The HKD touched the weak-side convertibility undertaking, prompting the Hong Kong Monetary Authority (HKMA) to purchase $20 billion. Hong Kong stocks opened higher on the first trading day of 2H25. The HSI opened 232 points or 1% higher at 24,304 after the Hong Kong Special Administrative Region Establishment Day holiday, and its uptrend eased in the early session. The index picked up 173 points or about 0.7% to last at 24,246, with a turnover of $109.961 billion.Stocks that showed significant volatility last week continued to be speculated. CHINA TRAVEL HK (00308.HK) +0.020 (+1.389%) Short selling $99.83M; Ratio 17.328% opened 0.7% higher before its gains rapidly expanded, and once rocketed 23.5% to a high of $1.84. Subsequently, its gains narrowed. The stock last printed at $1.68, up 12.75%, with a turnover of $1.066 billion.GUOTAI JUNAN I (01788.HK) +0.410 (+10.622%) Short selling $82.00M; Ratio 0.615% once escalated 6.4% to a high of $3.65 in the early session, and last jumped up 2.62% to $3.52, with a turnover of $1.521 billion.(HK stocks quote is delayed for at least 15 mins.Short Selling Data as at 2025-07-04 16:25.)