GameStop ($GME) short sellers have faced significant losses due to a dramatic surge in the company's stock price. On Monday, the stock soared by as much as 110%, leading to short sellers incurring mark-to-market losses of approximately $1.02 billion, according to data firm S3 Partners. The stock's price move of +92% on the same day further contributed to these losses. Over the past 30 days, 1.4 million new shares have been shorted, worth $24 million. Short interest remains high, with 64.49 million shares shorted, representing 24.16% of the float. Overall, short sellers have lost $1.43 billion in May so far, and $1.8 billion over the last two weeks, including losses from short positions in both GameStop and AMC. The stock experienced 8 LULD halts in the first hour of trading. Despite being up $392 million in Jan-April mark-to-market profits, short sellers have now lost $1 billion in one day.