Shares of fast-fashion platform Shein fall 4% after quarterly profit slides 67%

Shares of fast fashion retailer Shein HKEX:625 dropped as much as 4.4% on Tuesday after it reported a 67% fall in quarterly profit, fuelling investor concerns over margin pressure and slowing growth.Since its September 1 stock market debut in Hong Kong to Monday's market close, Shein's shares have…