The U.S. 10-year Treasury yield held around 4.97% on Wednesday, near its highest level in 19 years, as Federal Reserve officials reinforced expectations that interest rates could rise again this year. Markets priced roughly a 54% probability of an October increase after Richmond Fed President Tom Barkin warned inflation shocks can persist and Boston Fed President Susan Collins said inflation could remain above the Fed's 2% target. The Nasdaq Composite previously rose 0.45% to a record 27,244.28, while the S&P 500 was flat and the Dow declined 0.36%, with banks under pressure and technology shares mixed. Oil extended losses for a sixth session after President Donald Trump described U.S. contacts with Iranian envoys as a very good meeting, reducing immediate inflation concerns and potentially lessening pressure for aggressive Fed tightening.