Big Five U.S. Banks Brace for 11% Dip in Trading Revenue

Slump in bond trading will likely hit Wall Street's bottom line

After four straight quarters of rising income from trading, the biggest U.S. investment banks spent the past few months in a renewed slump. Shareholders will soon see how dull it’s been. Analysts estimate the five largest firms will say their combined revenue from trading dropped 11 percent from a year earlier to $18.4 billion -- the smallest haul for a second quarter since 2012. The banks start posting results Friday.

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