At 9:00 AM Central European Time, the Swedish stock exchange opened — and Sivers Semiconductors exploded. From €60 to €97 in one session. +60%. Europe's best stock of 2026.
The Story Behind It
Sivers is a Swedish chip company 99% of investors have never heard of. They don't build traditional processors. They develop photonics chips for optical interconnects in AI data centers.
What that means: The world's largest data centers (NVIDIA, Microsoft, Meta) need faster and faster data connections between their AI chips. Traditional copper cables are too slow. Light is faster. This is where Sivers comes in.
The company has a quasi-monopoly in SOI substrates for photonics — the foundation for next-generation optical interconnects. Their potential order value: $453 million (+64% year-over-year), primarily from the AI sector.
Revenue? Still small: €27 million in 2025 (+25% YoY). But investors aren't betting on today, they're betting on 2028. If every hyperscale data center switches to optical connections, Sivers will be one of the few suppliers.
Why You Should Care
+947% in one year. Anyone who invested €1,000 twelve months ago has €10,470 today. Sounds like a fairy tale — but it happened.
But the story isn't risk-free: 17% of free-floating shares are currently shorted (hedge funds betting on falling prices). Analysts are split. Some see a "new ASML" (European chip monopoly), others warn of overvaluation.
The company is small (€1.8 billion market cap), volatile, and the stock can fall as fast as it rose. Anyone buying after today is coming after the rally — not before.
How Pros Are Reacting
Funds like Walleye Capital and Voleon Capital Management built short positions in May (0.5% and 0.53% of capital respectively). Total short interest: 6.43% of shares.
That means: Large investors believe the price is too high and are betting on correction. Meanwhile, retail traders keep buying — a classic tug-of-war.
If short-sellers are right, the stock could correct 30-50%. If bulls are right and Sivers actually wins major contracts with hyperscalers (e.g., Microsoft, Google Cloud), it could keep running.
First Steps for Beginners
When a stock makes +947% in 12 months, that's not normal movement. Such rallies happen when:
- A small company suddenly becomes strategically important (here: AI infrastructure)
- Investors recognize potential early and buy massively
- FOMO (Fear Of Missing Out) kicks in — everyone wants in
But entering after such a rally is dangerous. You're not buying "at the beginning of the story", you're buying at the end of the first wave. Pros call this "Buying the top".
Better: Understand how such opportunities arise, to find the next Sivers before the rally. That means:
- Watch small European tech companies that own strategic technology
- Check order growth and customer list (who's buying from them?)
- Accept volatility — such stocks can swing 50%
Disclaimer: This article is for informational purposes only and does not constitute investment advice. Past performance is not an indicator of future results.