Oct 28 (Reuters) - Bankfinancial Corp BFIN.O
* BankFinancial Corp extends and expands share repurchase
program
* BankFinancial Corp - board of directors has extended
expiration of company's current share repurchase authorization
from december 31, 2016 to june 30, 2017
* Board has increased number of shares that can be
repurchased in accordance with authorization by 478,789 shares
* Share repurchases will be funded from available working
capital
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