Polkadot (DOT)

A multi-chain protocol that lets independent, purpose-built parachains share Relay Chain security and talk to each other through XCM, Polkadot has spent 2026 rebuilding its economic base — capping DOT's supply, opening the Agile Coretime marketplace, and now moving to seed a native, protocol-owned stablecoin. In September, DOT holders approved $5 million in treasury funding to launch dotUSD with near-unanimous support, even as the network's next major leap, the JAM upgrade, continues toward a targeted 2027 production rollout.