Wells Fargo ( WFC) and JPMorgan ( JPM) are the only bank stocks you need to own, James Cramer said Wednesday on CNBC's "Stop Trading!" segment.

Referring to the Kiefer Sutherland character in Fox's 24, Cramer said JPMorgan chief Jamie Dimon is "the Jack Bauer of bank stocks." He said that though some people are worried about the prospect of the bank shopping for another acquisition, "some guys know how to do deals that are accretive," and Dimon is one of those. Cramer added that JPMorgan's latest quarter showed that "every single cylinder is finally firing."

By contrast, Cramer said, Citigroup ( C) is wandering around aimlessly and Bank of America ( BAC) seems strangely intent on hurting shareholders with a dilutive acquisition. Cramer said he'd sell those stocks.

Cramer would "back up the truck" and buy Northern Trust ( NTRS), off 4% Wednesday at $60. He called the bank a "consistently well-run company" that's being hit because Wall Street is "for a nanosecond disappointed" with the latest quarter's numbers. "This is a good situation," he said.

Another good situation is that of MasterCard ( MA), which has tripled since Cramer got behind it and is now poised to break through $110 from a recent $109. "This one won't be constrained by the February 110 strike," Cramer said. "The shorts will be routed."

Cramer was less enthusiastic about Wednesday's rally in the homebuilders, which took Lennar ( LEN) up 5% even as the company swung to a big fourth-quarter loss and offered highly conditional earnings guidance for 2007. Cramer said he would sell the rally.
At the time of publication, Cramer had no positions in stocks mentioned.

Jim Cramer is a director and co-founder of TheStreet.com. He contributes daily market commentary for TheStreet.com's sites and serves as an adviser to the company's CEO. Outside contributing columnists for TheStreet.com and RealMoney.com, including Cramer, may, from time to time, write about stocks in which they have a position. In such cases, appropriate disclosure is made. To see his personal portfolio and find out what trades Cramer will make before he makes them, sign up for Action Alerts PLUS. Listen to Cramer's RealMoney Radio show on your computer; just click here. Watch Cramer on "Mad Money" at 6 p.m. ET weeknights on CNBC. Click here to order Cramer's latest book, "Real Money: Sane Investing in an Insane World," click here to get his second book, "You Got Screwed!" and click here to order Cramer's autobiography, "Confessions of a Street Addict." While he cannot provide personalized investment advice or recommendations, he invites you to send comments on his column by clicking here.

TheStreet.com has a revenue-sharing relationship with Traders' Library under which it receives a portion of the revenue from Traders' Library purchases by customers directed there from TheStreet.com.