In 2025, the HSI achieved its best performance since 2017 with a rise of 27.8%, Hang Seng Indexes Company said while summarizing the market performance. The HSCEI and HSTECH also grew by 22.3% and 23.5%. The Hang Seng Biotech Index even rocketed by 64.5%.The HSI added a total of 6 new constituents last year, bringing the total number to 89. Among them, 68 constituents headed north. The top three best-performing constituents were CHINAHONGQIAO (01378.HK) +1.400 (+4.292%) Short selling $169.43M; Ratio 26.517% / ZIJIN MINING (02899.HK) +1.280 (+3.589%) Short selling $265.25M; Ratio 26.492% / SMIC (00981.HK) +3.650 (+5.108%) Short selling $191.81M; Ratio 6.332% , up 177.4%/ 152.2%/ 124.7%. The three worst constituents were MEITUAN-W (03690.HK) +1.300 (+1.258%) Short selling $302.50M; Ratio 11.802% / LI AUTO-W (02015.HK) +3.200 (+4.934%) Short selling $207.72M; Ratio 38.215% / BYD ELECTRONIC (00285.HK) +1.640 (+4.875%) Short selling $17.76M; Ratio 7.743% , down 31.9%/ 31%/ 20%.(HK stocks quote is delayed for at least 15 mins.Short Selling Data as at 2026-01-02 16:25.)Related NewsBOCI Predicts CN Auto Sector to Get Off to Good Start This Yr, but Enter Destocking Phase in 1Q