GEX as Support and Resistance: Stacked Nodes and Magnet Zones

Traditional support and resistance relies on where price has been. GEX-based support and resistance tells you where dealer hedging will create mechanical buying and selling pressure right now. These are fundamentally different signals, and learning to read them on the heatmap transforms how you plan trades.

How GEX Creates Support

A GEX support level forms when positive gamma is concentrated below current price. At these strikes, market makers are long gamma from put sales. As price drops toward the level, dealers buy the underlying to hedge — creating mechanical buying pressure that supports price.

The stronger the gamma concentration, the stronger the support. A thick cluster of positive gamma acts like a floor — price may touch it, even briefly penetrate it, but the buying pressure pulls it back.

How GEX Creates Resistance

GEX resistance forms when positive gamma is concentrated above current price. At these strikes, dealers are long gamma from call sales. As price rises toward the level, dealers sell the underlying — creating mechanical selling pressure that caps the move.

On StrikeGEX, these appear as bright yellow zones above current price. The gamma wall — the highest positive gamma strike above price — is the primary resistance level.

Stacked Nodes: Layered Defense

A single GEX level can break. But when multiple nodes stack close together, they form a layered defense that's much harder to penetrate. On the heatmap, this looks like a cluster of bright levels packed within a few strikes of each other.

Contrast this with an isolated node — a single bright level with air pockets on both sides. One strong move can overwhelm a single node's hedging, but it takes sustained, heavy flow to break through a stacked zone.

Magnet Zones

While support and resistance repel price, magnet zones attract it. The king node is the primary magnet — the strike with the highest absolute gamma exposure. Price gravitates toward the king node because dealer hedging at this level is at maximum intensity, pulling price from both directions.

But magnet behavior isn't limited to the king node. Any concentration of gamma can act as a magnet if it's close enough to current price. On StrikeGEX, look for where the brightest levels cluster. That cluster is the gravitational center for the session.

Magnet vs. Wall

• Magnet (king node): Price is drawn toward it. Expect price to spend time near this level, especially in positive gamma environments.
• Wall (gamma wall / put wall): Price is rejected from it. Expect price to approach, test, and reverse from these levels.
• The difference: The king node is usually near current price. Walls are at the extremes. The king attracts; the walls contain.

Tug-of-War Zones

Sometimes the heatmap shows nearly equal gamma concentration on both sides of current price. This creates a tug-of-war — neither the buyers' hedging nor the sellers' hedging has a clear advantage.

Tug-of-war zones produce:

• Choppy, range-bound action
• Low follow-through on breakout attempts
• Mean-reversion to the center of the zone

These are difficult environments for directional trades. Consider range-based strategies (selling the extremes, buying the center) or simply waiting for one side to win — which shows up as one side of the heatmap brightening while the other fades.

How GEX S/R Differs from Price-Based S/R

• GEX levels are forward-looking. They exist because of current open interest, not past price action. A GEX support level at 5700 works even if price has never traded there before.
• GEX levels are mechanical. They create actual buying and selling flow. Price-based support is psychological — traders remember a level and react to it. GEX levels force dealers to act.
• GEX levels change. As options are opened, closed, and expire, the landscape shifts. A level that was strong at 10 AM may not exist by 2 PM. Refresh your read throughout the session.
• GEX levels and price levels can align. When a GEX node sits at a prior support/resistance level, that's a high-confluence zone. Both mechanical and psychological forces converge.