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Nebius Group (NBIS) is a relatively new entrant in the artificial intelligence (AI) space that has scaled at an extraordinary pace. In just about a year and a half, the company has built what it describes as a global AI cloud platform, quickly establishing itself as a major provider of AI computing infrastructure. While the stock has climbed “just” 35% so far in 2026, Nebius shares are up 453% over the past year, wildly outperforming the S&P 500 Index’s ($SPX) 30% gain.
Is this a hidden AI gem or too risky to touch now?