It's time to take stock of the bears' dirty dozen in the faltering subprime sector, Jim Cramer said Wednesday on CNBC's Stop Trading! segment.

Cramer said that with this week's meltdown of New Century ( NEWC) -- the Irvine, Calif.-based lender to homebuyers with poor credit histories -- short-sellers and others are targeting 12 players in the subprime market.

Cramer said some of the companies are doomed and others are being unfairly lumped in, but he stressed that investors must know who is in the shorts' targets before buying or selling any of these names.

These are the companies:

  1. IndyMac
  2. CharterMac (CHC)
  3. Friedman Billings (FBR)
  4. Fremont General /LI>
  5. Redwood Trust (RWT - Get Report)
  6. Newcastle Investment (NCT)
  7. American Home Mortgage
  8. Gramercy
  9. RAIT (RAS)
  10. Accredited
  11. Thornburg Mortgage
  12. CapitalSource (CSE)

At the time of publication, Cramer had no position in stocks mentioned.

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