HD Gamma Exposure (GEX) — Flip, Call Wall, Put Wall & Max Pain | AlgoX Trading
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HD Gamma Exposure (GEX)

The HD dealer-gamma map — zero-gamma flip, call wall, put wall and max pain, off the live options chain.
HD is negative gamma
Spot
$332.75
-1.63%
Gamma regime
Negative
trends / amplifies
Zero-gamma flip
regime line
Call wall
370
upside magnet
Put wall
330
downside level
Max pain
337.5
pins into expiry
Expected move
±$5.17
±1.6%
ATM IV
42%
implied vol

HD net dealer gamma by strike

Positive γ (pin)Negative γ (accelerant)FlipSpot
SPOT 332.75365362.5360357.5355352.5350347.5345342.5340337.5335332.5330 ▼327.5325322.5320317.5315312.5310307.5

Net gamma exposure by strike ($M per 1% move) · estimated from the HD options chain (Polygon).

Today's HD gamma read

As of the latest session, HD is trading at $332.75 (-1.63% on the day). Net dealer gamma is negative, with the zero-gamma flip near —. The call wall sits at 370 (upside magnet / resistance) and the put wall at 330 (downside level). Max pain is 337.5, and the options market is pricing a 1-sigma expected move of about ±1.6% (ATM IV 42%).

HD is in negative gamma. Dealers are net short gamma — they chase the move (buy strength, sell weakness), which amplifies volatility. Moves trend and extend, and the 330 put wall is a through-level, not a floor. It only calms on an accepted reclaim of the flip.

Want it interactive? Open HD on the live gamma map → · new to this? What is GEX →

HD gamma — FAQ

Is HD in positive or negative gamma right now?

HD is currently in negative gamma, with the zero-gamma flip near the current level. Negative gamma means dealers amplify moves — a trending, more volatile tape where dips and rips extend.

What is HD's zero-gamma flip level?

The zero-gamma flip is the price where HD's net dealer gamma crosses zero — above it price tends to pin, below it it tends to trend. See HD's live flip on the free gamma map.

What are HD's call wall and put wall?

HD's call wall (370) is a magnet and resistance; the put wall (330) is support in positive gamma but a through-level once price is below the flip.

What is HD max pain?

HD's max pain is 337.5 — the strike where the most options expire worthless. In a positive-gamma tape, price often gets drawn toward max pain into expiration.

What is gamma exposure (GEX)?

Gamma exposure is a map of where option dealers are forced to hedge. Positive GEX = dealers sell strength / buy weakness (suppresses volatility, pins price). Negative GEX = dealers chase the move (amplifies volatility, trends). It tells you the character of the tape, not the direction. Full GEX guide →

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Estimated from the HD options chain (Polygon) · gamma shifts intraday · educational, not financial advice · options carry substantial risk.