VaR

α = 0.1

α = 0.05

α = 0.01

疫情前

−0.01168

−0.01598

−0.02563

疫情期间

−0.01561

−0.02173

−0.03697

ES

α = 0.1

α = 0.05

α = 0.01

疫情前

−0.01797

−0.2243

−0.03334

疫情期间

−0.02491

−0.0315

−0.04839