Hang Seng Index marks best start to year since 2011 as banks and insurers rally while Xiaomi plunges

• Hong Kong markets completed a third week of gains, lifting the benchmark index to highest level before the Wuhan lockdown a year ago
• Xiaomi crashed by a record 10 per cent on US sanctions, while insurer AIA Group and Chinese bank stocks pushed the market to its best opening two weeks of year since 2011