MrBeast’s main YouTube channel sits at 515 million subscribers as of early September 2026, following the June 12 milestone of 500 million that made him the first individual creator to reach that mark. Recent daily gains averaging 100,000–200,000 subscribers, fueled by consistent long-form challenges and Shorts, position the channel to add roughly 3–5 million more by September 30 depending on upload cadence and algorithm performance. Traders focus on this momentum alongside any surprise specials or cross-platform promotions that could accelerate growth, while noting potential slowdowns from seasonal viewing dips or competing entertainment events. Historical patterns show MrBeast sustaining elevated rates after major milestones, though exact resolution hinges on YouTube’s public count by the deadline.