Six Flags

(SIX) - Get Report

is a damaged brand, and investors looking for exposure to theme parks should swap into

Cedar Fair

(FUN) - Get Report

, Jim Cramer said on

CNBC's

"Stop Trading!" segment Friday.

Cramer said he was appalled to learn that part of Six Flags' travails have included "loitering teenagers" at its parks.

"Suddenly I can't go there," he said. CEO Mark Shaprio, who took over for Kieran Burke late last year, "better learn this isn't ESPN; this is dads and moms trying to decide if they should go to that theme park." Cedar Fair, meanwhile, "has much better numbers, and I don't think they have the loiterers, smokers and security-problem people."

In the health maintenance space, Cramer said he senses that sentiment is finally stabilizing around

Cigna

(CI) - Get Report

and, to a lesser extent,

UnitedHealth

(UNH) - Get Report

.

"Things are bottoming," Cramer said, citing new research by Goldman Sachs. As evidence, he pointed to light admissions at hospital operator

Health Management Associates

(HMA)

. "Remember, when hospitals have fewer admissions, that boosts the bottom line of HMOs."

Cramer mentioned

Gammon Lake Resources

(GRS)

as a possible short-term trade, citing out-of-the-money options activity as evidence "something is going on."

"This whole group is making a comeback," Cramer predicted, although the upside would be more like K-2 than Mount Everest. "K-2 is a nice hike."

At the time of publication, Cramer was long UnitedHealth.

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