On July 21, Vicor Corporation rose 5.26% overnight, trading at $243.14/share, with turnover of $159,000. The stock rallied ahead of its scheduled pre-market Q2 earnings release, driven by the company's upward revision of revenue guidance.

Vicor Corporation previously raised its Q2 revenue guidance to $142 million, surpassing the market consensus estimate of $138 million. The quarter is expected to deliver revenue growth of 43.49% year-over-year, with adjusted earnings per share of $0.64, representing approximately 360% year-over-year growth. EBIT is projected at $33.2 million, up roughly 340% from the prior year period. The significant earnings leverage reflects improving demand dynamics across the company's modular power component portfolio. The stock had previously retreated to around $216 amid sector softness and major shareholder selling, and the raised guidance prompted early positioning by investors ahead of the official results.

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