event SessionsOn RBI/Fed/CPI or global shock days, refresh the map more frequently. IV repricing can move trigger intraday.
Expiry SessionsLate-session OI migration can shift vanna poles quickly. Re-check trigger before adding continuation risk.
Model Assumptions You Should Know1. This is a modeled flow map, not an exchange-reported field.2. Trigger is solved from current chain snapshots, so it can shift with OI/IV migration.3. Use this with tape, breadth and liquidity context, especially on event-heavy sessions.
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