Peak Proof 2026: What the Summer Slowdown Tells Us About the Festive Rush Ahead

Introduction Festive peak is coming. Order volumes will spike, carriers will come under strain, and delivery performance across the ecosystem will get harder to hold. Before that pressure hits, it’s worth looking at what happened the last time the market slowed, because it tells us exactly how the Performance-Based Allocation (PBA) Engine behaves when conditions turn.