The S&P 500 and Nasdaq futures were at record highs on Thursday, propped up by a slew of stellar earnings reports and as investors shrugged off the Federal Reserve's first steps to begin paring its pandemic-era support.At 8:00 a.m. ET, Dow e-minis were down 17 points, or 0.05%, S&P 500 e-minis were up 5.25 points, or 0.11%, and Nasdaq 100 e-minis were up 60.5 points, or 0.38%.Tesla Inc added 1.9% and was set for a record open, while other mega-cap technology titans Microsoft Corp, Google-owner A