Wall Street faces a week of tests on oil, yields, and Nvidia

Wall Street faces a week of tests as markets confront rising oil prices from Iran tensions, high bond yields, and Nvidia's earnings report. All three major US indices declined last week as higher energy prices and bond yields hit technology stocks. Treasury Secretary Scott Bessent is expected to announce major sanctions against Iran, potentially tightening oil markets further. Brent crude fell to about $91 a barrel Monday. Nvidia reports quarterly results Wednesday, with investors scrutinizing AI spending returns. The Fed's Jackson Hole meeting Friday adds uncertainty about interest rates and Treasury intervention.