Post Market · Tuesday, October 13, 2026 · Market Closed

SPX clears its call wall; SPY flat, QQQ lags, small caps fade into close

SPX 7805.45 +1.71%
SPY 777.94 -0.02%
QQQ 743.21 -0.38%
IWM 276.85 -0.38%
NVDA 229.01 +1.19%
TSLA 374.39 -0.96%
AAPL 340.57 -0.12%
MSFT 543.34 +0.40%
GLD 381.29 -0.23%
SLV 53.42 -1.72%
/CL 94.89
/HG 6.73
VIX 15.27 -0.97%
VVIX 85.38 -0.11%
15 min delayed
GAMMA BRIEF AI Generated 2026-10-13

Tuesday's session delivered a split tape: SPX printed +1.71% and finished above its 7800 call wall, while SPY closed essentially unchanged at 777.94, QQQ shed 38 basis points, and IWM dropped 38 basis points. The divergence between the index-level SPX print and the ETF complex is the central puzzle — and the options market had an early read on it, with a $105M SPX 0DTE call sweep at 7800 landing at 9:01 ET, right at the opening gun.

Bank earnings set the tone — Goldman Sachs beat on equities revenue, UnitedHealth raised full-year guidance — but the follow-through was selective. Mega-cap tech provided ballast while crypto-adjacent names cratered (Cipher Digital -14%), and TRIN closed at 1.97, flagging distribution beneath a headline that looks calmer than it was. Wednesday's session opens with a complicated positioning map: SPX above its call wall, SPY sandwiched between walls, QQQ in negative GEX territory, and VIX at 15.27 — subdued but not complacent.

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GEX Walls — Options Positioning
SPX CHOP
Call Wall 7800
Put Wall 7750
Max Pain 7765
Net GEX +$26.3B
SPY CHOP
Call Wall 780
Put Wall 777
Max Pain 772
Net GEX +$2.0B
QQQ BULLISH
Call Wall 760
Put Wall 740
Max Pain 745
Net GEX $5.1B
IWM CHOP
Call Wall 280
Put Wall 275
Max Pain 282
Net GEX $4.2B
ⓘ Trend Bias vs Directional Call
The badge shows momentum bias — where price sits relative to VWAP and moving averages right now. The brief's lean weighs GEX structure, options flow, and macro signals, and may point the opposite direction when flow or positioning disagrees with the tape.
GEX walls are a snapshot from brief generation — not a live feed.
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GEX walls are price levels where dealers hedge aggressively. Price tends to gravitate toward Max Pain and stall near walls.

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Facts — Draw Your Own Conclusions
→SPY net GEX: +$1.98B — positive gamma, thin containment between 777 put wall and 780 call wall.
→SPX net GEX: +$26.30B — call wall 7800, put wall 7750; SPX closed at 7805.45, above call wall.
→QQQ net GEX: -$5.13B — negative gamma regime; put wall 740, call wall 760, max pain 745.
→IWM net GEX: -$4.18B — negative gamma regime; session low 275.69 breached 275 put wall intraday; closed at 276.85.
→SPX 0DTE call sweeps at open: $105M at 7800 strike (49.2x vol/OI) and $78M at 7795 strike (40.4x vol/OI) — both flagged bullish_bet, both resolved in-the-money at close.
→QQQ 0DTE call sweep at 742 strike: $98M premium, 1137.3x vol/OI at 09:37 ET — bullish_bet; QQQ closed at 743.21.
→NYSE TRIN: 1.97 — elevated sell-side pressure in breadth despite flat SPY headline; A/D ratio only 1.22.
→SYNTHESIS: SPX +1.71% above its call wall vs. SPY -0.02% and QQQ/IWM both -0.38% signals large-cap index concentration, not broad market strength — the +$26.30B SPX net GEX and 0DTE sweep flow aligned with price; ETF negative GEX (-$5.13B QQQ, -$4.18B IWM) implies amplified moves Wednesday if a catalyst triggers.

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

Key Themes
SPX/SPY divergence — index above call wall, ETF complex flat0DTE sweep cluster at open resolved bullish for SPX and QQQNegative GEX in QQQ and IWM — amplification risk WednesdayTRIN 1.97 flags breadth deterioration beneath headline calm

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Directional Calls (previous method)
SPY NEUTRAL
SPX BULLISH
QQQ BULLISH
IWM BEARISH

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