Jim Cramer's Stop Trading! Buy Crocs

"Press the bets on Crocs (CROX Quote)," Jim Cramer said Wednesday on CNBC's "Stop Trading!" segment.

Cramer said the seller of plastic shoes, up 1% at $78.45 after earlier setting a 52-week high, will continue to rise, as will Six Flags (SIX Quote), which Cramer expects to hit $9 from a recent $6.

Cramer also said he doesn't agree with former Fed chief Alan Greenspan's remark that he expects a "dramatic contraction" in Shanghai, where the market has risen 45% off February's one-day 9% plunge. "There will be some serious selloffs," Cramer said, but China isn't like Japan's market circa 1989, because China "has growth."