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Scalping
The Net-GEX Regime Filter: The One Number That Decides Fade or Follow
If you check one thing before a 0DTE scalp, check this. The sign of net GEX changes the meaning of every other level on the chart.
NoVo Options Trading · 2026
Every level-based playbook in this journal — wall fades, VWAP rejections, gravity reversions — flips its meaning depending on one thing: the gamma regime. The net-GEX sign is the master switch, and reading it first is the highest-leverage habit a scalper can build.
The filter
Net GEX positive → fade. Dealers are long gamma, hedging dampens moves, so the tape mean-reverts — fade extremes, buy the put wall, sell the call wall, target the middle. Net GEX negative → follow. Dealers are short gamma, hedging amplifies moves, so the tape trends — respect momentum, trade continuation, stop fading. One number, two opposite playbooks.
Positive gamma: fade. Negative gamma: follow. Read the sign first, and every other level tells you the truth instead of a trap.
Why it's the master switch
The same call-wall touch is a short in positive gamma and a breakout in negative. The same VWAP loss is a dip to buy in positive gamma and a trend confirmation in negative. Run a level playbook without checking the regime and you'll be right about the level and wrong about the direction — the most frustrating way to lose. The filter isn't optional context; it's the frame the levels hang on.
How to use it
Make it step one of your pre-trade read: before you look at a single setup, answer “am I fading or following today?” Re-check it through the session, because it can flip intraday — a positive-gamma morning can become a negative-gamma afternoon, and your playbook must flip with it. NoVo surfaces the regime front-and-center on the map for exactly this reason: it's the one read that governs all the others.
More on this: The Vol-Trigger Level: The Other GEX Number Traders Miss
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NoVo is a software tool for market analysis and for executing trades you initiate, not financial advice. This article is general education, not investment advice. Options trading involves substantial risk of loss, up to and including your entire capital. NoVo makes no guarantee of profit, win rate, or performance, and past results do not predict future outcomes. You are responsible for your own broker account, configuration, and trading decisions.