We have another new leader as TheStreet.com's Beat the Street contest enters its final day.

"Mardan59" used an all-short portfolio made up mostly of "credit-crisis" plays such as mortgage insurers and banks to take over the top spot.

The portfolio, which totaled $302,696.90 after Thursday trading, consists of MBIA ( MBI), PMI Group ( PMI), MGIC ( MGIC), Washington Mutual ( WM), MF Global ( MF) and UAL ( UAUA).

The contestants are playing for a $5,000 prize. Check back tomorrow evening to see who won.

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

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