Stock Market Update

[BRIEFING.COM] The S&P 500 (+0.5%), Nasdaq Composite (+1.0%), and DJIA (-0.7%) have spent the morning trading in a mixed fashion, with solid gains in mega-cap and tech names helping the S&P 500 chart a new all-time high.

The information technology sector (+1.8%) is the top-performing S&P 500 sector by a wide margin. 

Corning (GLW 109.89, +14.94, +15.73%) is the best-performing S&P 500 name today ahead of its earnings release after the close. The company announced a multi-year deal to provide Meta Platforms (META 670.94, -1.42, -0.21%) with fiber optic solutions. 

Elsewhere in the sector, memory storage names are trading higher ahead of Seagate Tech's earnings (STX 379.54, +21.24, +5.93%), helping the PHLX Semiconductor Index (+2.8%) regain momentum after a modest pullback, and Apple (AAPL 260.82, +5.41, +2.12%) and Microsoft (MSFT 479.51, +9.23, +1.96%) continue to trade with solid gains ahead of their own earnings reports later this week.

The Vanguard Mega Cap Growth ETF is up 1.0%. 

The S&P 500 and DJIA both entered today's session less than 0.5% below their respective all-time highs. However, the DJIA has moved lower amid several earnings-related moves and a sharp sell-off in UnitedHealth (UNH 286.23, -65.41, -18.60%). The company issued weak Q1 guidance and, like other health insurer names, faces pressure following the Trump administration's proposal for a near-flat Medicare Advantage rate update for 2027. 

Meanwhile, the Russell 2000 (flat) and S&P Mid Cap 400 (-0.1%) are posting flattish performances as their momentum remains stalled as mega-caps look to reassert their leadership.