Vicor buyback completion puts recent trading in context

Vicor (VICR) recently updated investors on its share repurchase activity, confirming that from April 1 to June 30, 2026 it bought back no additional shares under its existing authorization.

This update means Vicor has now completed repurchases of 805,324 shares, equal to 1.79% of its stock, for a total outlay of US$35.92 million under the buyback first announced on July 31, 2024.

At a last close of US$221.20, Vicor’s recent 7 day share price return of 6.67% contrasts with a share price decline of 18.69% over 30 days and 29.32% over 90 days. Its 1 year total shareholder return of 372.25% and 3 year total shareholder return of 191.44% point to strong longer term gains and suggest momentum has cooled recently after a strong run.

If Vicor’s sharp swings have you thinking about diversification, it could be a useful moment to see what else is moving across 56 AI infrastructure stocks

After that sharp reset in Vicor’s share price, the choice becomes practical. Do you treat today’s level as a fresh opportunity, or wait in case recent volatility offers an even cheaper entry ahead?

Most Popular Narrative: 42.7% Undervalued

The most followed Vicor narrative puts fair value at $386.25 compared with the last close at $221.20. That gap rests on some punchy growth and margin assumptions.

The accelerated adoption of high-power, high-density AI computing in data centers is driving demand for advanced power delivery solutions. Vicor's Gen 5 vertical power delivery products and 800V-to-48V converters target this need, with customer engagements and sampling set to expand in Q3 and Q4. These next-gen products enable Vicor to address a market expected to exceed $5 billion by 2027, supporting long-term revenue growth and eventual margin expansion as manufacturing scales.

Want to see what underpins that valuation gap for Vicor? The core narrative leans heavily on rapid revenue expansion, rising margins, and a future earnings profile that assumes premium multiples.

Result: Fair Value of $386.25 (UNDERVALUED)

However, that Vicor narrative can be knocked off course if licensing and litigation income proves less reliable, or if high fixed costs keep margins under pressure.

Another view on Vicor valuation

Analysts currently value Vicor relative to a US$386.25 price target. Our DCF model points in a different direction. On that basis, Vicor at US$221.20 trades above an estimated future cash flow value of US$171.68, which implies the stock screens as overvalued on a cash flow basis today.

For readers who rely on cash flow based work, the SWS DCF model helps you see exactly how that gap is built up, and where your own assumptions might differ from the market. Look into how the SWS DCF model arrives at its fair value.

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Vicor for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover 52 high quality undervalued stocks. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Next Steps

With Vicor pulling in both risks and rewards, it makes sense to move quickly and check the detail for yourself. To weigh those cross currents properly, start with the full mix of 3 key rewards and 3 important warning signs

Looking for more investment ideas beyond Vicor?

If Vicor has your attention, use this moment to widen your watchlist. Fresh ideas now can help you stay prepared when markets shift again.

• Spot potential bargains early by scanning companies that combine quality and attractive pricing through the 52 high quality undervalued stocks.
• Prioritise resilience by focusing on businesses with strong finances using the solid balance sheet and fundamentals stocks screener (48 results).
• Hunt for future standouts by searching lesser known stocks with robust fundamentals through the screener containing 21 high quality undiscovered gems.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.