Shares of WorkDay (WDAY) - Get Report are up over 1% Wednesday after analysts at Citigroup raised their price target to $89 from $76. Shares are currently trading around $78.

"You do not go out and make this call unless you're really confident that they are going to beat the numbers," TheStreet's Jim Cramer, co-manager of the Action Alerts PLUS portfolio, said on CNBC's "Stop Trading" segment.

Oracle (ORCL) - Get Report has "its sights set on destroying" Workday, he explained, while Workday CEO Aneel Bhusri has "his sights set on taking all the Oracle business he can."

The cloud business remains attractive, but it's driven up the valuations for some of these stocks. Investors should keep an eye on the controversial and heavily shorted stock Workday.

"I am shocked that they came out with this call," Cramer said of the analysts, adding that "if this one works out, it's going to work out gigantically."

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At the time of publication, Cramer's Action Alerts PLUS had no position in companies mentioned.