Land mines abound. Any secondary that is underwater seems to just be out more sellers even on a day when the

Dow

has some pop in it. You have to be very careful to be sure that you aren't stepping on one. Before you buy a stock ask yourself if the company did a deal in the last month or two that did not hold.

For example, this morning I saw

EDS

(EDS)

TheStreet Recommends

up a buck and a half and I thought about taking some stock. But then I remembered that we got fried in a secondary in the name earlier this year.

Land mine.

Sure enough, the stock quickly retreated and is now handing out up a half-point. That's exactly what I am trying to avoid.

Before you buy a stock, call up the recent history. If you see a secondary overhang, look out!

James J. Cramer is manager of a hedge fund and co-founder of TheStreet.com. At time of publication, his fund had no positions in any stocks mentioned. His fund often buys and sells securities that are the subject of his columns, both before and after the columns are published, and the positions that his fund takes may change at any time. Under no circumstances does the information in this column represent a recommendation to buy or sell stocks. Cramer's writings provide insights into the dynamics of money management and are not a solicitation for transactions. While he cannot provide investment advice or recommendations, he invites you to comment on his column at

jjcletters@thestreet.com.