Markets: News  

The S&P 500 (-0.44%) is now tied with the tech-heavy Nasdaq Composite (-0.44%) for today's worst losses.S&P 500 constituents Enphase Energy (ENPH 193.30, -15.53, -7.44%), United Airlines (UAL 44.44, -1.85, -4.00%), and Etsy (ETSY 203.19, -8.33, -3.94%) pepper the bottom of the standings. ENHP and fellow solar peers cool off a bit on Friday following their recent rally, while UAL and ETSY, as well, both find decent losses following Thursday's rally.Conversely, Indiana-based utility company NiSource (NI 22.88, +1.02, +4.67%) stands as the best performer following afternoon activist speculation rumors.