FIR FreightVector™
Connecting demand, capacity, prices, fuel, inventories, industrial activity and modal performance into one explainable freight-market state.
Current FIR freight-market reading
Revised private demand and rail volume remain constructive; August manufacturing shipments were nearly flat, September truck tonnage rebounded after revised August weakness, and seller-price pressure remained elevated. The latest diesel increase reinforces the cost signal. FIR retains expansion with cost pressure and modal divergence.
The broader economy and rail traffic are growing, while truck tonnage is choppy and truck seller prices are rising faster than all-services prices.
Multiple independent signals support the state, but the components describe different observation periods and should not be blended into false precision.
Q2 real final sales to private domestic purchasers, annualized; third estimate.
August shipments $658.6B; inventories +0.5% to $972.4B.
Combined carloads and intermodal through 41 weeks, ending October 17.
September year over year; October 19 diesel $6.276/gal.
Underlying demand is positive, but freight is uneven
BEA’s Q2 third estimate raised annualized real GDP growth to 2.2% from 1.5%, and private domestic final sales growth to 4.6% from 4.2%. August manufactured-goods shipments were nearly unchanged at $658.6 billion, while inventories rose 0.5% to $972.4 billion and the inventory-to-shipments ratio increased to 1.48 from 1.47. Broad demand strength does not establish uniform freight acceleration.
Rail and truck are telling different stories
Combined U.S. rail traffic rose 3.7% year to date through 41 weeks, including intermodal growth of 4.6%. ATA advance September tonnage rose 0.8% monthly, was flat year over year and up 0.9% year to date. August was revised to a 0.2% monthly decline and 1.3% annual decline from previously reported 0.5% and 1.6% declines. Commodity mix, contract exposure and mode coverage differ, so FIR keeps these dated signals separate.
Cost pressure is the clearest common risk
September truck transportation PPI rose 19.3% year over year versus 6.3% for all services. October 19 retail diesel was $6.276 per gallon including taxes, up $0.097 from October 12. West Coast and California diesel also rose, by $0.154 and $0.151 per gallon respectively. The weekly fuel increase reinforces cost pressure; neither input prices nor broad PPI are executable lane rates.
What would change the reading
- Broader expansion: improving manufacturing shipments and truck demand alongside sustained rail growth.
- Stagflationary freight pressure: continued cost increases while volume and industrial indicators weaken.
- Normalization: easing diesel and transportation prices with stable private demand and balanced capacity.
Component dashboard
| Dimension | Current direction | FIR interpretation |
|---|---|---|
| Domestic demand | Positive | Private domestic purchasing remained constructive in Q2. |
| Goods pipeline | Soft/steady | August shipments were nearly flat while inventories rose. |
| Rail demand | Positive | Carload and intermodal growth remained broad year to date. |
| Truck demand | Choppy | September rebounded but was flat year over year; third-quarter tonnage remained negative. |
| Transportation costs | Elevated; fuel rising | Seller-price growth remains high; diesel rose in the latest weekly observation. |
Sources and method
- BEA Q2 2026 GDP third estimate — released September 30; U.S. real, seasonally adjusted annual rates. GDP revised +0.7 percentage points and private final sales +0.4 points from the second estimate.
- Census August 2026 manufacturers’ shipments and inventories — released October 2; U.S. manufacturing, seasonally adjusted nominal dollars, preliminary and subject to revision.
- AAR traffic through October 17, 2026 — released October 21; U.S. carloads and intermodal units through 41 weeks, not seasonally adjusted; no revision flagged.
- ATA advance September tonnage — released October 20; seasonally adjusted, 2015=100, preliminary. August monthly/annual declines revised to 0.2%/1.3%.
- BTS/BLS September transportation PPI — released October 15; U.S. seller-price annual changes, not seasonally adjusted; series subject to revision.
- EIA October 19 on-highway diesel — released October 20; U.S. dollars/gallon including taxes; no revision flagged.
FIR method: Each component keeps its own date, unit and economic meaning. FIR assigns a descriptive market state from confirmation and disagreement across dimensions; it does not average unrelated outside indexes into a black-box number.
Limits: This initial release is a national state assessment. Lane, mode, commodity and customer conditions may differ. Updated October 23, 2026.
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