This Power Parts Maker's Stock Has Gained 366% in 2026. It's Rising Again Today on Boost to Growth Guidance. -- Barrons.com

By Mariapaula Gonzalez

Power electronics company Vicor jumped Tuesday after nearly doubling its sequential revenue growth guidance, driven by royalty fees from a new patent license deal for its artificial-intelligence-power technology.

Vicor raised its sequential revenue growth forecast for the fiscal third quarter to more than 20%, up from its previous 10% projection, the company said in press release.

Vicor stock rose 14% to $254.48 on Tuesday. Shares have risen 366% this year, according to Dow Jones Market Data.

Though CEO Patrizio Vinciarelli didn't disclose the company's specific clients, he said a total of four major companies, including a mix of hyperscalers and original equipment manufacturers, have now secured licenses for Vicor's patented power technology, known as Vertical Power Delivery. It's the company's core architecture for powering high-performance artificial-intelligence chips.

Vinciarelli added that the clients approached Vicor after realizing that using unlicensed power delivery components put their AI computing systems at risk of import bans from the U.S. International Trade Commission and patent infringement litigation.

Needham analyst Quinn Bolton sees Vicor's new license agreement as a strong operational success and he said was raising the firm's fiscal 2026 financial targets on Vicor. Needham expects fiscal third-quarter revenue to total $172 million, up from Bolton's previous $158 million estimate. He also anticipates adjusted earnings of $1.18 a share, up from his previous forecast of 89 cents. The firm maintained its Buy rating on the stock and its $320 price target.

This isn't the first time Vicor has raised its sequential growth forecast. In May, management raised its fiscal second-quarter revenue guidance to $142 million from $126 million, citing higher product revenue and additional royalties from an undisclosed new license.

Write to Mariapaula Gonzalez at mariapaula.gonzalez@barrons.com

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September 22, 2026 12:44 ET (16:44 GMT)