S&P500: US Indices Drop as Oil Rebound Shakes Stock Market Forecast

• WTI crude jumped roughly 3% to $102/barrel and Brent to $108 after Iran's supreme leader ordered enriched uranium kept inside borders, reigniting inflation fears and deal optimism collapse
• Nvidia beat estimates with 85% year-over-year revenue growth ($81.62B vs. $78.86B expected) but the stock barely moved, signaling stretched expectations across the AI sector
• Philadelphia Fed Manufacturing Index collapsed to negative 0.4 in May from 26.7 in April, a brutal miss suggesting potential earnings impacts two quarters ahead; quantum computing stocks surged on reports of $2B in government grants with Washington taking equity stakes

Market Summary: U.S. Indices Decline on Oil Surge and Rising Yields

Market Performance (May 21, 2026):

The S&P 500 fell 0.2%, Nasdaq Composite dropped 0.3%, while the Dow Jones remained relatively flat. WTI crude oil surged approximately 3% to $102/barrel, and Brent crude rose 3% to $108/barrel following Iran's supreme leader ordering enriched uranium to remain within the country's borders, eliminating hopes for a diplomatic deal.

Treasury Yields:

The 10-year U.S. Treasury yield climbed 4 basis points to 4.615%, while the 30-year hit 5.14%. Higher yields are pulling capital from equities into bonds and raising borrowing costs.

Corporate Developments:

• Nvidia (NVDA): Despite beating estimates with revenue up 85% year-over-year to $81.62 billion (vs. $78.86 billion expected) and raising dividends to $0.25/share, the stock declined 1.95%, reflecting stretched AI sector expectations.
• Walmart (WMT): Dropped 6.96% on weak guidance.
• Quantum Computing Sector: Multiple stocks surged on news of $2 billion in government grants. IBM jumped 6% on potential $1 billion allocation. Rigetti Computing rose 24.28%.
• SpaceX: Opening public offering directly to retail investors through Robinhood, Fidelity, and Charles Schwab at institutional pricing.

Economic Data:

Manufacturing data collapsed, with the Philadelphia Fed Index plunging to -0.4 in May from 26.7 in April—a significant miss. Initial jobless claims came in at 209,000, indicating labor market resilience.

Technical Analysis:

The S&P 500 is testing critical support at 7425.40-7447.05. A break below 7425.40 could trigger further declines toward 7281.84, forming a bearish pattern.

Market Outlook:

Elevated oil prices sustain inflation concerns, keeping the Fed on hold while rising yields pressure equities