The index based on the universe of US seaborne shipment-level import data
Release date: 1:00 p.m. (ET) Friday January 30, 2026
US SUPPLY DISRUPTIONS INDEX (US SDI) -- December 2025
Our monthly supply disruption index (US SDI) combines 200 million shipment-level import records for the US, measuring temporary disruptions in consumer-supplier pairs.
In December 2025, US SDI was at 1.53 percentage points (pp) of consumer-supply pairs temporarily disrupted above the pre-2020 average.
Supply disruptions continue to persist with varying degrees across US regions, product categories, and countries of origin.
Indices