Why Jim Cramer's Keeping a Close Eye on the Cloud Kings

It's a busy week for the Cloud Kings and Princes.

The market will get earnings from Salesforce (CRM) - Get Report , Workday (WDAY) - Get Report , and Coupa (COUP) - Get Report .

Jim Cramer had some thoughts on the sector.

"I'm watching the Cloud Kings have a major, major reversal here. Salesforce reports this week. Adobe had a big run. Workday coming in. ServiceNow coming in. So I find myself thinking this, I find myself thinking, once again, rotation out of high multiples and locking in gains and those usually presage a decline in the market. So let's be a little careful," he explained.