GlobalSupplyShock

Plain-English supply & recession signals

What's happening to the world's supply of energy and goods — and what it means for prices, jobs, and your wallet.

Right now

The monthly-average Brent oil price is close to its 5-year average.

Shipping through the Strait of Hormuz this week is running 93% below its pre-strikes (early 2026) pace.

Auto-generated from the data below — descriptions, not forecasts.

Global Supply Shock Index

how it's calculated

100/100

Severe+8 pts vs previous month
NormalElevatedHighSevere

Score for 2026-08 — literally: "more supply stress than 100% of all months since 2015".

Month by month since 2015

Full history back to 2015, the exact formula, and the backtest against known crises are on the methodology page.

Financial warning lights

all 6 lights & the slow burns

0 of 6 warning lights are red right now, with 1 on watch. Most months look like this.

Common questions

What is the Global Supply Shock Index (GSSI)?

The GSSI is a 0–100 score combining four pillars — energy prices, shipping traffic, Asian manufacturing activity, and trade data — into a single reading of how stressed the world's supply chains are right now, compared with every month since 2015. Scores are grouped into bands: Normal, Elevated, High, and Severe.

What causes a global supply shock?

A global supply shock happens when a disruption — a war, a blocked shipping route, a factory shutdown, or an energy price spike — reduces the flow of goods or raw materials the world economy depends on. This site tracks it through real-time signals like oil prices, ship traffic through key chokepoints, and Asian factory output.

How is a supply shock different from a recession warning sign?

A supply shock describes disruption to the physical flow of energy and goods happening right now. A recession warning sign — like the Sahm rule or an inverted yield curve — is a signal about future economic activity, built from separate data like unemployment and interest rates. This site tracks both, because supply shocks often feed into the conditions that later trigger recession signals.

Is this site's data real-time?

No series on this site is claimed to be real-time. Each chart is labeled with its actual cadence — daily, weekly, or monthly — and its source's typical publication lag, so you always know exactly how current a number is.