The leading publicly traded hospital and insurance companies were hit harder than the market as a whole, which fell 12% on Monday.

Stock Symbol Percentage change
Universal Health Services UHS -22.37%
Tenet Healthcare Corp. THC -19.33%
HCA Healthcare HCA -19.02%
Anthem ANTM -17.44%
Cigna CI -16.22%
Humana HUM -13.65%
Community Health Systems CYH -12.41%
S&P 500 -11.98%