Amid yet another bearish session for the financial sector, Downey Financial ( DSL) took a fall after hopping on the third-quarter earnings-warning bandwagon. Shares of the Newport Beach, Calif., bank sank 7.2% to $55.12 on word it will likely take an operating loss of $23 million, or 84 cents a share, as its credit-loss provision more than doubles to about $144 million (pretax). CEO David Rosenthal cited recent housing-market travails, which he said induced a "significant" rise in single-family loan delinquencies and losses from foreclosures. Thornburg Mortgage ( TMA) slid again on a Keefe Bruyette downgrade to underperform, which comes on the heels of the mortgage lender's own third-quarter bad tidings . The analyst set a $10 price target. Shares of the Santa Fe, N.M., firm were down 32 cents, or 2.6%, to $11.97. Elsewhere, Bank of America said that Genworth Financial ( GNW) has too much mortgage-insurance exposure and lowered the Richmond, Va., insurer to neutral from buy. Shares lost 4.1% to $30.33. Ohio's Progressive ( PGR), another insurer, reported a 20.8% year-over-year drop in third-quarter earnings to 42 cents a share, or $299.2 million. Thomson Financial's estimates called for 37 cents a share, excluding special items. Net premiums written, moreover, slipped 2.7% year over year to $3.58 billion. Shares were recently down 7 cents at $20.09. The NYSE Financial Sector Index, which tracks all but one of the above names, shed 0.8% to 9,632.04; the KBW Bank Index fell 1.2% to 108.83.