https://www.reuters.com/article/us-china-tencent-videogames/tencent-games-revenue-in-focus-after-china-blocks-monster-hunter-world-idUSKBN1KY1OU >China's Tencent Holdings Ltd saw its stock tumble on Tuesday, wiping out around $15 billion in its market value, amid concern of a blow to its video game revenue after regulators blocked the sale of one of its blockbuster titles.