CPI day selloff: SPY shed nearly 14 points from open to close on massive bearish 0DTE flow

GAMMA BRIEF AI Generated 2026-06-10

Wednesday looked like a relief day on paper — headline CPI came in exactly at estimate (4.2% YoY) and core CPI actually undershot (0.2% MoM vs 0.3% estimate). Markets opened higher. Then they sold everything anyway. SPY opened at 733.39, tagged a session high of 738.38, and closed near the day's low at 724.89 — a nearly 14-point round-trip that ended with all three major ETFs printing at or near their session lows.

The options tape saw it coming. Three separate bearish 0DTE sweeps on SPX and SPY — totaling over $990M in premium — printed during the session, the largest being a $415M SPX put sweep at the 7300 strike with vol/OI of 30.8x. VIX closed at 22.22, up 5.31% on the day, while NYSE breadth registered an A/D ratio of just 0.66 with TRIN spiking to 4.51 — a classic forced-liquidation signal. The soft core print bought the bulls roughly 90 minutes. Then something else took over.

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 7400

Put Wall 7000

Max Pain 7125

Net GEX $54.0B

SPY BEARISH

Call Wall 730

Put Wall 720

Max Pain 734

Net GEX $16.0B

QQQ CHOP

Call Wall 700

Put Wall 690

Max Pain 700

Net GEX $4.9B

IWM BEARISH

Call Wall 290

Put Wall 275

Max Pain 281

Net GEX $2.4B

ⓘ 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

→SPY net GEX: -$16.04B — negative gamma regime; SPX net GEX: -$54.04B.

→SPY OHLC: O 733.39 / H 738.38 / L 724.83 / C 724.89 — closed 6 cents off session low.

→SPX 0DTE put sweep at 7300 strike: $415M premium, vol/OI 30.8x — sentiment: bearish_bet.

→SPY 0DTE put sweep at 730 strike: $296M premium, vol/OI 58.9x — sentiment: bearish_bet.

→VIX closed 22.22 (+5.31%); VVIX closed 108.16 (+3.59%) — elevated vol regime confirmed.

→NYSE A/D ratio 0.66, net -548, TRIN 4.51 — extreme TRIN indicates forced liquidation.

→Core CPI MoM actual 0.2% vs estimate 0.3% (undershoot); headline CPI YoY 4.2% — three-year high.

→Synthesis: Core CPI undershoot should have been constructive for equities, yet SPY closed near session lows with TRIN 4.51 and $990M+ in bearish 0DTE sweeps — macro relief overridden by flow and risk-off positioning, consistent with Iran conflict headline disruption and negative-gamma amplification.

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

Key Themes

Negative-gamma amplification — $54B SPX net short gamma drove open-to-close trending selloffBearish 0DTE institutional flow — ~$1B in SPX/SPY put sweeps with extreme vol/OI ratiosStagflation narrative — CPI YoY 4.2% three-year high offsets core undershoot; Iran conflict adds risk premiumTRIN 4.51 forced liquidation signal — breadth collapse confirms institutional de-risking not orderly selling

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Directional Calls

SPY BEARISH

QQQ BEARISH

IWM NEUTRAL