Industry sector | Drawing group | Stock return rate mean (%) | |||||
2017 | 2018 | 2019 | 2020 | 2021 | |||
V1 | Information Transmission, Software & Information Technology Services | #B | −30.56*** | −36.33*** | 5.63* | 5.26* | −11.36 |
#A | −22.03*** | −24.41*** | 15.12* | 13.78* | −6.46 | ||
V2 | Construction | #B | −8.58* | −36.01* | −7.76 | −1.83 | 9.86 |
#A | 0.60* | −30.48* | −2.98 | −9.44 | 13.37 | ||
V3 | Production & Supply of Electricity, Heat, Gas, Water | #B | −6.88 | −25.51 | −4.76 | −7.28 | 35.64 |
#A | 3.12 | −22.41 | 0.98 | −8.11 | 35.60 | ||
V4 | Mining | #B | 7.54 | −26.24* | 0.44 | −3.77 | 47.07 |
#A | 7.45 | −18.12* | 3.90 | −3.56 | 33.90 | ||
V5 | Wholesale & Retail | #B | −13.20 | −26.74 | −4.92 | 12.60 | 4.45* |
#A | −8.95 | −31.82 | −8.24 | 4.69 | 30.04* | ||
V6 | R&D Research Services | #B | −21.88 | −36.31 | −12.09 | 0.13 | 19.39 |
#A | −13.80 | −35.10 | −7.50 | 7.26 | 6.64 | ||
V7 | Management of Water Conservancy, Environment & Public Facilities | #B | −17.54 | −39.42 | −15.51 | −7.48 | −8.80*** |
#A | −10.14 | −35.95 | −17.20 | −0.83 | 9.71*** | ||
V8 | Transportation, Warehousing & Postal | #B | 17.17 | −24.24 | 0.48 | −11.22 | 5.91 |
#A | 8.91 | −25.46 | 1.95 | −8.18 | 6.22 | ||
V9 | Finance | #B | −10.19*** | −21.02* | 21.52 | 4.16 | 0.54 |
#A | 17.94*** | −3.12* | 19.79 | −9.02 | 0.95 | ||
V10 | Real Estate | #B | −6.45 | −29.67 | 2.17 | −10.45 | −12.92* |
#A | −16.54 | −31.54 | 1.26 | −9.11 | 9.58* |