The 15 newsletters startups are paying for in 2026

  Michael Burry launched a paid newsletter, Cassandra Unchained, in late 2025. Within months, it was the No. 8 most-subscribed publication across all Brex customers, racing ahead of writers who spent a decade building their base. Burry’s two-decade-old reputation for contrarian calls made his newsletter a line item on startup corporate cards within months. That’s