NEW YORK ( TheStreet) -- Bank stocks were flat Friday, rounding-out 2010 with little trading action. The KBW Bank Index ( BKX) was up just 0.02%, closing at 52.22. Among the winners in the financial sector on Friday were Wells Fargo ( WFC - Get Report), Regions Financial ( RF) and M&T Bank Corp. ( MTB - Get Report) which were up 1% apiece. Looking over the past year tells a different story. The best-performing bank stocks during 2010 among the 24 bank and thrift holding companies included in the KBW Bank Index were Huntington Bancshares ( HBAN - Get Report) and Zions Bancorporation ( ZION - Get Report), which each saw total returns of 89% during 2010. The largest four U.S. bank holding companies, Citigroup ( C - Get Report) led the way with a 43% total return, as CEO Vikram Pandit proceeded with his plan to shrink the company and the U.S. Treasury sold-off its holdings of the company's common shares. Among the big four, Wells Fargo placed second with a 16% total return, followed by JPMorgan ( JPM - Get Report), with shares returning 2% for the year. Bank of America's ( BAC - Get Report) shares were down 11% for 2010, with continued uncertainty on possible buybacks of mortgage-backed securities, which are a legacy of Countrywide Financial, which was acquired in July 2008. The only other component of the KBW Bank Index was down for the year was People's United Financial ( PBCT - Get Report), with shares returning -12%, assuming reinvestment of dividends. Other winners for 2010 among the largest banks included in the KBW Bank Index were KeyCorp ( KEY - Get Report), with a 60% total return for the year, Fifth Third ( FITB - Get Report), with shares returning 51% and SunTrust ( STI - Get Report), whose shares returned 46% for the year. -- Written by Philip van Doorn in Jupiter, Fla. To contact the writer, click here: Philip van Doorn. To follow the writer on Twitter, go to http://twitter.com/PhilipvanDoorn. To submit a news tip, send an email to: email@example.com.