Wednesday had the strongest volatility-dampening reading of the week and the largest single scheduled risk of the week, four hours apart. Net gamma exposure (GEX) was +$5.6B. CPI was at 8:30 AM ET. Holding both of those facts at once is the entire discipline.
Each point is that morning’s own brief. Briefs captured at different times of day report slightly different zero-gamma values — the Aug 12 brief lists the prior day at $715.26 against the Aug 11 brief’s own $715.10. Both readings are real; neither is smoothed here. Source: QQQ Gamma & Short-Volatility pre-open brief, transcribed from the InsiderFinance and Unusual Whales panels captured that morning. Values the panels did not expose are omitted rather than estimated.
Spot went $723.05, $722.81, $723.20 across three sessions — call it unchanged. The gamma flip level went $707.18, $715.10, $716.32. The market did not move; the floor came up to meet it. On Aug 10 there were 15.87 points between price and the line where dealer hedging stops dampening. By Aug 12 there were 6.88.
This is the part of gamma structure that is easy to miss, because nothing on a price chart shows it. The position that felt safe on Monday sat above a much thinner cushion on Wednesday, and no candle told you.
| Metric | Aug 11 | Aug 12 | Change |
|---|---|---|---|
| Spot | $722.91 | $723.20 | +$0.29 (+0.04%) |
| Net GEX | +$4.05B | +$5.60B | +$1.55B (+38.3%) |
| Call GEX | +$13.9B | +$15.5B | +$1.6B (+11.5%) |
| Put GEX | -$9.9B | -$9.9B | ~unchanged |
| Total GEX | $23.8B | $25.5B | +$1.7B (+7.1%) |
| Zero gamma | $715.26 | $716.32 | +$1.06 (+0.15%) |
| Call / put wall | 730 / 660 | 730 / 660 | unchanged |
The signals read STRONG dampening, a STRONG $730 magnet, moderate support at $716.32, and a bullish-squeeze score of 44/100 — the highest of the week. Nasdaq-100 futures were about +0.65% at 7:00 AM ET, VIX near 15.4, and the CPI consensus cited by Reuters was +0.1% m/m and +3.4% y/y.
The heatmap exposes net GEX by expiration, not separate call and put gamma at every strike, so negative bars are negative net GEX. On the live panel the largest nearby positive nodes were $730 at $1.03B, $735 at $799M, $725 at $571M, $727 at $178M and $726 at $173M. Source: QQQ Gamma & Short-Volatility pre-open brief, transcribed from the InsiderFinance and Unusual Whales panels captured that morning. Values the panels did not expose are omitted rather than estimated.
The 0DTE profile had shifted. On Tuesday the sign flip sat between $723 and $722; on Wednesday positive gamma extended down to $721, with the first negative pocket at $720 (-$29.2M) and the heavy one at $715 (-$87.1M). The concentration moved too: $725 carried +$420.0M and $724 carried +$266.5M — both larger than the $730 wall’s own 0DTE figure of +$162.9M.
That is a pin sitting directly above spot. It is also, mechanically, the reason a $720 short strike was comfortable and a $715 short strike was comfortable for a different reason — one sits above the negative pockets, the other sits below where dealers stop defending.
That paragraph is the thesis of the whole week in one place: less risk than the zeros, more profit than the strangles, less buying power than either. Smaller versions of the same spread were dropped across other accounts, with a stated possibility of a $100K gain in total across all of them.
The large-capital strangle was left to earn, with one condition attached — roll the topside if and when $730 was breached. The wall was noted as over $1 billion by then.
Half the spread closed for 63% of the available profit. One gamma trade, 46% on the 727 calls. Note which of those two lines is the larger number in dollars, and which one is the one that gets talked about.
The highest-risk window was 8:30 to 10:00 AM ET, and the mechanics are worth stating precisely: positive gamma suppresses ordinary intraday movement, but it does not prevent a macro gap through a wall. A CPI surprise that drove yields sharply higher could overwhelm $725 and $730 and force a fast test of $720, then $716.32. A benign print with stable yields left the clean path to $725, $730 and possibly $735.
VIX in the mid-teens with August VIX futures above spot said the same thing from the volatility side: calm now, persistent forward event premium. Short volatility should be sized for jump risk, not sized as though the positive-gamma regime removed it.
And the event stack did not stop at CPI. Cisco reported after the close (roughly 1.75% NDX weight, about ±7% priced by Friday); Applied Materials was due after Thursday’s close on the same day as PPI. CoreWeave was up about 18% premarket and Super Micro about 9% — AI-infrastructure strength feeding positive tech beta straight into the print.
+$5.6B, up $1.55B (+38.3%) from the prior brief — the highest reading of the four-day series. Call GEX was +$15.5B, put GEX -$9.9B, total GEX $25.5B.
Because the cushion is the distance between the two. Across Aug 10-12 spot went $723.05, $722.81, $723.20 — effectively unchanged — while zero gamma climbed $707.18, $715.10, $716.32. The buffer beneath the market fell from about 16 points to under 7 without any price move to warn you.
Down, or with explicit wings. Dealer gamma damps continuous intraday movement; it does not act on a gap. The stated rule for the day was to avoid adding size immediately before the release and to treat a sustained break below $716.32 as a regime change rather than a dip.
Anatomy of a Gamma Week — all four parts, plus the week seen whole.