Just 33 percent of managers in the bank's latest survey say corporate profits profits will improve, down from 58 percent at the start of the year.

The drop represents a "warning sign for equities over bonds, high yield over investment grade, and cyclical sectors over defensive ones," chief investment strategist Michael Hartnett wrote in a note Tuesday. "Further deterioration is likely to cause risk-off trades."

Just 33 percent of managers in the bank's latest survey say corporate profits profits will improve, down from 58 percent at the start of the year.

The drop represents a "warning sign for equities over bonds, high yield over investment grade, and cyclical sectors over defensive ones," chief investment strategist Michael Hartnett wrote in a note Tuesday. "Further deterioration is likely to cause risk-off trades."