Aggressive management, loan reserves, and write-offs enabled the bank to restore its asset quality. During Christopherson's six years at Northern Trust, profits rose from $34 million to $113 million. At the time of his retirement in 1990, the company was the 11th most profitable of the 100 largest banks in the United States.
Northern Trust's profitability improved significantly under Christopherson's leadership, thanks to prudent management, loan reserves, and write-offs. Over six years, profits grew from $34 million to $113 million. By the time of his retirement in 1990, the company had become one of the most profitable banks in the United States.