Which U.S. stock-market crash followed the 2020 COVID-19 shock and produced four trading halts in March?

The stock-market crash following the 2020 COVID-19 shock was the 2020 stock-market crash.

Global equity markets plunged in February and March 2020 as the coronavirus spread, governments imposed restrictions, economic activity stopped, and investors feared a severe recession. In the United States, the S&P 500 entered a bear market after falling at least 20% from its February record close. U.S. exchanges activated market-wide circuit breakers four times in March.

The crash was intensified by an oil-price dispute between Saudi Arabia and Russia, which contributed to a sharp fall in crude prices. Central banks and governments then introduced major monetary, fiscal, and public-health responses. Markets recovered rapidly from their March lows, even though the pandemic’s economic and human effects continued.

The 2020 event should not be confused with the separate question of the S&P 500’s single largest one-day percentage decline during the pandemic period. This item asks for the name of the broader crash, not a particular daily date or index record.