The drop, which followed a sharp decline in GameStop shares on Monday, may also result in significant losses for some of the individual investors who had ridden the positive stock market suggestions posted on WallStreetBets. The forum has soared in popularity in the past week, swelling to 8 million members. GameStop's shares hit an all-time high of $483 on Thursday.Since then, GameStop's stock price has fallen 81% to $91 in less than a week. That's erased nearly $29 billion in the company's stock-market value, which at its height last week had a market capitalization of $35 billion. On Tuesday that market value had sunk to $6.4 billion.The share prices of other companies that have gotten boosterish mentions in WallStreetBets have suffered steep drops as well. Shares of movie theater chain AMC Entertainment were also down about 50% on Tuesday, to about $6.50 each. That stock had been as high as $20 last week. BlackBerry's shares, which had been as high as $28 last week, also fell Tuesday, to $11.
科技界的亿万富豪、电动车大厂特斯拉执行长马斯克今天表示，他将暂时告别推特“一阵子”。他近来在推特上发文引发股市狂热，导致多家公司股价飙升。
特斯拉（Tesla）的股价在过去1年飙涨9倍，马斯克（Elon Musk）的财富估计达到1850亿美元（约新台币5兆1766亿元），上个月他取代亚马逊公司（Amazon）执行长贝佐斯（Jeff Bezos）成为世界首富。
马斯克没有说明他做此决定的原因，仅发文告诉追踪他的4450万粉丝说：“暂离推特一阵子。”
根据美国有线电视新闻网（CNN）报导，马斯克上周曾发推文表示，他支持在美国社群网站Reddit协调购买电玩零售商GameStop股票的散户，这家连锁零售商的股价因而暴涨680%。
另据财经媒体CNBC报导，数小时后，他又发了一篇推文说看好零售网站Etsy，这家公司股价随即劲扬8%。
而上月29日，当他在推特账号加上主题标签“#比特币”（#bitcoin），这种加密货币的价格一度飙升了约20%。