On CNBC's "Mad Money Lightning Round," Jim Cramer said he should talk more about Cloudflare Inc (NYSE:NET) on the show because it has got a great security component and it's doing incredibly well.

Instead of Magnite Inc (NASDAQ:MGNI), Cramer would buy Trade Desk Inc (NASDAQ:TTD).

Cramer said to a viewer that he is OK in BlackBerry Ltd (NYSE:BB), but there is no catalyst.

Cramer would not sell Mp Materials Corp (NYSE:MP). He is happy with its business and he would stick with the stock.

Immunitybio Inc (NASDAQ:IBRX) is a pure spec and there is nothing wrong with that, said Cramer.