Historic Market Crash Day 1: S&P -4.84%, Dow -1,679 pts, Nasdaq Worst Session Since COVID-19

Thursday April 3 saw the first full session of the tariff-triggered market crash, with US equities posting their worst single-day performance since the COVID-19 pandemic crash of 2020. The S&P 500 fell 4.84%, the Dow Jones Industrial Average dropped 3.98% (-1,679 points), and the Nasdaq Composite shed 1,600 points in its worst decline since March 2020. The selloff was driven by Trump's April 2 tariff expansion — strengthened metal tariffs (50% on steel/aluminum/copper articles) and announced pharmaceutical tariffs (100%) — which investors interpreted as a renewed trade-war escalation that would materially harm corporate earnings, raise input costs across manufacturing sectors, and accelerate inflation above the Fed's 2% target. The sell-off was broad-based: industrials, consumer discretionary, tech hardware, and healthcare (on pharmaceutical tariff fears) all fell sharply. VIX (the 'fear gauge') spiked above 30 intraday for the first time since the March 2026 Iran-conflict panic. Small-cap stocks (Russell 2000) fell more than 5%, reflecting elevated domestic recession risk from tariff pass-through. Global equity markets followed: European indices fell 2–3% and Asian markets declined in overnight trading.