Meet the world's youngest self-made woman billionaire. Luana Lopes Lara, a former ballerina from Brazil, cofounded prediction market firm Kalshi and built it into an $11 billion startup in just six years. ⁣ ⁣ See where she lands on the 2026 #ForbesBillionaires list at the link in our bio. 📸: Alexander Karnyukhin for Forbes