Shein's shares [HKG: 0625] were trading down 13% at HKD30.64 (USD3.91) each as of 10.43 a.m. in Hong Kong today, after the online retailer said net profit climbed 112% to USD2.3 billion in the first half from a year earlier. Revenue rose 1% to USD20.1 billion. Shein debuted on the stock market on Sept. 1.