Market Snapshot: Dow, S&P 500, Nasdaq end at all-time highs, extending win streak as traders wait for outcome of Federal Reserve policy meeting

U.S. stock indexes end at record highs Tuesday, extending their winning streak as the Federal Reserve began a pivotal two-day policy meeting.

U.S. stock indexes end at record highs Tuesday, extending their winning streak as the Federal Reserve began a pivotal two-day policy meeting.