S&P 500 Holds 7100 as Oil Surges Amid Moment of Hormuz Strait Reckoning

• Oil prices jumped sharply with Brent crude advancing 5% to around $95 and WTI climbing 6% to near $89 after Iran reclaimed control of the Strait of Hormuz following failed peace negotiations over the weekend
• A ceasefire between the U.S. and Iran expires Tuesday, making diplomatic developments the week's biggest market catalyst as crude oil could retest April highs above $114 if talks collapse
• Tesla reports Q1 2026 earnings Wednesday after the close, with the stock down 12% year-to-date despite recent vehicle deliveries falling 16% year over year

Market Summary: S&P 500 Holds Above 7,100 as Geopolitical Tensions Drive Oil Surge

Market Performance:

U.S. equity markets declined Monday morning, with the S&P 500 falling 0.46% but holding above the critical 7,100 level (closing at 7,107). The index maintains a 4.1% year-to-date gain for 2026. Other indices showed similar weakness: Dow Jones -0.47%, Nasdaq 100 -0.33%, Russell 2000 -0.68%.

Key Catalyst:

Renewed U.S.-Iran conflict over the Strait of Hormuz is driving market volatility. After Iran briefly declared the strait "completely open" on Friday—triggering a 10% crude oil decline and a 4.5% weekly S&P 500 gain—tensions re-escalated over the weekend. Tehran reclaimed control of the chokepoint after President Trump refused to lift the U.S. naval blockade, leading to vessel attacks by Iran's Revolutionary Guard and a U.S. Navy seizure of an Iranian cargo ship Sunday.

Oil Market Impact:

Crude prices surged Monday with Brent advancing ~5% to $95/barrel and WTI climbing ~6% to $89/barrel, approaching the $100 threshold. WTI had peaked at $114.58 on April 7 before Friday's temporary relief.

Critical Events:

• Tuesday: U.S.-Iran ceasefire expires, representing the week's biggest market catalyst
• Wednesday: Tesla earnings after close (Q1 2026), with the stock down 12% YTD despite completing AI5 chip development. Vehicle deliveries fell 16% year-over-year, though energy storage revenue grew 25%

Economic Backdrop:

The 10-year Treasury yield holds near 4% at multi-month highs. University of Michigan consumer sentiment plunged to a historic low of 48 in April. Rising oil prices threaten corporate margins while elevated rates pressure equity valuations. VIX settled near 18, within normal range, but could spike on further geopolitical deterioration.