GEX Tool
The GEX tool for equities and crypto.
Ranked gamma walls, the zero-gamma flip, and dealer positioning - for SPX, NDX, single names, BTC, ETH, and 100+ crypto assets. One subscription. Every session.
$99/mo or $82.50/mo billed annually · 7-day free trial · Cancel anytime
Everything a GEX tool should show.
Six panels that answer the questions traders actually ask about dealer positioning - for equities and crypto.
Ranked GEX walls
Call walls and put walls ranked by dealer gamma concentration, overlaid on the price chart as mechanical intraday levels.
Zero-gamma flip level
The price at which dealer gamma flips from positive to negative - the single most important intraday regime marker.
0DTE and 1DTE panels
Same-day and next-day expiry gamma broken out separately from the aggregate. Where the last-hour flow concentrates.
Standard + flow-based estimate
Compare the OI-based GEX against a flow-based estimate that reads actual dealer inventory changes through the session.
Historical GEX
Backtestable historical gamma profiles for every ticker - study how past regimes played out to build conviction on current setups.
GEX percentile regime
Rolling percentile of aggregate gamma to answer "is today extreme or normal?" without eyeballing a chart.
Ticker coverage.
Dedicated GEX views for the tickers below, plus every other ticker with liquid options coverage. Click through to see the GEX profile for a specific name.
For developers
Building a GEX bot, dashboard, or systematic strategy?
Every panel here is available via REST. Strike-level GEX, ranked walls, zero-gamma flip, historical time series, dealer positioning, IV surfaces, and options chain - pipe the data into your Discord alerts, backtester, or trading stack.
Learn how GEX works.
In-depth guides to the mechanics of gamma exposure, dealer positioning, and options expiration.
Common questions.
What is a GEX tool?
A GEX tool visualises the gamma exposure held by options market makers across the strikes of a given underlying. It shows ranked call walls, put walls, the zero-gamma flip level, and how those levels shift through the session. Traders use it to read whether spot is in a pinning regime (positive gamma, mean-reverting) or a cascade regime (negative gamma, trending) and to size positions accordingly.
What tickers does BackQuant cover for GEX?
Equity indexes SPX and NDX, index ETFs like QQQ and SPY, single-name equities including NVDA, AAPL, and other actively-traded options names, plus 100+ crypto assets led by BTC, ETH, SOL, and HYPE. Coverage grows as new panels ship. One subscription covers every ticker.
Is BackQuant a good alternative to SpotGamma?
BackQuant is designed for traders who want SPX and NDX gamma-exposure coverage plus BTC, ETH, and 100+ crypto assets in one subscription. Where SpotGamma focuses on the equity side, BackQuant covers both markets under a single plan and includes a 7-day free trial so you can compare directly against whatever tool you use today. Feature depth (walls, zero-gamma flip, dealer positioning, 0DTE panels, historical GEX) matches on the SPX side.
Is there a GEX bot or GEXbot-style alerting service?
If you're looking for GEX bot functionality - alerts when SPX crosses the zero-gamma flip, when a large wall breaks, or when the flow-based positioning sign changes - BackQuant surfaces those events in the Terminal and exposes the underlying data through a REST API so you can plug alerts into your existing Discord, Telegram, or webhook stack.
Is there a GEX API for developers?
Yes. REST endpoints return strike-level GEX, ranked walls, zero-gamma flip, historical time series, dealer positioning, IV surfaces, and options chain data for every covered ticker. See the /gex-api page for coverage and endpoint details, and the /api-access page for pricing and authentication.
How is BackQuant GEX different from a standard GEX chart?
Standard GEX charts use open interest and assume dealers are net long calls and net short puts. BackQuant offers both the standard OI-based view and a flow-based estimate that reads dealer positioning from actual options flow. The flow-based estimate diverges in high-flow regimes like 0DTE, quad-witching, and CPI sessions - the moments where the standard model is most likely to be wrong.
Do you show 0DTE gamma exposure?
Yes. SPX 0DTE and 1DTE panels are core to the terminal, and the crypto Friday 08:00 UTC daily on Deribit is also covered. 0DTE gamma is where dealer hedging concentrates hardest - you can filter the GEX profile to same-day expiries alongside the aggregate view.
Do you have historical GEX data?
Yes. Historical GEX profiles are available for every ticker so you can backtest signals, study how past regimes played out, and calibrate strategies against real data. The historical endpoints are exposed both in the Terminal UI and via the GEX API.
How often does the GEX data update?
Continuously through the session. Panels reflect new prints as they arrive, fast enough to catch mid-session sign changes in dealer inventory.
How much does the terminal cost?
Terminal Access is $99/month or $990/year (equivalent to $82.50/month). Every plan includes a 7-day free trial and can be cancelled anytime. API access is a separate tier - see the API access page.
Can I try it before subscribing?
Yes. A 7-day free trial gives full terminal access - GEX panels for every covered ticker, dealer positioning, options flow, perps, and market structure. No feature gating during the trial. Cancel any time before the trial ends and you will not be charged.
What payment methods do you accept?
Credit and debit cards, Apple Pay, Google Pay, and PayPal via Stripe. Annual plans can also be paid in crypto (USDC, USDT, DAI, XMR) - open a ticket in Discord.
Try the GEX tool free for 7 days.
Full terminal access. Every ticker. No feature gating. Cancel anytime.