[BRIEFING.COM] The S&P 500 (+0.20%) is in second place on Thursday afternoon, up about 12 points.
Briefly, S&P 500 constituents Moderna (MRNA 40.86, +2.36, +6.13%), Carmax (KMX 81.41, +3.14, +4.01%), and Marathon Petroleum (MPC 153.26, +5.65, +3.83%) pepper the top of today's standings despite a dearth of corporate news.
Meanwhile, Leidos (LDOS 150.74, -10.37, -6.44%) is one of today's worst-performing constituents; weakness comes despite securing a $2.6 billion TSA contract to sustain 12,000 security units across 430+ airports.