Updated October 27, 2026, 3:55 PM ET
▼ NEGATIVE GAMMA
Negative gamma — spot below the 7729 flip
Momentum over mean-reversion; dealer hedging amplifies moves.
Net GEX -19B → -1BSpot +35 ptsspot 7726.68 · band ±10% · 2026-10-27 19:55Z
Net GEX (all strikes)
-1.48 B$
per 1% move
Gamma flip (zero-γ)
7729
spot below → negative
Call wall (max +GEX)
7800
upside magnet
Put wall (max −GEX)
7650
downside rail
Short-dated γ
0-1DTE 45%
≤7d 81% · intraday-heavy
Liquidity / fragility
DEEP
VIX term structure gauge
VIX / VIX3M
17.55 / 19.55
term 0.898
GEX by strike — M$/1% (band ±10%)
Worth noting. Net GEX moved +18B to -1.5B — the negative-gamma pocket is shallowing.
Into the close
MOC imbalance: NYSE prints ~3:50 ET · Nasdaq 3:55–4:00 ET
- Negative gamma: dealers chase. A same-direction MOC imbalance can ACCELERATE into the bell — buy-imbal = chase up, sell-imbal = air-pocket.
- 0DTE-heavy tape: charm pin/rip is stronger — the last 30 min can decide the day.
- Size matters: an aggregate MOC over ~$1–2B is a real tide; it can flip 2:50→3:00.
Vol-control flow (estimate)
Realized vol (20d/60d blend): 0.0% · last session +0.00% · AUM $215B | target 10% | max 2.0x | cadence d/w/m 35/30/35%
| 1d % chg | Est flow $bn |
|---|
| -3.0% | -54.19 |
| -2.0% | -28.57 |
| -1.0% | -5.73 |
| +0.0% | +4.05 |
| +1.0% | -5.32 |
| +2.0% | -27.24 |
| +3.0% | -51.68 |
| From a -2% day | Cumulative $bn |
|---|
| day 1 | -12.19 |
| day 5 | -20.95 |
| day 10 | -23.33 |
| day 21 | -28.57 |
Estimate — trust the shape and day-over-day change, not the absolute level.