NEW YORK ( TheStreet) -- Stocks of large U.S. banks showed strength on Friday as disappointing economic reports shed light on the quandary facing the Federal Open Market Committee when it decides whether or not to curb the Federal Reserve's "QE3" bond purchases next week. The KBW Bank Index ( I:BKX) rose slightly to close at 63.68, with , with 15 out of 24 index components ending with gains. Big banks seeing shares rise nearly 1% included JPMorgan Chase ( JPM), with shares closing at $52.59, as investors shrugged off a Wall Street Journal report that the bank would add 5,000 employees to handle regulatory compliance and risk-management problems, and that related expenses and provisions for litigation reserves would total $4 billion during the second half of 2013. Other large banks seeing shares rise nearly 1% included U.S. Bancorp ( USB) of Minneapolis, with shares closing at $37.14 and Huntington Bancshares ( HBAN) of Columbus, Ohio, at $8.52. The Commerce Department on Friday estimated that U.S. retail sales during August grew by 0.2% from July and 4.7% from August 2012. The month-over-month growth rate was down from an upwardly revised 0.4% in July. Economists polled by Thomson Reuters had estimated August sales would show a sequential increase of 0.4%. The Reuters/University of Michigan consumer sentiment reading for September was 76.8, which was the lowest level since April. Economists surveyed by Thomson Reuters were expecting a reading of 82.