[Hong Kong Stocks Close, Gold Stocks Weaken Throughout the Day] Shenchao TechFlow reports that on September 17, Hong Kong stocks closed with the Hang Seng Index down 0.44% and the Tech Index down 0.34%. Gold stocks weakened throughout the day, with Shandong Gold (01787.HK) dropping over 5% and Chifeng Gold (06693.HK) falling nearly 5%.