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.

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Philip W. van Doorn is a member of TheStreet's banking and finance team, commenting on industry and regulatory trends. He previously served as the senior analyst for TheStreet.com Ratings, responsible for assigning financial strength ratings to banks and savings and loan institutions. Mr. van Doorn previously served as a loan operations officer at Riverside National Bank in Fort Pierce, Fla., and as a credit analyst at the Federal Home Loan Bank of New York, where he monitored banks in New York, New Jersey and Puerto Rico. Mr. van Doorn has additional experience in the mutual fund and computer software industries. He holds a bachelor of science in business administration from Long Island University.