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 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.
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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
SPY NEUTRAL
SPX BULLISH
QQQ BULLISH
IWM BEARISH

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