US STOCKS-Wall St Ends Tumultuous Week with Strong Rally as Rate Hike Fears Wane
* Banks have biggest percent gain in 18 months* Citigroup jumps after results* S&P, Dow end five-day losing streaks* Retail sales beats estimates* Indexes up: Dow 2.15%, S&P 1.92%, Nasdaq 1.79%U.S. st