US-Iran euphoria fades at open; SPY hugs call wall with mixed internals

GAMMA BRIEF AI Generated 2026-06-16

Monday's sharp rally on US-Iran deal optimism carried SPY to yesterday's high of 756.68, but this morning the index is effectively flat against yesterday's close — pre-market last of 754.37 vs prior RTH close of ~754.37. Overnight futures climbed as high as 7648.75 on /ES before fading, and /NQ is now drifting lower heading into the open, down 33.50 points in the last 25 minutes of pre-market trade.

The key tension today is simple: SPY is sitting 0.63 below the 755 call wall with 71.2% of yesterday's SPY volume in 0DTE contracts — meaning gamma effects near that strike will be intense. NYSE breadth is catastrophically one-sided at 26 advancers vs 1,225 decliners (A/D ratio 0.02) in the available pre-market read, and the trend bias scores are split, with SPY and IWM bearish while QQQ shows a tentative bullish lean. The relief rally may already be priced in.

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 BEARISH

Call Wall 7600

Put Wall 7550

Max Pain 7125

Net GEX +$71.2B

SPY BEARISH

Call Wall 755

Put Wall 730

Max Pain 730

Net GEX +$8.5B

QQQ BULLISH

Call Wall 750

Put Wall 700

Max Pain 697

Net GEX +$4.8B

IWM BEARISH

Call Wall 295

Put Wall 290

Max Pain 289

Net GEX $0.0B

ⓘ 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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Unusual Options Activity

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Facts — Draw Your Own Conclusions

→DETERMINISTIC: SPY cash open gap = -0.01 pts (-0.00%) vs prior RTH close — effectively flat open.

→DETERMINISTIC: SPY net GEX +$8.47B; SPX net GEX +$71.16B — strongly positive gamma regime.

→DETERMINISTIC: IWM net GEX -$0.05B — near-zero, effectively ungamma'd; IWM last (295.10) sits +0.10 above call wall (295.0).

→DETERMINISTIC: SPY last (754.37) is 0.63 below call wall (755.0); prior RTH high (756.68) was +1.68 above call wall — failed to hold above.

→DETERMINISTIC: NYSE A/D ratio 0.02 (26 advancers / 1,225 decliners), TRIN 1.22 — pre-market tape quality narrow with selling pressure lean.

→DETERMINISTIC: SPY 0DTE volume at 71.2% of total — elevated gamma amplification expected near 755 call wall intraday.

→DETERMINISTIC: VIX 16.13 (-0.06%), VVIX 87.58 (+0.00%) — vol regime stable, no expansion or compression signal.

→SYNTHESIS: QQQ shows bullish VWAP/EMA bias (score +33) but only 47% confidence with a 'lower highs' price structure flagged — trend bias and price structure conflict; QQQ bullish call is the least reliable of the three signals.

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

Key Themes

Post-Iran-deal euphoria digested; flat cash open after prior RTH surgeSPY call wall at 755 acting as ceiling — failed breakout on prior RTH highIWM near-zero GEX most vulnerable to directional follow-through71.2% 0DTE SPY volume — gamma amplification concentrated near 755

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Directional Calls

SPY BEARISH

QQQ NEUTRAL

IWM BEARISH