StrikeGEX
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Free guides on gamma exposure and how to use GEX levels for day trading.

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Fundamentals

What Is Gamma Exposure (GEX) and Why Day Traders Need It

Understand how market maker hedging creates predictable support, resistance, and magnet levels that traditional TA misses.

Quick Start

Reading the StrikeGEX Heatmap in 60 Seconds

A quick visual guide to reading the StrikeGEX heatmap — king node, gamma walls, put walls, and dealer positioning at a glance.

Market Mechanics

How Dealers Hedge (and Why It Creates the Levels You Trade)

Market makers don't bet on direction — they hedge. That hedging creates the support and resistance levels that move your 0DTE trades.

Key Levels

Key Levels

What Is the King Node? Dealer Gamma Levels Explained

King Node, call wall, put wall, and gamma exposure explained in plain terms — what these dealer-positioning levels mean and how 0DTE traders use them.

Key Levels

Gamma Walls: Why Price Bounces Off Certain Levels

Learn how gamma walls create invisible support and resistance levels that stop price in its tracks — and how to trade them.

Key Levels

GEX as Support and Resistance: Stacked Nodes and Magnet Zones

How concentrated gamma exposure creates real support and resistance levels through dealer hedging flows, and how stacked nodes form magnet zones.

Key Levels

Air Pockets: Why Price Accelerates Between GEX Levels

Low-gamma zones between nodes create acceleration paths where price moves fast. Learn to spot air pockets and use them for entries and targets.

Advanced Concepts

Advanced

Gamma Regimes, Node Types, and the Setups That Actually Work

Long gamma vs short gamma, the six node types, three high-probability setups, and a pre-trade checklist for reading the GEX map like a dealer.

Advanced

Node Lifecycle: Fresh, Tested, and Decaying GEX Levels

GEX nodes aren't static. Learn how they form, get tested, and decay — and why fresh nodes are the highest-probability trading setups.

Advanced

Negative GEX Zones: Reversals, Squeezes, and Pit Setups

When net gamma flips negative, the rules change. Understand dealer behavior in negative GEX and how to trade the pit setup.

Advanced

Rolling Floors and Ceilings: How Dealer Repositioning Signals Trends

When GEX nodes shift intraday, they signal trend direction. Learn to read rolling floors and ceilings for directional bias.

Options Greeks

Fundamentals

The Options Greeks: What Every 0DTE Trader Should Know

Delta, gamma, theta, and vega — the four forces that drive option pricing and dealer hedging behavior on expiration day.

Greeks

Delta: How Directional Exposure Drives Dealer Flow

Delta determines how much dealers must hedge per dollar of price movement. Understand the greek that creates the flows you trade.

Greeks

Theta: The Silent Tax on Every 0DTE Trade

Time decay accelerates on expiration day. Learn how theta shapes dealer behavior and why it matters for your entry timing.

Greeks

Vega: How Volatility Shapes the Trading Session

Implied volatility drives option premiums and dealer exposure. Understand the morning vol crush and when vol expansion changes the game.

Execution

Execution

The Execution Framework: Entries, Exits, and Risk Using GEX Levels

A practical framework for using GEX levels to time entries, set targets, define risk, and avoid low-probability setups.