Your GEX walls, on the chart you actually trade

GEX measures the aggregate gamma that options dealers must hedge. Large concentrations create 'walls' — price levels where dealer hedging tends to dampen or amplify moves — and a 'gamma flip' level where dealer behavior changes character. Sharpnel computes these and draws them on your chart. See the full definition in the glossary at /glossary/gamma-exposure.

Most GEX products are read-only dashboards or daily PDF reports. Sharpnel draws the gamma walls on the same chart you trade — next to the DOM ladder, the footprint, and the tape — and recomputes them intraday, so the levels sit on the live order flow instead of in a separate window.

Real-time GEX is the Gamma tier at $39/mo — the walls, the gamma flip, the regime and the per-strike profile, recomputed about every 60 seconds. It runs in the terminal or draws inside a supported third-party charting platform. Pro at $125/mo adds the full order-flow stack around it. The free Explorer tier shows GEX on SPY and QQQ on 15-minute delayed data, so you can see how it works before subscribing.

Index and major-equity gamma, drawn on the chart you trade — including the index futures (/ES, /NQ) most dealer-hedging traders watch. It sits inside the full options workspace: the chain with per-strike and aggregate Greeks, the vol surface, vol cone, term structure, and put/call ratio.

The ES and NQ gamma levels aggregate the nearest eight option expirations within 60 days — same-day 0DTE, the weeklies, the monthlies, and the next quarterly. Far-dated LEAPS are deliberately excluded: their deep-strike open interest is large but says almost nothing about today's dealer hedging, and including it smears the near-the-money walls.

About every 60 seconds through the session. Each cycle re-pulls the option chain, recomputes Black-Scholes gamma per contract on current implied volatility, re-aggregates the strikes, and rescales to the live futures price. So the wall you're watching is at most a minute or two old — never a frozen 8am snapshot.

Because the flip is solved, not looked up. It's the price where net dealer gamma would cross zero, and Sharpnel re-solves it about every minute from per-contract Black-Scholes gamma. Posted open interest updates on the exchange's daily cycle, but implied volatility and spot move all session — so the zero-gamma crossing genuinely migrates, most visibly on heavy 0DTE days.

Above the gamma flip, dealers are typically long gamma, so their hedging leans against price — they sell strength into the call wall, which is why upside breaks tend to grind and stall. Below the flip, dealers are short gamma and hedge with the move — selling as price falls through the put wall — which is why downside breaks are more prone to accelerate.

Three things: an options chain with open interest and implied volatility, a live futures price to scale the strikes, and the Greeks math to turn the chain into levels. Sharpnel computes all of that server-side and streams the finished walls into the terminal, so you don't need a separate options-data subscription to see them.