HK Stock Connect Daily Report: CATL Falls 11.41% as Third-quarter Net Profit Reaches RMB 21.246 Billion - 20261021

I. Market Overview

On October 21, 2026, the three major Hong Kong indices opened higher and sold off through the session. The Hang Seng Index opened at 24,139.11, which was also its intraday high, before sliding to 23,651.87, down 0.90%; the Hang Seng TECH Index opened at 4,110.74 and closed at 3,994.77, down 1.26% and below the 4,000 mark; and the Hang Seng China Enterprises Index closed at 7,943.41, down 1.08%. Full-day turnover on the Hang Seng Index reached HKD 176.6 billion, down from HKD 190.5 billion a day earlier.

On the board, among Stock Connect constituent stocks, VIEWTRIX TECH rose 20.19%, BRAINAURORA-B rose 17.05%, SEER TECH rose 16.26%, BAIGE DIGITAL rose 10.94% and DEEPEXI TECH rose 10.30%; on the downside, WELLCELL HOLD fell 28.49%, REALORD TECH fell 15.89%, MANYCORE TECH fell 13.20%, CATL fell 11.41% and STAR SPORTS MED fell 11.06%. Selected pharmaceutical and semiconductor names bucked the trend, while lithium battery and recently listed names came under pressure.

Southbound capital recorded net selling of HK$4.435 billion on the day, comprising net selling of HK$2.298 billion via Stock Connect (Shanghai) and net selling of HK$2.137 billion via Stock Connect (Shenzhen), with both channels selling on a net basis.

II. HK Stock Connect Stock Rankings

2.1 HK Stock Connect Stock Gainers and Decliners

Source: Wind, HKEX. The content of this article is for the objective presentation of data only and does not constitute any investment advice, nor does it represent a recommendation for or value judgment on any security. The market involves risks; investment requires caution.

2.2 HK Stock Connect Active Stocks (ranked by southbound turnover)

Source: Wind, HKEX. The content of this article is for the objective presentation of data only and does not constitute any investment advice, nor does it represent a recommendation for or value judgment on any security. The market involves risks; investment requires caution.

III. HK Stock Connect-related A-share ETF Rankings

3.1 HK Stock Connect-related A-share ETF Gainers and Decliners

Source: Wind. The content of this article is for the objective presentation of data only and does not constitute any investment advice, nor does it represent a recommendation for or value judgment on any security. The market involves risks; investment requires caution.

3.2 HK Stock Connect-related A-share ETF Active Rankings (ranked by turnover)

Source: Wind. The content of this article is for the objective presentation of data only and does not constitute any investment advice, nor does it represent a recommendation for or value judgment on any security. The market involves risks; investment requires caution.

IV. Industry and Corporate Updates

1. CATL Falls 11.41% as Third-quarter Net Profit Reaches RMB 21.246 Billion

On October 21, CATL (03750.HK) closed down 11.41% at HKD 364.800, with turnover of HK$4.961 billion, the fourth-largest decline among Stock Connect stocks on the day. The company released its third-quarter 2026 report on the evening of October 20: quarterly revenue was RMB 165.221 billion, up 58.58% year on year, and net profit attributable to shareholders was RMB 21.246 billion, up 14.54% year on year and down about 5% quarter on quarter, with the quarterly consolidated gross margin falling to 20.69%. For the first three quarters, revenue reached about RMB 442.137 billion, up 56.19%, and net profit attributable to shareholders about RMB 64.53 billion, up 31.6%. Third-quarter power and energy storage battery sales totalled more than 260GWh, of which energy storage accounted for about one quarter.

2. MONTAGETECH Rises 8.97% as Third-quarter Interconnect Chip Revenue Reaches RMB 2.047 Billion

On October 21, MONTAGETECH (06809.HK) closed up 8.97% at HKD 221.200, with turnover of HK$789 million, ranking sixth among Stock Connect gainers. Its third-quarter 2026 preliminary results show revenue of about RMB 2.079 billion, up roughly 46.0% year on year, and net profit attributable to shareholders of RMB 1.20 billion to RMB 1.30 billion, up 153.6% to 174.7% year on year. Revenue from the interconnect chip product line reached about RMB 2.047 billion, about 98.5% of total revenue, up roughly 49.3% year on year, with gross margin expected at 68.0% to 68.5% for the line.

3. Southbound Net Selling Reaches HK$4.435 Billion as TENCENT Sees HK$1.706 Billion Sold

On October 21, southbound capital recorded net selling of HK$4.435 billion, comprising net selling of HK$2.298 billion via Stock Connect (Shanghai) and HK$2.137 billion via Stock Connect (Shenzhen), with both channels selling on a net basis. At the stock level, TENCENT (00700.HK) topped southbound turnover at HK$10.514 billion with HK$1.706 billion of net selling; CHINA MOBILE (00941.HK) saw HK$1.034 billion of net selling, ALIBABA-W (09988.HK) HK$878 million and SMIC (00981.HK) HK$713 million, while YOFC (06869.HK) drew HK$253 million of net buying and CNOOC (00883.HK) HK$173 million.

4. US Biotech Sector Strength Overnight Lifts QDII Biotechnology ETFs

On October 21, biotechnology and biopharmaceutical QDII ETFs listed in the A-share market advanced. Harvest S&P Biotechnology Selected Industry ETF(QDII) (159502) rose 3.02% and China Universal NASDAQ Biotechnology Technology ETF(QDII) (513290) rose 2.18%, the two largest gains among HK Stock Connect-related ETFs on the day. The three major US indices closed mixed overnight, with the biopharmaceutical sector among the leading gainers, providing external support for these products. Hong Kong innovative drug names were also actively traded: GF CSI HK Innovative Drugs Industry ETF(QDII) (513120) recorded turnover of RMB 5.632 billion, second on the active list, and closed down 0.08%.

5. Automobile, Consumption and Internet Theme ETFs Slip as the China-Korea Semiconductor ETF Gains

On October 21, automobile, consumption and internet theme ETFs among HK Stock Connect-related products declined broadly. E Fund Hang Seng HK Equities Automobile Theme ETF (159121) fell 2.54%, E Fund CSI HK Equities Consumption Theme ETF (513070) fell 2.40%, Guolian CSI HK Equities Internet ETF (159089) fell 2.39%, Penghua Hang Seng HK Automobile Theme ETF (159186) fell 2.37% and ICBCCS CSI HK Equities Vehicles Industry Theme ETF (159237) fell 2.19%. Semiconductor themes held up better, with Huatai-PB China Securities Han Stock Exchange China Korea Semiconductor ETF(QDII) (513310) up 1.26% and leading the active list with RMB 9.014 billion of turnover.