shares of chinese internet giants jumped in hong kong after official data showed betterthanexpected october retail sales in the worlds secondlargest economy alibaba group holding ltd jumped 98 kuaishou technology surged 87 tencent holdings ltd rose 80 and meituan was up 58 the hang seng tech index has gained as much as 77 and was last up 61 the sectors sharp upturn came after chinas national bureau of statistics said online retail sales of physical goods rose 72 in the first 10 months of the year the number closely watched by investors as an indicator of the countrys consumption trends outpaced a 61 rise in the januarytoseptember period jefferies analysts estimate that online retail sales grew more than 15 in october accelerating from the three consecutive months of below10 growth seen since july