Rule No. 10: Bad Buys Won't Become Takeovers

Editor's note: Jim Cramer's new book, Real Money: Sane Investing in an Insane World, is available in selected bookstores now. As a special bonus to RealMoney readers, we will be running Cramer's "Twenty-Five Rules of Investing." For more about the new book and to order it, click here. Today, we present Cramer's tenth rule of investing. To read about his first rule, click here; for his second, click here; for his third, click here; for his fourth, click here; for his fifth, click here; for his sixth, click here; for his seventh, click here; for his eighth, click here; for his ninth, click here.

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Nothing's more exciting than a takeover. Nothing's as lucrative. You can put on a lifetime's worth of moves in a day from a takeover. So people go to great extents to try to get them, including buying a lot of bad companies in the hope of catching one takeover. ...