TheStreet.com's Beat the Street contest, saw the shorts take the lead on Monday.

Leader Bebeto boosted her portfolio to $270,933 on five shorts, including Dryships ( DRYS) and Excel Maritime ( EXM).

Right behind Bebeto is 1Ivanhoe, who also went all short, boosting the $250,000 seed money into $269,172 on shorts of Cleveland Cliffs ( CLF - Get Report) and China Sunergy ( CSUN). Momotrader stands in third place with one long, Agfeed ( FEED). And the top five is rounded out by VW72Chevy, who also had just one long, VeraSun ( VSE), and FastisSlow, who is all short.

Under the rules of the weekly contest, players will be able to switch one of their five stocks between Tuesday's market close and Wednesday's market open.

Contestants looking to research their changes should take a look at Patrick Schultz's weekly Power Stock Rankings, which features a rare all-buy list.

Players should also consult Stockpickr's Beat the Street forum, Fast Money's Pops and Drops, and 'Mad Money Lightning Round'.

Readers should also consult Jim Cramer's take on what investors can learn from the game.

This article was written by a staff member of TheStreet.com.