Super Micro Computer Shares Lead S&P 500 With 9.12% Midday Gain

Super Micro Computer Inc. shares led the S&P 500’s midday gainers with a 9.12% rise Oct. 21 after the company raised its fiscal first-quarter 2027 revenue estimate to $18.5 billion to $19.5 billion.

Super Micro replaced its earlier estimate of $14.5 billion to $15.5 billion. The company attributed the higher range primarily to increased demand for AI platforms. The fiscal quarter ended Sept. 30.

Shares had gained 11.5% at the U.S. open, as covered in an earlier market update. In the midday ranking, EchoStar Corporation rose 7.97%, followed by Charles River Laboratories at 7.79%, Datadog at 7.49% and Bloom Energy at 6.85%.