https://www.reuters.com/article/us-kuaishou-listing/tencent-backed-kuaishou-more-than-doubles-in-hong-kong-debut-after-5-4-billion-ipo-idUSKBN2A506F >Kuaishou Technology more than doubled in its Hong Kong stock market debut on Friday, becoming the fifth-largest listed company in the city, driven by massive demand from mom-and-pop investors for the Chinese online video service operator.