Stocks have historically reacted well to Fed rate cuts. Since 1971, the first Fed cut has led to positive returns for investors 100% of the time in the next six months, with an average gain of 13%, according to Fundstrat's Tom Lee.

SolarEdge Technologies is down 5% after shares of the solar-power-equipment maker were downgraded to Underperform from Hold at Jefferies and the price target cut to $17 from $27. S&P 500 futures are up 0.3%. Dow Jones Industrial Average futures are adding 0.2%.

The blue chip index closed above the psychologically significant 42,000 level for the first time ever Thursday.