(Updated to reflect closing stock prices throughout, adds paragraph on Goldman Sachs.)Bank stocks finished mixed Wednesday, with Wells Fargo ( WFC) and Morgan Stanley ( MS) losing ground after each reported quarterly results before the start of trading. Morgan Stanley posted a second-quarter net loss from continuing operations of $1.37 a share, worse than the Thomson Reuters average estimate for a loss of 49 cents a share. Revenue fell 11.3% from a year ago to $5.41 billion, above the consensus of $5.35 billion. The latest quarter's results included a charge of $1.32 a share related to continued improvement in Morgan Stanley's debt-related credit spreads and 74 cents a share related to the repurchase of Troubled Asset Relief Program, or TARP, capital. On the other hand, Wells Fargo easily blew past Wall Street's estimates as net income surged 81%. The bank posted second-quarter earnings of 57 cents a share, well above the consensus estimate of 34 cents a share. Revenue rose 28% from a year ago to $22.5 billion, also higher than expectations. However, concerns over Wells Fargo's credit losses pressured shares. The bank said net loan charge-offs rose to $4.39 billion in the second quarter, up from $3.26 billion in the previous quarter. Wells Fargo also said that nonperforming loans, which no longer generate revenue as they are past due or in default, rose to $18.3 billion in the quarter, an increase of 45.4% from the first quarter. Morgan Stanley shares dropped as low as $25.88 earlier in the session before turning positive late in the day. Ultimately, shares lost 2 cents to $27.54.