Bank of America CEO Brian Moynihan is the worst big bank boss in the country, an analyst claims.

Moynihan is at the bottom of a ranking by Credit Agricole analyst Michael Mayo of bank CEOs by the performance of their company’s stocks since each one took over, Fortune reports.

B of A’s shares have fallen by 42% since Moynihan became CEO in early 2010.

Mayo also insists Moynihan made a big mistake in waffling on whether the bank would charge customers a fee for using their debit cards and notes that he, like other bank CEOs, was slow to stop problems in company’s mortgage servicing division.

The best-performing CEO, according to Mayo’s ranking, is PNC Financial Services Group head, Jim Rohr. Share of the Pittsburgh-based bank are up 43% since Rohr took the top spot in mid-2000.