Monthly OpEx morning: SPY above call wall, QQQ lags, pin risk dominates

GAMMA BRIEF AI Generated 2026-10-16

SPY is gapping up a slim +0.18% to 773.21 at the open — already sitting above its 772 call wall — while QQQ is gapping down -0.23% to 726.35 and fading from its overnight high of 730.21. The divergence between large-caps and tech is the sharpest cross-asset signal this morning.

Today is monthly options expiration, and the gravitational pull of max pain levels is real. SPY's max pain sits at 770, a full 3.21 points below the current pre-market print, while QQQ's max pain at 735 is actually above its current price of 726.35 — meaning QQQ has room to drift higher into the close if the pin dynamic activates, while SPY may be stretched on the upside heading into the open.

Dealer positioning shows a clear regime shift as options market makers adjust hedges across the curve. The put-call skew has compressed significantly, suggesting institutional players are reducing downside protection.

Watch the key level closely at open — it sits exactly at the intersection of the GEX zero line and overnight VWAP. A clean break above opens the path to the call wall; rejection sends us back toward the put wall.

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GEX Walls — Options Positioning

SPX BULLISH

Call Wall 7750

Put Wall 7700

Max Pain 7710

Net GEX $32.2B

SPY BULLISH

Call Wall 772

Put Wall 770

Max Pain 770

Net GEX $5.5B

QQQ CHOP

Call Wall 730

Put Wall 725

Max Pain 735

Net GEX $9.6B

IWM BULLISH

Call Wall 277

Put Wall 275

Max Pain 280

Net GEX $4.6B

ⓘ 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.

Stock GEX — Extended

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Unusual Options Activity

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Facts — Draw Your Own Conclusions

→SPY net GEX: -$5.46B — negative gamma regime; dealers amplify moves.

→SPX GEX — Call Wall: 7750, Put Wall: 7700, Max Pain: 7710, Net GEX: -$32.15B.

→QQQ net GEX: -$9.65B — most negative of the four instruments; call wall 730, put wall 725, max pain 735.

→IWM trend bias: score 43, confidence 61%, drivers: above VWAP (273.64), bull EMA alignment (5m+15m), mixed price structure.

→SPY 0DTE volume: 68.7% of total — elevated intraday gamma sensitivity around key strikes.

→NYSE A/D ratio: 22 advancing vs 690 declining (ratio 0.03, net -668) — extremely narrow breadth despite index-level gap-up.

→VIX: 15.95 (+0.06%), VVIX: 92.57 — both in normal volatility regime, no spike in vol-of-vol.

→TSLA pre-market: +3.14% to 373.81; AAPL pre-market: +1.89% to 348.45 — mega-cap names masking weak breadth.

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

Key Themes

Monthly OpEx pin — SPY/SPX max pain gravityQQQ call wall rejection at 730IWM relative strength vs weak breadthNegative GEX regime across all four instruments

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Directional Calls

SPY RANGE-BOUND

SPX RANGE-BOUND

QQQ BEARISH

IWM BULLISH