On Thursday's "Mad Money" TV show, Jim Cramer said that while Celgene's ( CELG) stock is not doing very well, the company is doing just fine.

The stock is trading near its 52-week low. Earlier this week, it reported disappointing earnings and lowered its outlook. But Cramer, who owns Celgene for his Action Alerts PLUS charitable trust, says the company's fundamentals are still strong, it has excellent management and $3.1 billion in cash, and its earnings should grow 20% for 2009.

The stock closed up $1.38, or 3.4%, at $42.15 on Friday.

In the Sell Block on Thursday was U.S. Oil ( USO). Cramer said that oil ETFs were some of the worst investments viewers could make. U.S. Oil, for example, had fallen at almost twice the rate of crude oil since the fund's inception -- 54% vs. crude oil's 23%. He told viewers to stay away.

On Friday, the fund was down 5 cents at $30.93.

In his "Lightning Round" segment, Cramer said that he would not sell Yahoo! ( YHOO) until its new CEO had been on board for at least nine months, when he predicts that "that stock turns around."

On Friday, Yahoo! closed up 39 cents, or 3%, to $13.34.

He recommend Nordic American Tanker ( NAT) over DryShips ( DRYS), saying that while Dry Ships is in default, NAT is "a great company with a great yield.

On Friday, Nordic American Tanker closed up 43 cents, or 1.4%, at $30.88, while DryShips was down 9 cents, or 1.7%, at $5.25.

Finally, he said he didn't like Hartford Financial ( HIG). He said the company's policies will pay off, but he doesn't like the stock.

Hartford closed up 81 cents, or 10.2%, at $8.74.
At the time of publication, Cramer was long Celgene.

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. Watch Cramer on "Mad Money" weeknights on CNBC. Click here to order Cramer's latest book, "Mad Money: Watch TV, Get Rich," click here to order his 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.

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