Shares of regional banks were mixed Wednesday, as falling oil prices were partially offset by lingering concerns over the health of the sector.

Standard & Poor's Ratings Services lowered its outlook for Regions Financial Corp. Wednesday due to concerns about the residential housing market.

Shares of Regions Financial Corp. jumped Tuesday after the regional bank assumed $900 million in deposits from a failed Atlanta area bank.

Among the stock activity stories for Tuesday, Sept. 2, from AP Financial News:

Shares of Regions Financial Corp. rose in premarket trading Tuesday, the first trading day after the regional bank said it has assumed about $900 million in deposits from failed Integrity Bank.

Among the stock activity stories for Monday, Aug. 25, from AP Financial News:

U.S. banks will unleash a tide of poor quarterly results over the next two weeks, yet investors may choose to focus instead on when a recovery might be at hand and how much more capital raising and dividend cutting will be needed to achieve it.

Several U.S. regional banks reported better-than-expected quarterly results Tuesday, and expressed confidence they could withstand soaring credit losses as the nation's housing market and economy slump.