The tech-heavy Nasdaq Composite (^IXIC) jumped 1.3% as semiconductor names took center stage ahead of Big Tech results this week. The Dow Jones Industrial Average (^DJI) moved up more than 0.7%, while the S&P 500 (^GSPC) gained 0.9% after stocks slipped on Monday amid rising US-Iran tensions. Notably, the White House exempted Canadian oil imports from the tariffs, which come as crude oil prices trade at their highest level since mid-June. Oil prices eased slightly on Tuesday morning after the latest flare-up in the US-Iran war drove Brent crude (BZ=F) prices, the international benchmark, back above $91 per barrel. Anticipation continues to build for Big Tech results later this week — particularly from Alphabet (GOOG, GOOGL) on Wednesday — as investors scrutinize tech giants' AI spending plans.