The index based on the universe of US seaborne shipment-level import data
Release date: 3:00 p.m. (ET) Sunday October 19, 2025
US SUPPLY DISRUPTIONS INDEX (US SDI) -- September 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 September 2025, US SDI was at 0.93 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