Cramer's lightning round: Why he doesn't trust one group of REITs

It's that time again! Jim Cramer rang the lightning round bell, which means he gave his take on caller favorite stocks at rapid speed:

Chevron: "No, when you get back to even it's not time to sell. You want to stay long or own Chevron."

Glaukos Corp: "It's a glaucoma company and I think you're fine, but it's a spec and the market does not like specs now because a lot of them have run already."

American Electric Power: "My charitable trust owns it. We have watched it go down, down, down, down. I think it's the right level to be able to buy a little more. We were debating pulling the trigger for actionalertsplus.com and we didn't get a chance to, but I think it's good right here, right now."

Welltower Inc: "I don't trust that particular part of the real estate investment trust area. This is health care, senior housing. There is too much competition. I'm going to say let's not buy."

Wendy's Co: "You know I like Wendy's. We have had them on twice. I think it can go higher. I like the situation."

United Rentals: "This stock is up from the $60s. It's had quite a bit of a run and I can't count it as buying it here. I'd rather buy it under $90."

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