June 14 (Reuters) - Charles Schwab (SCHW.N) expects its second-quarter revenue to drop by 10% to 11% due to a contraction in its net interest margin and softer trading activity, the brokerage firm said on Wednesday. The majority of these borrowings could be repaid before the end of 2024, Schwab said. Analysts have warned of a compression in net interest margins for financial firms, as the Fed's rate hikes drain excessive liquidity. Further increases in interest rates could add to pressure on Schwab's earnings, William Blair analysts Jeff Schmitt and Tyler Mulier wrote in a note. Fed policymakers on Wednesday left interest rates steady but signaled they would rise by half a percentage point by the end of the year.

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Persons: Charles Schwab, Schwab, William Blair, Jeff Schmitt, Tyler Mulier, Blair, Niket Nishant, Sri Hari, Vinay Dwivedi, Maju Samuel Organizations: Federal Home Loan Bank, Federal, Thomson Locations: The Texas, Sri, Bengaluru