On September 18, 2025, during the midday trading break of Hong Kong's stock market, the Hang Seng Index (HSI) experienced a slight dip, decreasing by 0.18%. In contrast, the Hang Seng TECH Index demonstrated resilience, climbing 1.04%. The semiconductor and technology sectors emerged as the frontrunners, driving the market's positive momentum. Notably, Hua Hong Semiconductor and Solomon Systech witnessed remarkable surges, with their share prices jumping over 10%. SMIC also posted a significant gain, rising more than 6%, while Baidu's shares advanced over 4%. Conversely, the coal and petroleum & petrochemical sectors faced headwinds, with Yankuang Energy's stock plummeting over 3% and China Oilfield Services witnessing a decline exceeding 1%. Meanwhile, southbound investors displayed bullish sentiment, with net purchases reaching HK$4.183 billion.