Bank of America shares hit their lows of the day shortly after influential financial analyst Mike Mayo downgraded the stock, citing the need for the firm to raise capital to cover mortgage-related settlements.

Bank of America flag

“On July 20th, we lowered our rating on Bank of America a notch and said that we prefer Wells Fargo and we reiterate this view with another downgrade of (BAC) to (underperform) from (outperform) given less confidence that (BAC) will not have to raise capital,” said Mayo of CLSA in a note. “The market could force this outcome if CDS spreads continue to widen.”