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NY Pre-Market Brief

Oil and yields spike as Iran ceasefire collapses, dragging futures off record highs

Tuesday, August 18, 2026 · the tape framed before the US open · bias: risk-off

Futures are sliding into the open as an oil spike and multi-year-high yields on collapsing Iran ceasefire talks undercut last week's record run in stocks.

The S&P 500 closed Monday at 7,745, off 0.5% and roughly 1% below last week's record push through 7,800, while the Nasdaq Composite settled at 26,645. Futures are pointing lower again this morning, with S&P contracts down near 0.4-0.5% and Nasdaq 100 futures off closer to 0.8-1.1% as Trump's rejection of extending the ceasefire and Tehran's threat of a fully offensive posture around the Strait of Hormuz sends Brent toward $91 and WTI near $84. With live dealer gamma unavailable this run, treat levels as indicative: SPY's flip sits near 773, call wall clustering 780-785 off last week's record supply, put support 765-768; QQQ's comparable gamma flip runs near 715-720 with resistance into 735-740. A break of the SPY flip opens the door to negative gamma and faster downside.

Today's data slate — housing starts, import prices at 8:30, industrial production at 9:15, pending home sales at 10 — is secondary to geopolitics and the bond move, with the 10-year near 4.73% and the 30-year holding above 5.3%, its highest since 2007. HD and Baidu earnings land ahead of Wednesday's FOMC minutes, where three dissents in favor of a hike keep Warsh's path unsettled even as futures price roughly two-thirds odds of a September hold.

The risk: a Strait of Hormuz disruption or a hawkish minutes surprise Wednesday turns this controlled pullback into a bond-led de-grossing event, especially with VIX already firming near 16 after positioning stayed call-heavy into last week's highs.

Levels that framed this session

WatchWTI ~$84 / Brent ~$91 on Iran ceasefire collapse; 10Y 4.73%, 30Y >5.3%
Catalyst8:30am housing starts & import prices, 9:15am industrial production; FOMC minutes Wed
SPY flip~773 indicative gamma flip; below shifts dealers into negative gamma
QQQ support~715-720 indicative put support/gamma flip
SPY call wall~780-785, last week's record-high supply zone

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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