Freight TSI: Latest Reading, Historical Chart & Investor Guide

Indicator Snapshot

What Freight TSI Measures

Freight Transportation Services Index measures the volume of freight carried by the U.S. for-hire transportation sector. The indicator is published by U.S. Bureau of Transportation Statistics on a monthly basis and is one of the primary datasets used by investors and economists to monitor this area of the economy.

An index from the Bureau of Transportation Statistics measuring monthly changes in the volume of freight services performed by for-hire carriers, including trucking, rail, inland waterways, pipelines and air freight. It is seasonally adjusted with 2000 equal to 100.

Why Investors Watch Freight TSI

Freight moves ahead of or alongside production and consumption of physical goods, so this index serves as a coincident to slightly leading read on the goods economy. It helps analysts cross check industrial production, retail goods demand and turning points in the logistics sector.

The indicator's impact on financial markets depends on multiple factors: whether the reading was expected, the current economic regime, central bank policy stance, and investor positioning. A single data point is rarely sufficient to draw firm conclusions.

How Freight TSI Is Calculated

BTS collects activity data from each mode, such as ton miles, carloads and intermodal units, then combines them into one index with weights that reflect each mode's share of freight transportation output. The index tracks the quantity of services supplied by commercial carriers rather than revenue or prices.

The official methodology documentation from U.S. Bureau of Transportation Statistics describes the full calculation process including sample design, weighting and revision procedures.

Reference: U.S. Bureau of Transportation Statistics: Freight TSI data and methodology

Release Schedule and Revisions

Freight TSI is typically released monthly by U.S. Bureau of Transportation Statistics. Release dates are announced in advance through the official release calendar. Investors should monitor both the scheduled release dates and any unscheduled revisions.

Economic data is frequently revised as additional information becomes available. Initial releases may be revised materially in subsequent publications. Tracking revision patterns alongside absolute levels can provide additional insight into data quality and economic momentum.

How to Interpret Freight TSI Changes

When analyzing Freight TSI data, investors should consider multiple dimensions simultaneously:

• A rising index indicates more freight volume moved by for-hire carriers, which generally accompanies stronger goods demand; falling readings suggest weaker shipping activity.
• Compare with industrial production and retail sales: freight is a physical activity measure, and divergences can show inventory building or a shift away from goods.
• Watch the year-over-year change and multi-month trend, since the index has no neutral level and its 2000 base is arbitrary.

Market Impact of Freight TSI

Freight TSI can influence multiple asset classes depending on its implications for economic growth, inflation, and monetary policy:

• Equities: Changes in Freight TSI can affect earnings expectations, discount rates and sector rotation preferences.
• Fixed income: The indicator may influence Treasury yields and credit spreads depending on its monetary policy implications.
• Currency markets: Divergence in Freight TSI across economies can affect relative currency valuations.
• Commodities: Economic activity indicators can affect commodity demand expectations and prices.

Historical Context

Freight Transportation Services Index has a long history that provides context for interpreting current readings. Key reference points include major economic cycles, recessions, recovery periods and policy regime changes. Historical comparison helps investors avoid placing excessive weight on any single data point outside its longer-run context.

Investors should be aware that methodology changes over time can affect comparability across long historical periods. The official U.S. Bureau of Transportation Statistics documentation will note any significant definitional or methodological changes.

Limitations of Freight TSI

Like all economic indicators, Freight TSI has limitations that investors should understand before drawing conclusions:

• It measures volume, not prices or revenue, so rate changes and fuel surcharges do not appear, and a mix shift among modes can move the total.
• Releases arrive roughly a month or more after the reference month and are revised as modal data update, so it is a coincident read with a lag, not a timely one.
• No single indicator captures the full complexity of economic conditions, so read this series next to the ones linked below.

Related Economic Indicators

Freight TSI is best interpreted alongside related indicators that provide complementary perspectives on the volume of freight carried by the U.S. for-hire transportation sector. Confirming or diverging signals across related indicators help investors form more robust views of the economic environment.

• Truck Tonnage Index
• Cass Freight Shipments
• Rail Traffic
• Industrial Production

See the Energy Supply Chain And Logistics indicators section and the Macro & Market Regimes hub for broader context and related data.