[BRIEFING.COM] The S&P 500 (+0.91%) is in second place this afternoon, up about 65 points.
Briefly, S&P 500 constituents Iron Mountain (IRM 125.69, +11.17, +9.75%), Ciena (CIEN 521.38, +45.99, +9.67%), and O'Reilly Auto (ORLY 98.33, +6.64, +7.24%) pepper the top of the standings. IRM and ORLY rise after earnings reports.
Meanwhile, Willis Towers Watson (WTW 256.42, -33.69, -11.61%) is today's worst laggard after a mixed Q1 showing where EPS beat expectations but revenue slightly missed and investors focused on management commentary highlighting ongoing organic growth headwinds and a more challenging global demand backdrop.