What are 0DTE options?

0DTE (Zero Days to Expiration) options are options contracts that expire on the same day they are traded. These options provide high leverage and are popular for day trading strategies.

What is Gamma Exposure (GEX)?

Gamma Exposure (GEX) measures the market makers' exposure to gamma risk. Positive GEX typically leads to lower volatility as market makers hedge by buying low and selling high, while negative GEX can increase volatility.

How does ΘDTE Toolbox help with options trading?

ΘDTE Toolbox provides real-time options analytics including Greeks exposure, GEX/DEX calculations, options flow data, and AI-powered market insights to help traders make informed decisions in options trading.

Which instruments does ΘDTE Toolbox support?

ΘDTE Toolbox supports major index options including SPY, QQQ, SPX, and other liquid options contracts with comprehensive analytics and real-time data.

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Vol/OI Monitor

LEVEL 1

What is Vol/OI Monitor?

A single strike-by-strike ladder built around one question: where is fresh flow actually landing, and is it buying or selling? Every visible strike gets four readings side by side — Strike, a switchable Greek histogram (GEX, DEX, VEX, or CEX), Volume (put/call), and Open Interest (put/call) — all scaled to the same chain-wide magnitude, so a strike carrying real size looks visibly bigger than one that doesn't.

Where All-in-One Market Levels shows you the walls the whole day has built, Vol/OI Monitor is the motion detector — it watches which strikes are heating up right now, and whether that heat is opening buying pressure or just noise.

Two independent per-strike rank badges do the real work. Speed (amber) flags the fastest-growing strikes by raw volume — pure activity, no sense of direction. Buying pressure (cyan) is aggressor-signed: it separates trades executed near the ask (opening buys) from trades near the bid (closing/selling), and ranks the strikes with the strongest genuine net buying. A put strike ranked here means someone is aggressively buying puts — not just that puts traded a lot.

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The signal is the combination, not either badge alone

Fresh, fast, one-sided buying at a strike that's already in-the-money — pushing further through spot rather than speculating away from it — reads as real conviction forming right at the price. That combination (a filled, solid badge) is the reversion watch. The same rank sitting out-of-the-money is normal positioning, and shown as an outline only.

The Panels

Dealer positioning shifts through the session and the walls migrate with it, so the level you traded this morning may not be the level defending the afternoon.

Five-Minute Tour

The exposure profile concentrates where hedging pressure is deepest, and reading that concentration correctly is what separates structure from noise.

1. What's Being Measured

Probability-weighted scenarios frame the decision: the trigger defines the trade, the distribution defines the size, and the phase defines the timing.

Speed vs Buying Pressure

Dealer positioning shifts through the session and the walls migrate with it, so the level you traded this morning may not be the level defending the afternoon.

Why In-The-Money Is the Flag

The exposure profile concentrates where hedging pressure is deepest, and reading that concentration correctly is what separates structure from noise.

2. The Panels

Probability-weighted scenarios frame the decision: the trigger defines the trade, the distribution defines the size, and the phase defines the timing.

Signal (sidebar, top)

Dealer positioning shifts through the session and the walls migrate with it, so the level you traded this morning may not be the level defending the afternoon.

Positioning

The exposure profile concentrates where hedging pressure is deepest, and reading that concentration correctly is what separates structure from noise.

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Full Guide

LEVEL 1

The complete guide — every panel, workflow and trade rule — unlocks with Level 1 access to this app.