Tmall, one of China's largest e-commerce sites, says more than 400 brands on the platform reached 100 million yuan in sales during this year's "Double 11" shopping extravaganza. Another e-commerce giant, JD.com, also reported record highs in sales during the same period. Chen Jiahe, chief investment officer at Novem Arcae Technologies, says he's impressed with the speed at which deliveries are being made despite of skyrocketing demands.