Shares of Reddit (RDDT 0.41%) were among the losers on the stock market last month after better-than-expected results weren't enough to keep the company's blistering momentum going.The social media stock has been a huge winner on the market since its IPO a year ago, but investors now seem to believe its valuation has run up far enough, especially as concerns about the broader economy are swirling around growth stocks.According to data from S&P Global Market Intelligence, the stock finished February down 19% ...