Wall Street ended sharply lower on Thursday and the S&P 500 confirmed it is in a correction after cool inflation data was overshadowed by fears that the escalating tariff war being waged by the United States against some of its biggest trading partners could reignite inflation and tip the economy into recession.

A 10% drop is a big enough deal that professional investors have a name for it — a “correction” — and the S&P 500’s 1.4% slide on Thursday sent the index to its first si