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NY Close Recap

Oil spike and Iran jitters knock S&P off record highs, close weak on rising yields

Monday, August 17, 2026 · how the US session actually resolved · bias: risk-off

Stocks slid into the close as rising oil and long-end yields overwhelmed a resilient AI-capex bid, sending the S&P 500 to 7,745.06, down 0.52%, with the Dow off 0.51% and Nasdaq down 0.32%.

The move was macro, not micro: WTI jumped over 3% toward $85 and Brent settled near $91 on fading hopes for an Iran de-escalation deal, reviving talk the Fed could still hike before year-end. Thirty-year yields pushed to their highest since 2007, dragging bonds and stocks lower together. VIX popped over 6% to 15.19, a clean risk-off tell even with the index still just off Thursday's record. Breadth was poor — barely 150 names green — but semis and select energy names bucked the tape, and tech remains the standout leader for the month even after today's fade. Nike was a standout laggard, extending a multi-year low as consumer-discretionary names took the brunt of the damage alongside housing-sensitive sectors.

Into the overnight, futures positioning hinges on Home Depot's premarket print Tuesday, the first domino in a retail earnings week that includes Target, Lowe's and Walmart, plus Wednesday's FOMC minutes. Indicative gamma structure suggests dealers are short gamma below the flip, meaning any further slippage on oil headlines can accelerate rather than cushion downside — that dynamic argues for tighter stops overnight.

The risk: a fresh Iran headline — good or bad — repriced in oil within minutes today, and with an Iranian official floating an offensive shift, headline risk into the Asia open is the single biggest swing factor for tomorrow's open.

Levels that framed this session

WatchWTI crude and Iran-Israel headline flow overnight
CatalystHome Depot premarket earnings Tuesday; FOMC minutes Wednesday
SPY flip~774 indicative — today's close sits right on this pivot
QQQ support~585 indicative, semis strength keeping this level defended
SPY call wall~785 indicative, tied to Thursday's record close area

This note is written from live dealer positioning.

The same gamma data behind it — the flip, the call and put walls, and where price sits between them — is on the terminal for any ticker, updated through the session. Every setup we publish carries its entry, stop and target before the trade, and gets graded in the open afterwards.

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