S&P 500 drops 0.41% in a session of sharp contrasts

United Rentals and Semiconductors Soar

United Rentals saw the largest increase on the index with a surge of 22.92% to $986.78, propelling the industrial equipment rental specialist to the top. The semiconductor sector also shone: Texas Instruments gained 19.43% to close at $282.23, while Microchip Technology and ON Semiconductor both climbed about 9.9%, to $90.64 and $97.78 respectively. Rail transport joined the rally, with Union Pacific rising 8.77% to $271.26 and Norfolk Southern up 7.75% to $321.44. Comcast also benefited from the appetite for some traditional stocks, gaining 7.73% to $31.64.

ServiceNow Dives; Tech Sector Under Pressure

Conversely, ServiceNow experienced the largest drop in the S&P 500 with a decline of 17.75% to $84.78, highlighting the fragility of certain valuations in technology services. Salesforce followed the same trend with a decrease of 8.69% to $173.30, as did Workday, which fell by 9.42% to $114.67. The healthcare sector was not spared: Thermo Fisher Scientific lost 9.20% to close at $466.70, while Bio-Techne dropped 10.89% to $52.20. Sports apparel also suffered, with lululemon athletica decreasing by 13.33% to $141.66, and commodities retreated as Freeport-McMoRan fell by 12.62% to $61.48.

A Mixed-Speed Session

This April 23 session confirmed the fragmentation of trends in the US market. The S&P 500, at 7,108.4 points after a 0.41% decline, reflects a session where sharp sector rotations overshadowed any overall momentum. Between occasional euphoria in industrials and semiconductors on one side, and severe corrections in tech and healthcare on the other, the day presented a mixed picture without a clear direction for investors.