给定一段英文文本，生成该文本的概括或摘要。



输入文本：In January 2021, a group of amateur traders on the subreddit r/wallstreetbets began buying large amounts of stock in GameStop, a struggling video game retailer. Their actions caused the price of GameStop's stock to soar, delivering large profits to some of the traders while also causing significant losses to established investors who had bet that the price would fall. The situation received widespread attention in the media and sparked a debate about the regulation of online stock trading and the democratization of finance.
Amateur traders on subreddit r/wallstreetbets caused GameStop's stock price to surge in Jan 2021, leading to a debate about online stock trading regulation and democratization of finance, but also causing significant losses to established investors.