Quick TakeSince peaking on February 20, the S&P 500 index has dropped by as much as 35.8% in 22 trading daysBiotechnology was the best-performing equity sector, followed by consumer staple firms, gold-mining firms and health-care providers, food and beverage companies, and medical device manufacturersThe worst-performing sector is, not surprisingly, the energy industry, which took a major hit because of the cratering price of crude oil that fell by 62%Bitcoin and Ethereum are amongst the worst performing assets