Why Is VICOR CORP (VICR) Stock Up Today?

Vicor Corp (VICR) shares climbed 6.82% to $203.68 on October 20, 2026. The primary driver was a strong revenue beat driven by artificial intelligence demand, which offset a slight miss in earnings per share.

What Happened

Vicor reported third-quarter revenue of $197.1 million, up 78.5% year over year. This figure exceeded the consensus estimate of $183.525 million by $10.08 million. The company cited surging demand for AI power technology and royalties as key contributors. Gross margin expanded to 68.3%, and net income rose to $63.3 million. Diluted earnings per share came in at $1.33, missing the consensus estimate of $1.24 by $0.04. Backlog increased 166% year over year to $406 million. The company filed a Form 8-K on October 20, 2026, to disclose these results.

What The Data Shows

The stock opened at $186.99, a 1.9% gap down from the prior close of $190.68. It hit a session high of $207.90 at 7:15 AM ET and a low of $183.91 at 9:30 AM ET. Volume was 0.4 million shares, which is 0.5 times the three-month daily average. Over the last eight sessions, the stock had fallen 27.3% from $262.32 to $190.68. The 52-week range is $57.00 to $382.65. On October 20, the stock printed 13 fresh 52-week highs and 3 fresh 52-week lows. The company has a market cap of $8.8 billion, a P/E ratio of 61.2, and a beta of 2.38. Trailing twelve-month revenue growth is 25.0%, and the net margin is 30.6%. Recent insider activity includes eight sales totaling $15.7 million in the last 90 days, with no buys. CEO Patrizio Vinciarelli sold shares on October 1 and October 2, 2026.

What To Watch

Investors will monitor the company’s ability to sustain its backlog growth and margin expansion. The stock’s high beta of 2.38 suggests significant volatility relative to the broader market.