Jim Cramer weighs in on Slack (WORK) going public Thursday.
The reference price--not its pricing point, since it's not IPOing--for Slack's direct public offering Thursday was set at $26 by the NYSE.
However, Cramer's got some advice for investors who are wondering if it's worth buying Slack.
"Do not own all three because these are what I used to call in my book Real Money. The red hots and the red hots are remarkable, they popped up in 1999 and they're back," he continued.