What happened Shares of payment processing company Square (NYSE: SQ) tumbled 37.1% in March, according to data provided by S&P Global Market Intelligence, as small businesses around the country closed because of the coronavirus crisis. So what Square has become a staple of the small business community by creating an easy-to-use payment processing platform, and it's estimated that more than 40% of the company's sales come from restaurants and retailers. With many of those businesses now closed, at least temporarily, Square's revenue will no doubt suffer in the coming months. Image source: Getty Images. The company said in a press release last month that, "Starting in March, the effects of COVID-19 began to impact the company's growth, in particular due to a slowdown in gross processing volume (GPV) for its Seller ecosystem." Square expects to report a net income loss per share for the first quarter of 2020 and withdrew its full-year guidance "given the uncertainty around COVID-19." With the continued uncertainty surrounding when small businesses will reopen, investors are worried that Square's sales will continue to fall. Now what Square's share price slid another 8% since the beginning of April as more investors became concerned about the effects of the coronavirus crisis on restaurants and retailers. It's unclear how much further the company's stock could fall, and investors should expect continued volatility in the company's share price. If there's one bright spot for Square, it's that the company's underlying business is still intact. Once small businesses begin reopening, the company's payment processing platform should benefit from the spike. 10 stocks we like better than SquareWhen 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 Square 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 March 18, 2020 Chris Neiger has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Square and recommends the following options: short September 2020 $70 puts on Square. The Motley Fool has a disclosure policy.Source