(Reuters) - Bank of America Corp got stung by lower interest rates in the fourth quarter, sending its profit down 4%, a trend that management expects to continue this year.

FILE PHOTO: A Bank of America building is seen in Los Angeles, California, U.S., May 6, 2019. REUTERS/Lucy Nicholson

The Charlotte, North Carolina-based lender is especially vulnerable to rate movements because of the composition of its balance sheet. As the Federal Reserve cut rates three times last year, analysts predicted Bank of America’s earnings would suffer.

The bank blunted the impact last quarter by growing loans at a rapid clip, and managed to beat Wall Street’s quarterly forecasts. But Bank of America shares fell 2% in morning trading after Chief Financial Officer Paul Donofrio said net interest income will decline through the first six months of 2020.

Donofrio expects to improve that metric later in the year by growing loans and reducing interest rates on deposits, but predicted Bank of America’s net interest income will be “modestly” lower for the full year.

Analysts gave Bank of America credit for the way it has handled lower rates, with Wolfe Research’s Steven Chubak calling its performance “impressive” and Oppenheimer’s Chris Kotowski saying interest income “held up very well.”

“The rate environment definitely has an impact, but it isn’t insurmountable,” he said in a note to clients.

The bank’s results were also helped by bond trading, whose revenue rose 25% to $1.8 billion.

The bond trading business performed well across Wall Street, with JPMorgan Chase & Co, Citigroup Inc and Goldman Sachs Group Inc reporting even bigger revenue jumps. The increase was largely due to easy comparisons with the year-ago quarter.

Trading is a small part of Bank of America’s income statement compared with consumer banking, its biggest business. Revenue there fell 5% to $9.5 billion, largely due to lower rates.

The bank’s net interest margin, which measures how profitably a bank can lend out depositors’ funds, fell to 2.35% from 2.52% a year earlier, and from 2.41% in the prior quarter.

Still, Bank of America managed to grow loans 6%, far outpacing increases at Citigroup Inc and JPMorgan Chase & Co. Its deposits grew 5%.

Overall, the bank’s profit fell to $6.75 billion from $7.04 billion a year earlier. Excluding special items, the bank earned 75 cents per share, beating the average analyst estimate of 68 cents, according to Refinitiv.

Revenue fell slightly to $22.35 billion.