 On CNBCs Mad Money Lightning Round, Jim Cramer said that Ibio Inc NYSE: IBIO has an interesting chart. He needs to do more work on the stock.Cramer didnt like the tone of an article about insider selling in Vaxart Inc NASDAQ: VXRT.Dynatrace Inc NYSE: DT has been a winner, but its a very expensive stock in terms of price-to-earnings ratio, said Cramer. He advised his viewer to stick with the stock.Rosetta Stone Inc NYSE: RST is an interesting, good household brand stock, said Cramer. He added that a short-seller recommended the stock as a buy and he sees that as a good sign.Cramer cant recommend Blink Charging Co NASDAQ: BLNK. He likes Tesla Inc NASDAQ: TSLA.See more from Benzinga Why Jeff Kilburg Is Bullish On Crude Oil Halftime Report Traders Discuss MKMs Sell Rating On Target Fast Money Halftime Report Picks For July 30: Mastercard, XPO And MoreC 2020 Benzinga.com. Benzinga does not provide investment advice. All rights reserved. 