A Deal could be announced next week, After Salesforce has talked to acquire Slack.
A 32% increase was seen in shares of Slack after the report by Wall Street Journal about the talks of acquisition. Salesforce stocks saw a drop of 4%. The company is also scheduled to release its Third Quarter earnings on 1st December.
Recently sales force is an acquisition free taking advantage of office market cap growth in recent years. In 2018 they acquired MuleSoft for 6.5 billion dollars to help connect cloud applications. Following your they acquire Tableau, data visualisation company for 15.3 billion dollars
After the news break there was a little drop seen in the shares of Microsoft who is competing with Slack through its Teams offering.
There were reports in 2016, that Microsoft looked at buying Slack for up to 8 billion dollars, but the deal could not be reached. Later that your Microsoft introduced the team communication app.
According to Wall Street Journal the deal is not guaranteed, and talks could fall through.