GexDeck · GEX / VEX Heatmap + Options Flow

Intraday Levels

Collecting snapshots today — the level chart builds after the next 15-min refresh.

Alerts

Watching for spot crossing zero γ and call / put wall changes.

GEX HEATMAP

Contract Lookup

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Type e.g. BP 48 C 10/30/2026 — or pick expiry / strike below. Learn to read a single contract: volume, OI, greeks, and how its flow traded bid vs ask, by day and by 30 minutes.

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Live Options Flow — Net Buys vs Sells

Every ticker. Call vs put premium, buyer-initiated vs seller-initiated premium, sweeps, blocks and unusual opening trades — the GexDeck flow tape.

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1D · 1min

Net Premiums

Net Volume

Delta & Vega Flow

Net Premium by Expiry

Net Premium by Strike

Top Chains By Volume

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Flow Tape — tap a row to open that contract

Intraday Net Flow — Tide

King Node Scanner

The whole book at a glance — every name ranked by its Pull Score toward the King node, the largest single strike × expiry gamma cell on its board. Strongest pull first.

Max dist % Min |King| $M Net GEX

Universe of 20 names plus any you add · tap a row to open that ticker on the heatmap. Pull Score (0–100) ranks how strongly price may be drawn to a name's King — blending distance to the King, the King's dominance over the next strike, that distance measured against today's expected move, and the King's size. A ranking, not a forecast.

Scanning the universe — full chains take a few seconds…

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Net GEX—

Call Wall—

Put Wall—

Chart Tracker — price × gamma heatmap

Load a ticker, then open Tracker.

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Scroll or pinch to zoom · drag to look back

Walls, gamma flip, King and the GEX-by-strike ladder are drawn on the same chart as price. EMA chips toggle each average on/off individually; RSI(14) and volume sit in their own panels below price, with the call/put flow strip on top of volume.

How to read GexDeck

Start: type any ticker, press Load. The heatmap shows dealer exposure for every strike (rows) against every expiry (columns).

GEX / VEX / DEX / Charm: GEX is gamma exposure — positive gamma tends to pin price and dampen moves, negative gamma tends to amplify them. VEX tracks volatility exposure, DEX tracks directional delta exposure, and Charm tracks how delta decays as expiry approaches.

Key levels: the Call Wall is the strike with the largest positive exposure overhead, the Put Wall is the largest negative exposure below, Zero Γ is where cumulative gamma flips sign, and King is the single biggest strike × expiry cell.

Expected moves: Daily, Weekly and Monthly ranges show where the options market is pricing movement to that expiry.

Live Flow: net premium split by buys and sells. Heavy buy-side call premium is bullish flow; heavy buy-side put premium is bearish / hedging flow. Sweeps hit multiple exchanges at once, blocks are large single prints, and “Unusual” flags volume running above open interest.

Data: heatmaps are computed from the full options chain (greeks × open interest) and refresh on a 15-minute cadence. Flow is real-time when an Unusual Whales key is configured on Vercel, otherwise modelled from chain volume.

Nodes & Levels

Reading the board: every row is a strike price and every column is an expiry, nearest first. A cell shows how much dealer exposure sits at that strike for that expiry. Teal cells are positive exposure and magenta cells are negative; the brighter the cell, the bigger the position behind it. One row is spot — the current price — and the band above the grid shows where spot sits between the put wall and the call wall, as a percentage of the way across.

King node: the single largest cell on the board, painted solid gold. Dealers hedge hardest against their biggest position, so price often gravitates toward the King as its expiry approaches — think magnet first, and a pin into the close.

Call Wall: the strike overhead carrying the largest positive exposure. Hedging flow around it tends to lean against rallies, so it often behaves like resistance.

Put Wall: the strike below carrying the largest negative exposure. It often behaves like support — hedging flow tends to cushion sell-offs as price leans into it.

Zero Γ (gamma flip): the price level where total dealer gamma changes sign. Above it, dealers are net long gamma and their hedging trades against the move — selling rallies, buying dips — which dampens swings and favours range trading. Below it, dealers are net short gamma and hedge with the move — buying strength, selling weakness — which amplifies swings and favours faster, trending price action.

Max Pain: the strike where, at expiry, the greatest total value of options would expire worthless — the worst outcome for option buyers as a group and the best for the writers who sold those contracts. Price sometimes drifts toward it into expiry; treat it as background pressure, not a target.

Expected-move nodes: the D, W, M and A badges on the strike rows mark spot plus and minus one standard deviation for the Daily, Weekly, Monthly and Annual horizons — the range the options market is pricing in for each. Reaching a marker means the move is fully priced for that horizon; pushing beyond it means the market is being surprised.

Velocity badges: on the Daily and Weekly columns, the biggest strikes carry a small ▲/▼ percentage: how much that cell's value has changed since the first snapshot of the session. It is the quickest way to see whether a level is building or fading. Badges update each time the board refreshes.

Halo (confluence): a ringed cell means the Daily and Weekly columns — and the Monthly column too, when it sits on the board — point the same way at that strike and each one is sizeable. A level one horizon makes is a suggestion; several horizons stacked on the same strike make a level worth respecting.

Node %: a display mode that re-reads every cell as a signed share of its own column's King node, so the biggest cell in each expiry reads ±100% and everything else is sized against it. It makes strong and weak columns directly comparable at a glance.

The four exposures, one line each: GEX measures gamma — how strongly dealer hedging reacts when price moves. VEX measures vanna — how delta shifts when implied volatility moves. DEX measures delta — outright directional exposure. Charm measures delta decay — how delta bleeds away simply as time passes toward expiry.

GexDeck runs on roughly 15-minute-delayed data, so the velocity badges and the movers strip update when the board refreshes, not tick by tick.

For education only — not financial advice.

Ticker	Net Flow	Call Prem	Put Prem	P/C
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