Oklo had a mighty run in 2025. Should you invest $500 for 2026?Picture this. It's mid-October 2025, and you're a shareholder in the nuclear start-up Oklo (OKLO +8.42%). You bought shares in January 2025, and your initial $10,000 stake has climbed roughly 480% to reach about $58,000.Not bad for a nuclear start-up. Until it started selling off. Fast-forward to Dec. 31, 2025, and that same position would be worth about $23,850.That's still a strong return for a company with no meaningful revenue, but investing ...