What happened Business software giant salesforce.com (NYSE: CRM) is reportedly considering a buyout of business collaboration tools specialist Slack Technologies (NYSE: WORK). The report triggered dramatic market reactions to both of these stocks, driving Slack shares as much as 32.5% higher while Salesforce shares fell as much as 5.2%. So what According to a widely cited brief from The Wall Street Journal, Salesforce has been talking to Slack about a business combination in recent weeks. There is no firm proposal on the table yet, but the WSJ's anonymous insider sources say that the final price tag would exceed Slack's $17 billion market capitalization as of Wednesday morning. The talks may not result in a deal, and Salesforce could move its attention to other buyout targets, some of the sources said. Image source: Getty Images. Now what Salesforce is no stranger to large acquisitions. The company spent $1.35 billion to pick up field service specialist ClickSoftware in 2019, just days after closing the $15.3 billion buyout of data analytics expert Tableau. That being said, Slack would be the largest deal in Salesforce's history. A buyout of this magnitude should not be taken lightly, and Salesforce's investors don't seem terribly impressed by this idea. Slack's market cap grew $3.7 billion larger today, while Salesforce's market value fell by $7 billion. 10 stocks we like better than Slack 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 ten best stocks for investors to buy right now... and Slack Technologies 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 November 20, 2020 Anders Bylund has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Salesforce.com and Slack Technologies. The Motley Fool has a disclosure policy.Source