Gamestopshort-interest reached nearly 38 percent of its float, putting the retailer of video game products at the top of the most shorted stocks in the S&P 500 index.
First Solar, which used to have the highest short interest, is now in fifth place.
Among the most shorted stocks, R.R. Donnelley & Sons has seen the largest increase in short interest so far this year, up 105 percent, while that of First Solar decreased the most, down 21 percent.
Short interest measures the total number of shares of a security that has been sold short , expressed as a percent of total tradable shares.
Investors track short-interest levels to gain a sense of where a stock might be headed, along with some insight into whether any positive news might force short traders to cover their positions, pushing stocks higher.
Here is a look at the most heavily shorted stocks, along with the percent change in stock price and short interest so far this year.
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