Rule No. 3: Don't Buy All at Once

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 third rule of investing.

---

No broker likes to fool around with partial orders. No financial adviser has the time to buy stocks methodically over time. The game is to get the trade on, at one level, in a big way. Make the statement buy. Get the position on the sheets or in the portfolio. ...