The world's biggest banks won a major victory on [March 29] when a U.S. judge dismissed a substantial portion" of the claims in private lawsuits accusing them of rigging global benchmark interest rates. The 16 banks had faced claims totaling billions of dollars in the case. The banks include: Bank of America, Citigroup, Credit Suisse, Deutsche Bank, HSBC Holdings, JPMorgan Chase, [and others]. They had been accused by a diverse body of private plaintiffs, ranging from bondholders to the city of Baltimore, of conspiring to manipulate the London Interbank Offered Rate (Libor), a key benchmark at the heart of more than $550 trillion in financial products. In a significant setback for the plaintiffs, U.S. District Judge Naomi Reice Buchwald in Manhattan granted the banks' motion to dismiss federal antitrust claims and partially dismissed the plaintiffs' claims of commodities manipulation. She also dismissed racketeering and state-law claims. Buchwald did allow a portion of the lawsuit to continue that claims the banks' alleged manipulation of Libor harmed traders who bet on interest rates. Small movements in those rates can mean sizable gains or losses for those gambling on which way the rates move. Buchwald's decision may make it more likely that banks will talk settlement with a significant win in their pocket. The decision also could cast doubt on some of the highest analyst projections about potential Libor damages, and quell some concerns that the banks have not reserved enough for litigation expenses.