Countrywide Financial Corp said Thursday that it has lined up $12 billion of secured financing to help it cope with reduced loan demand, a slumping housing market and declining investor confidence.

The announcement boosted shares in the beleaguered stock nearly 10 percent in early trading.

Countrywide said it lined up the financing through new or existing credit facilities but did not elaborate. This round of financing comes less than a month after the company drew $11.5 billion from credit facilities to fund loans because it was unable to sell short-term debt on the secondary market.

The company also said that it had funded $34 billion in mortgages for August, marking the slowest month this year for the Calabasas-based lender and more than 17 percent less than the same period a year earlier. Countrywide’s pipeline of unclosed mortgages also fell 17 percent from July to $52 billion.

Countrywide said that the summer slump in lending was partially due to the company not making home loans that don’t meet its own heightened criteria, or making loans that aren’t eligible to be backed by Fannie Mae and Freddie.

Countrywide’s pullback from subprime loans also continued. Of the loans issued in August, less than 4 percent were subprime about the same as July, the company said.

Shares in Countrywide jumped 8 percent, or $1.35, to $17.97 in afternoon trading Thursday on the New York Stock Exchange.