Vicor Corporation's stock plummeted 7.06% during intraday trading on Monday, extending its recent pullback as selling pressure intensified.

The decline follows a significant post-earnings rally driven by the company's better-than-expected FY26Q1 results, which included revenue and EPS beats, ahead-of-schedule capacity expansion, and the addition of Cerebras as a core incremental customer. However, the stock has faced sustained downward pressure due to insider selling, with executives including Director Tuozzolo Claudio and Director Schmidt James F reducing their positions, combined with concentrated short-term profit-taking from the recent gains.

Broad weakness in the Electrical Components & Equipment sector also contributed to the bearish sentiment, with several peers trading lower during the session.