What happened Shares of Synchronoss Technologies (NASDAQ: SNCR) fell 20.1% in May 2017, according to data from S&P Global Market Intelligence. So what After a difficult April, the provider of software and services for the mobile industry seemed off to a good start in May. Share prices rose 12% on May 5 as a private investment group disclosed a brand-new 13% stake in the company. But the gains quickly evaporated as Synchronoss delayed its first-quarter earnings report -- twice. The company has now received a letter from the Nasdaq stock exchange, notifying it of noncompliance with the exchange's listing rules. Each of these events resulted in sharp sell-offs, and that early surge is old news now. Image source: Getty Images. Now what Synchronoss shares have taken a 66% haircut year to date. The company is running under a hastily compiled slate of executive officers, including former CEO Steve Waldis and CFO Larry Irving, who had left the company in sunnier days. All of this is happening under the cloud of Nasdaq's letter threatening Synchronoss' status as a publicly traded company. Moreover, preliminary first-quarter results point to weaker sales and thinner operating margins than expected. I'm not saying that Synchronoss is falling apart, but this spring will certainly go down as a difficult period in the company's history. The challenges are serious enough to keep me from seeing today's low share prices as a buy-in opportunity. It's probably best to let this explosive string of difficulties cool down before putting money into Synchronoss stock. 10 stocks we like better than Synchronoss TechnologiesWhen 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 10 best stocks for investors to buy right now... and Synchronoss Technologies wasn't one of them! That's right -- they think these 10 stocks are even better buys. Click here to learn about these picks! *Stock Advisor returns as of May 1, 2017Anders Bylund has no position in any stocks mentioned. The Motley Fool recommends Synchronoss Technologies. The Motley Fool has a disclosure policy.