Based on a ranking analysis released on Wednesday by Virginia-based research firm SNL Financial, Bank of America Corporation (BAC) still remains the highest ranked banking institution in U.S. by second-quarter total assets. The analysis was based on the filings of Federal Deposit Insurance Corporation (FDIC). According to the filing, as of June 30, 2009, Bank of America has total assets of $2.3 trillion and total deposits of $971 billion.   Earlier this week, Bank of America offered to repay a part of the $45 billion it had received from the U.S. government in relation to its participation in the Troubled Asset Relief Program (TARP). Also, the repayment offer was aimed to end a loss-sharing deal with the government related to its acquisition of Merrill Lynch & Co. The completion of the payments would enable Bank of America to reduce part of government involvement in its affairs....