Aave V4 just opened its first specialized liquidity hub, and it’s built entirely around one stablecoin ecosystem. The Global Dollar Hub, sometimes called the Paxos Hub, went live with PT-USDG (September 2026) as its inaugural collateral asset, giving users a new way to borrow stablecoins against fixed-rate Pendle principal tokens.
This is the first real-world test of Aave’s hub-and-spoke architecture, a modular system introduced in March 2026.
How the Global Dollar Hub actually works
Users deposit PT-USDG-24SEP2026, a Pendle principal token that matures in September 2026, as collateral. In return, they can borrow USDC and USDT directly from the hub. USDG itself is available too, but through a cross-hub credit line sourced from Aave’s Core Hub.
The governance machinery behind this moved at a deliberate pace. A proposal for onboarding PT-USDG-24SEP2026 was posted on May 19, 2026. Before that, a predecessor token, PT-USDG-28MAY2026, had been proposed back in March 2026 and listed on Aave V3.
