Viacom, Tegna, NovoCure: 'Mad Money' Lightning Round

Here's what Jim Cramer had to say about some of the stocks during the Mad Money Lightning Round:

Workiva  (WK) : "There are so many cloud-based mobile companies that I have to take a breather and do more work on this one."

Tegna (TGNA) : "I like Viacom (VIAB) , which is a very cheap stock."

Neptune Wellness (NEPT) : "I need to do more work on this one, too."

NovoCure (NVCR) : "I recommended this one in the $15s and $20s because of how well it worked. You don't buy it for the earnings, you do it for the remarkable product. Just keep that in mind."

Ally Financial (ALLY) : "It's well-run and doing good. I'm more of a JPMorgan (JPM) and Bank of America (BAC) guy, but this one's doing well too."

Roper (ROP) : "I always liked this company and it does a fantastic job."

Accelerated Diagnostics (AXDX) : "This one is more homework for me."

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At the time of publication, Cramer's Action Alerts PLUS had a position in SLB, VIAB, JPM.