[BRIEFING.COM] The S&P 500 (+0.64%) is up about 35 points this afternoon, hovering just off session highs.
Briefly, S&P 500 constituents Zebra Tech (ZBRA 259.20, +15.71, +6.45%), SBA Comm (SBAC 236.81, +13.53, +6.06%), and Pfizer (PFE 23.81, +0.76, +3.30%) are some of today's top performers following earnings.
Meanwhile, Regeneron Pharma (REGN 566.14, -44.72, -7.32%) is underperforming after missing Q1 earnings expectations this morning.