On CNBC's "Mad Money Lightning Round," Jim Cramer said Virgin Galactic Holdings Inc (NYSE:SPCE) is a very expensive stock. It had a nice run, but he would look for other stocks. The class action stuff doesn't bother him.

Digital Realty Trust, Inc. (NYSE:DLR) is just terrific and Cramer would stick with it.

Cramer would not sell Generac Holdings Inc. (NYSE:GNRC).

Sorrento Therapeutics Inc (NASDAQ:SRNE) is fine and it has a lot of hot money, said Cramer.

Cramer is a buyer of Haemonetics Corporation (NYSE:HAE).

It's time to buy, not sell Zynex Inc. (NASDAQ:ZYXI), said Cramer.