Pre Market · Tuesday, October 20, 2026 · Market Closed

Negative GEX, Bearish Trend Stack, QQQ Gap Down — Sellers Hold the Morning Edge

SPX 7690.73
SPY 765.59 -0.12%
QQQ 715.27 -0.43%
IWM 271.33 +0.02%
NVDA 216.01 -0.50%
TSLA 368.37 +0.08%
AAPL 339.15 -1.11%
MSFT 534.95 +0.27%
GLD 377.56 -0.56%
SLV 51.54
/CL 99.82
/HG 6.58
VIX 18.72
VVIX 106.93
15 min delayed
GAMMA BRIEF AI Generated 2026-10-20

S&P 500 futures are printing +3.87% above their prior settlement, yet that number is misleading: SPY is essentially flat versus Monday's close (-0.12%), and QQQ is gapping down -0.43% into Tuesday's open. The Nasdaq futures tell the real story — /NQ has shed roughly 385 points from its overnight high and is sitting near the bottom of its globex range, suggesting the early bid has already been faded.

Options positioning adds pressure from the other direction. Every major index — SPY, SPX, QQQ, and IWM — carries negative net GEX, meaning dealer hedging amplifies rather than dampens moves. With SPY hugging its put wall at 765 and QQQ sitting well below its 720 call wall, the structural backdrop favors continued weakness unless buyers reclaim those levels at the open.

Full analysis is for subscribers

Start Free Trial View pricing →
GEX Walls — Options Positioning
SPX BEARISH
Call Wall 7710
Put Wall 7700
Max Pain 7725
Net GEX $65.5B
SPY BEARISH
Call Wall 768
Put Wall 765
Max Pain 769
Net GEX $5.6B
QQQ BEARISH
Call Wall 720
Put Wall 700
Max Pain 726
Net GEX $3.8B
IWM BEARISH
Call Wall 275
Put Wall 270
Max Pain 276
Net GEX $2.8B
ⓘ Trend Bias vs Directional Call
The badge shows momentum bias — where price sits relative to VWAP and moving averages right now. The brief's directional call weighs GEX structure, options flow, and macro signals, and may point the opposite direction when a rally runs into a call wall or flow turns bearish.
GEX walls are a snapshot from brief generation — not a live feed.
Got it, don't show again

GEX walls are price levels where dealers hedge aggressively. Price tends to gravitate toward Max Pain and stall near walls.

Stock GEX — Extended
🔒

GEX walls for NVDA, TSLA, AAPL, MSFT, AMZN — Pro subscribers

Upgrade to Pro →
Unusual Options Activity
🔒

Unusual flow analysis for subscribers

Start free trial →
Facts — Draw Your Own Conclusions
→DETERMINISTIC: SPY net GEX: -$5.59B — negative gamma regime across all index products.
→DETERMINISTIC: SPX GEX — Call Wall: 7710, Put Wall: 7700, Net GEX: -$65.53B; SPX pre-market last (7690.73) is already below both walls.
→DETERMINISTIC: QQQ cash open gap: -0.43% (-3.09 pts vs Monday's RTH close of 718.36); pre-market last 715.27.
→DETERMINISTIC: SPY trend bias score: -56, confidence 80% — drivers: below VWAP (767.28), bearish 5m+15m EMAs, LH/LL price structure.
→DETERMINISTIC: IWM trend bias score: -55, confidence 78% — same three-driver bearish stack as SPY.
→DETERMINISTIC: SPY 0DTE volume at 73.2% of total — elevated intraday gamma effects near 765 put wall and 768 call wall.
→DETERMINISTIC: /NQ globex range position: -18% (near session low); shed 384.50 points from overnight high of 29,981 to last print of 29,596.50.
→DETERMINISTIC: AAPL pre-market -1.11% vs prior close; GLD pre-market -0.56% — dual weight/risk-off signal into open.
→SYNTHESIS: SPY pre-market last (765.59) sits only 0.59 above the 765 put wall while net GEX is -$5.59B — negative dealer positioning amplifies any breach of that floor, but no UOA flow above $50M confirms directional intent, leaving conviction solely on structure and trend.

Objective data only. No interpretation. Form your own view.

Key Themes
Negative GEX across all four index products — dealer hedging amplifies movesQQQ cash gap down -0.43% with /NQ fading from globex highsSPX pre-market below both call and put walls — structural breakdown signalAAPL -1.11% pre-market adding weight to Nasdaq complex

Join the GammaBrief Community

Trade ideas, live flow alerts, and member discussion.

Join Discord →
Directional Calls
SPY BEARISH
SPX BEARISH
QQQ BEARISH
IWM NEUTRAL

Get this in your inbox

Pre-market, midday, and post-market briefings before you need them.

Start Free Trial

No credit card required

Recommended Brokers
tastytrade
TT
tastytrade
Commission-free options · Get $100
Get $100 →
Tradier
TR
Tradier
Flat-fee trading + API · 3mo free
Open →
Today's Editions
● Pre-Market 09:00 ET
○ Midday 12:30 ET
○ Post-Market 16:30 ET
Mag 7
AAPL
339.15 -1.11%
MSFT
534.95 +0.27%
NVDA
216.01 -0.50%
AMZN
263.14 +0.26%
GOOG
339.07 -0.32%
META
699.22 -0.88%
TSLA
368.37 +0.08%
Commodities
Gold (GLD)
377.56 -0.56%
Silver (SLV)
51.54 +0.00%
Crude Oil (/CL)
99.82 +0.00%
Copper (/HG)
6.58 +0.00%
Today's Headlines
Which Stocks Are Paying For $4.33 Gas?YahooInflation Is Back. Is A Stock Market Crash Next?YahooHow Do You Invest For A Crash And A Rally?YahooDoes Cash Beat Debt When Markets Turn?YahooCathie Wood’s ARK Now Sees Tesla at $4,400 a Share by 2031YahooWhy Are Nasdaq Futures Falling Premarket? CRWV, NBIS, TSLA, SPCX, MU, ASTS, NFLX, SLS Stocks In FocuYahoo