MrBeast’s main YouTube channel sits at 515 million subscribers as of early September 2026, following steady gains of roughly 100,000–250,000 per day in recent weeks after crossing 500 million in June. Regular long-form challenges, giveaways, and high-production videos continue to drive engagement and new subs, while shorts and cross-platform promotion sustain momentum. With only 25 days until the September 30 deadline, traders are focused on upload cadence and any major releases that could accelerate growth beyond the recent average. Historical patterns show MrBeast adding tens of millions of subscribers over multi-month stretches, but the compressed timeframe makes near-term video performance and daily tracking the key swing factors for these time-sensitive markets.