U.S. stock indexes are drifting closer to their records Monday as Wall Street gears up for the most anticipated meeting of the Federal Reserve in years.

U.S. stocks tumbled to their worst day since an early August sell-off after another report raised worries about the economy's health

Wall Street was mixed early Monday as optimism over a potentially big rate cut from the Federal Reserve this week boosted most sectors, with the exception of technology stocks. Futures for the S&P 500 were unchanged before the bell,