GEX Dashboard

The GEX dashboard shows gamma exposure (GEX) by strike for Indian index options: an estimate of how much delta hedging option dealers would need to do as the index moves. It also shows the gamma flip, the call wall and put wall, and how net GEX changed over the last 5 and 15 minutes.

Shows	Net, call and put GEX per strike; net GEX, regime, gamma flip band, call and put walls, ΔGEX
Units	₹ crore of delta-hedge value per 1% move in the index
Scope	Nearest expiry or all expiries
Instruments	NIFTY, BANKNIFTY, SENSEX, FINNIFTY, MIDCPNIFTY, BANKEX
Updates	Profile every 5 seconds, spot marker every second, intraday history every minute, during market hours
History	Intraday net GEX at 1-minute samples; past sessions in Historical mode after signing in
Open it	quintalmind.com/gamma-exposure (opens without signing in) or /analysis/gex-dashboard

What you see

• Net GEX with a regime badge: Strong Long Gamma, Long Gamma, Flip Zone, Short Gamma or Strong Short Gamma. The regime comes from net GEX as a share of total |GEX|.
• ΔGEX Momentum: the change in net GEX over 5 minutes, with the 15-minute and full-day change below it.
• Gamma Flip (marked est.): the index level where net GEX changes sign. It is found by re-pricing the whole chain across a grid of spot levels. It is shown as a band: the range the level moves to when implied volatility is shifted and tilted by 10%.
• Walls: the call wall is the strike above spot with the largest call GEX; the put wall is the strike below spot with the largest put GEX. The distance from spot is shown under each.
• GEX by strike: a bar chart with Net, Call vs Put and Table views, and Nearest or All expiries. Spot, flip and walls are marked on it. Near expiry a note warns that gamma is bunched at the ATM (at-the-money) strike.
• Price & GEX: the session's price and GEX levels on one chart.
• Intraday Net GEX and Spot vs Gamma Flip: how net GEX and the flip moved through the session, and how many minutes spot spent above and below the flip.

The dealer-sign assumption

GEX needs to know whether dealers are long or short each option. The dashboard counts calls as positive gamma and puts as negative gamma, the US convention (dealers long calls, short puts). NSE publishes no trade-side data, so this cannot be checked for India. If the true positioning is the other way round, every bar and the flip level invert.

How to use it

1. Sign in with your broker and open /analysis/gex-dashboard, or open quintalmind.com/gamma-exposure and pick an index.
2. Choose the index from the tabs at the top and a strike range: Auto range, ATM ±10, ±20 or ±30.
3. Switch between Nearest and All expiries, and between Net, Call vs Put and Table.
4. When signed in, switch from Live to Historical, choose a session and step through it minute by minute. For archived days in Nearest scope, the minutes are rebuilt in your browser from the 1-minute archive.

Outside market hours the dashboard shows the last session, marked Last session.

Related

• Straddle chart shows the ATM straddle premium for the same indices through the day.
• Max pain gives another open-interest reading for the selected expiry.

FAQ

Where can I see live Nifty gamma exposure (GEX)?

At quintalmind.com/gamma-exposure/nifty, with the gamma flip, call wall, put wall and ΔGEX. It opens without signing in and covers NIFTY, BANKNIFTY, SENSEX, FINNIFTY, MIDCPNIFTY and BANKEX.

How does Quintal Mind calculate GEX?

For every strike it solves implied volatility from live option prices, computes Black-Scholes gamma and uses GEX = gamma × OI × spot² × 1%. Calls count as positive and puts as negative. Values are in ₹ crore per 1% move.

Is the dealer sign in Indian GEX charts measured?

No. NSE publishes no trade-side data, so the dashboard assumes the US convention: dealers are long calls and short puts. If the real positioning is the other way round, every bar and the flip level invert.

Can I see GEX for a past trading day?

Yes. After you sign in with your broker, switch the dashboard to Historical, pick a session and move through it minute by minute.