What happened The stock market was having a mixed day on Wednesday. The Dow Jones Industrial Average and Nasdaq Composite were both modestly lower, while the S&P 500 was slightly positive for most of the morning. On the other hand, Clover Health Investments (NASDAQ: CLOV), a disruptive Medicare insurance technology company, was a big standout. As of 11:30 a.m. EDT, Clover is higher by more than 16%, and this comes on the heels of already strong performance over the past week or so. Image source: Getty Images. So what There isn't any company-specific news fueling today's rally. Instead, this seems to be driven by investor sentiment that recent short-seller attacks aren't as bad as they seemed, and that Clover Health is a prime candidate for a short squeeze. As of the latest available information, nearly 36% of Clover's float was sold short, making it one of the most heavily shorted names in the market. Now what Clover Health did have one news item today: The company announced that it would report its first-quarter results on the morning of May 17. In 2020, Clover Health's premium revenue grew by 46% year over year and its member base grew by 36%. Investors will see if the company's momentum is accelerating after its recent SPAC merger. So, in a few weeks we'll know if the company's growth is sustainable and if these moves to the upside are justified, overdone, or not sharp enough. 10 stocks we like better than Clover Health InvestmentsWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and Clover Health Investments wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of February 24, 2021 Matthew Frankel, CFP owns shares of Clover Health Investments. The Motley Fool owns shares of and recommends Clover Health Investments. The Motley Fool has a disclosure policy.Source