Financial Winners & Losers: KeyCorp

SunTrust Banks (STI Quote) closed up $1.32, or 4.7%, to $29.63.

In a note to clients Tuesday, Fox Pitt Kelton analyst Albert Savastano maintained an outperform rating on PNC Financial Services (PNC Quote), noting the potential for greater cost savings due to the pending acquisition of National City (NCC Quote) Savastano also said the combined company will have below-average credit risk.

PNC closed up $3.62, or 7.5%, to $52.17.

Meanwhile, Moody's Investors Service said Monday that it may downgrade the debt ratings on Marshall & Ilsley (MI Quote), and expressed concern over weakness in the regional bank's real estate portfolio.

Marshall & Ilsley shares finished lower 23 cents to $13.92 in afternoon trading.

Other decliners included Regions Financial (RF Quote), which closed higher by 3 cents to $9.41, and Comerica (CMA Quote), which closed up $1.07 to $20.27.