Learn
What Dealers Know.
Now You Do Too.
Eight concepts. Zero fluff. Everything you need to read GEX like a pro.
01
Options Move Markets Now
0DTE volume exploded. Options don't just react to the underlying anymore — they move it. If you trade SPX, ES, or SPY, the options chain is the signal. Ignore it at your own risk.
02
The Middleman
You buy calls. A market maker sells them. They don't have an opinion on direction — they accumulate the other side of every trade across thousands of strikes. Their job is to stay neutral. That neutrality has consequences.
03
Open Interest Lies
Five contracts of open interest. But the market maker could hold 0, +5, or -5. Same OI, 200% discrepancy. Public data can't tell you which. You need exchange-tagged positional data. That's what we use.
04
Why MMs Move Markets
Market makers hedge immediately — zero directional exposure. But delta changes constantly, so they rehedge continuously. Every rehedge is real buying or selling pressure in the underlying. Thousands of contracts, all day long.
05
Gamma Is Gravity
Positive gamma: MMs buy dips and sell rips. Stabilizing. Like climbing a mountain — gravity pulls you back to the peak. Negative gamma: the mountain becomes a cliff. Moves accelerate. Small pushes become avalanches.
06
Charm Is Wind
Charm is drift over time. Positive charm pushes price down — suppressive, like wind in your face. Negative charm lifts it — supportive, wind at your back. Don't look for longs in suppressive charm. Don't fight the drift.
07
The Flip Changes Everything
Crossing from positive to negative gamma is a regime change. Brakes become a gas pedal. The market goes from self-correcting to self-reinforcing. Where the flip is — that's the edge.
08
Gamma + Charm = Your Edge
Gamma tells you how the market reacts to price. Charm tells you where it drifts over time. Combined: positive gamma with supportive charm means range-bound and rising. Negative gamma with suppressive charm means fast falling.
Theory Is Great.
Data Is Better.
Everything you just learned — live, every minute, from official CBOE data.