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

Taser International (TASR) : "This is a very undervalued company. I'm surprised it's not higher."

Gartner (IT) - Get Report : "I think that company is very expensive, but it's also got great growth."

MaxLinear (MXL) - Get Report : "That and Texas Instruments (TXN) - Get Report are chronically undervalued."

Chesapeake Energy (CHK) - Get Report : "I'm not a big fan. I don't care for fossil fuels."

Amgen (AMGN) - Get Report : "I think the stock is very good, but these stocks are going to fall in the short term."

Westar Energy (WR) : "Ring the register. I like American Electric Power (AEP) - Get Report ."

Wynn Resorts (WYNN) - Get Report : "I'm a believer. I'd buy half now and wait till they report for the rest."

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