An index of Inland Northwest stocks fell 8.9 percent during the second quarter, but nevertheless outperformed the S&P 500 Index, according to Hart Capital Management. The Spokane investment firm said a rebound in the value of two Spokane banks – Northwest Bancorporation, up 30.5 percent, and W.T.B. Financial Corp., up 25 percent – helped offset setbacks for Coldwater Creek, down 51.4 percent, and Idaho Independent Bank, down 30.8 percent.