AI Momentum Drives Tech Higher Despite Iran Ceasefire Deadline

Tech stocks continued dominating markets on April 21, 2026, with AI enthusiasm trumping U.S.-Iran ceasefire expiry risks set for Wednesday. Amazon's up-to-$25 billion investment in Anthropic—after its $50 billion OpenAI deal—sparked Asian rallies, pushing South Korea’s Kospi and SK Hynix to record highs amid initial Wall Street pauses. Futures rebounded ahead of U.S. tech earnings like Tesla’s on Wednesday, retail sales data, Fed nominee hearing, and Apple’s CEO shift to John Ternus on September 1, framing tech resilience offsetting geopolitical tensions.