Overnight Developments
U.S.–Iran Talks Collapse; Strait of Hormuz Blockade Threatened — CNBC
Iranian state media reported that Tehran’s negotiators will halt all back-channel messaging with the U.S. and signaled a move to fully block the Strait of Hormuz. A blockade of the world’s most important oil chokepoint would be a major escalation — watch crude, energy names, and shipping for a risk-on/risk-off split. Despite the headline, U.S. futures are holding green for now. Affected sectors: Energy, Transportation, Defense, Broad market
Trump Adjusts Steel, Aluminum, Copper & Equipment Tariffs — The White House
A new proclamation modifies tariffs on metals and machinery — including a cut on agricultural equipment from 25% to 15% — effective June 8, 2026. Net impact is mixed: relief for some importers, fresh cost pressure for others across manufacturing, construction, and metals. Affected sectors: Agriculture, Manufacturing, Construction, Metals
Futures & Pre-Market
| Index | Futures | Change |
|---|---|---|
| S&P 500 | 7,597.50 | +0.21% |
| NASDAQ | 30,518.25 | +0.52% |
| DOW | 50,944.00 | +0.03% |
Watchlist Movers
- SMCI −4.78% pre-market — no clean stock-specific catalyst identified; move runs counter to up futures and same-day AMD Helios / Arm platform announcements, pointing to profit-taking or rotation out of AI-server names.
International Markets
Asia was mixed: Hang Seng surged +2.52% and Shanghai added +0.43%, while the Nikkei slipped −0.41%. Europe is firmly higher with the DAX +0.98% and FTSE 100 +0.51% — the geopolitical headlines have not yet rattled overseas equities.
What to Watch at Open
Energy and oil-sensitive names are the key tell — a confirmed Strait of Hormuz move would spike crude and pressure the broad tape, so watch whether green futures hold. SMCI’s slide also bears watching as a read on AI-server appetite.
This alert is for informational purposes only and does not constitute financial advice.