0DTE and GEX Decision Tools Compared

The honest way to compare these tools

Most tools in this category do the same core thing: they estimate dealer options positioning (gamma exposure, or GEX) and draw it as levels - a call wall here, a gamma flip there, net GEX for the day. The useful question is not whose GEX number is right. It is two others.

Map, or decision? Some tools hand you the map and leave the reading to you: here are the walls, here is net GEX, you decide what it means. Others put a committed read on top of the map - a single labeled market-structure state, updated as the book changes through the session. That is the axis this page cares about most, because it is what separates a display from a decision layer.

Who shows their work? Dealer positioning is not directly observable. Every tool here builds its GEX from open interest and flow under its own assumptions, and none of them - zdte.ai included - publishes an independently measured accuracy figure for those estimates. The fair question is not who is most accurate (nobody in this category can prove that) but who explains their method and lets you check it.

Table notes

Pricing was observed on each provider's public marketing pages on 2026-08-25; figures are monthly, in USD. Verify current pricing with the provider.

"Committed regime read" means whether the tool outputs a single labeled market-structure state on top of the raw levels, versus leaving interpretation entirely to you. Based on public product descriptions as of 2026-08-25; verify with each provider.

"Verify with provider (UNVERIFIED)" means we did not find a public, dated source confirming that item for that tool at publish time. It is not a claim that the feature is absent.

Also in this category: Quanted (published tiers around $299 / $399, observed 2026-08-25) and VolSignals / VS3D (pricing UNVERIFIED - the provider's FAQ referenced a future tier around $200/mo). We left both out of the main table pending confirmation.

The tools, one paragraph each

SpotGamma. One of the most established dealer-positioning services, and the name that popularized much of the gamma vocabulary retail traders now use. It publishes daily levels across major indices and a broad set of single stocks, runs an active subscriber community, and produces regular written commentary. Consumer tiers observed 2026-08-25 were Essential $99 and Alpha $299, with a discounted first month ($17-49). It is a strong, proven choice for swing and index traders who want pre-computed levels across many tickers each morning.

MenthorQ. Quant levels (GEX, key strikes) across asset classes - equities, indices, futures, and FX - with a free card-free tier and a free TradingView indicator that brings levels into charts traders already use. Premium was observed at ~$129/mo (~$39 first month) on 2026-08-25. It fits multi-asset traders who want positioning-derived levels inside their existing charting workflow, and anyone who wants to sample the free layer before paying.

OptionsDepth. Focused on options dealer positioning and GEX depth. Tiers observed 2026-08-25 were Pro $199 and Pro Max $249. It suits traders who want a depth-oriented dealer-positioning view and are comfortable at a higher price point. Coverage, cadence, and API availability were not verifiable from a public dated source at publish time - confirm these directly with the provider.

Unusual Whales. One of the best-known options-flow platforms: real-time notable-trade alerts across thousands of tickers, market-wide dashboards, GEX as part of a broad feature set, and widely-cited data journalism. A free 15-minute-delayed tier lets you sample it, with paid tiers observed 2026-08-25 at $50, $75, and $120. It is a strong choice for traders who want to discover unusual activity anywhere in the market and value breadth over single-market depth.

zdte.ai (that is us). One job, done continuously: a live read of the SPX same-day (0DTE) options complex - dealer positioning, gamma structure, call and put walls, and pins - plus the piece most of this category leaves to you, a committed dealer-regime label (CHOP / TREND / BREAKOUT) with a confidence read, recomputed about every 10 seconds during market hours. It is deliberately narrow (SPX only) and deliberately programmatic: the same $100/mo key serves both a web read and an MCP endpoint plus a REST v1 API, so an agent or a script can pull the structure directly - programmatic access that many consumer dashboards in this list do not offer to individual subscribers. Around it sits a free public layer: forensic research papers built from our own recorded telemetry, a Field Guide, and a glossary. All positioning figures are proprietary estimates and are labeled as such, and we publish no track record.

Who each one is for

SpotGamma fits traders who follow several tickers and want established, pre-computed levels plus commentary and community each morning.

MenthorQ fits traders who work across asset classes and want positioning levels inside their existing charts, or want a free tier and free indicator to start.

OptionsDepth fits traders who want a depth-focused dealer-positioning view and for whom the higher tier fits the budget.

Unusual Whales fits traders who want market-wide flow discovery and breadth, with a free delayed tier to sample first.

zdte.ai fits traders whose day is SPX 0DTE, who want the structure read continuously with a committed regime label rather than raw levels alone, and who want that read available programmatically over an API or MCP.

Many serious 0DTE traders pair one breadth tool with one depth tool rather than picking a single winner. Whatever you choose, keep the shared caveat in view: dealer-positioning numbers are estimates, no tool in this category can prove its accuracy, and all of this is informational and educational, not investment advice.

Frequently asked questions