U.S. Import and Export Price Indexes
The transmission sheet for FX and commodities: the dollar's swing and oil's moves become business costs here first — then climb into CPI.
Monthly (8:30 AM ET, mid-month)
What it is
The import and export price indexes, published monthly by the BLS, track price changes of US-imported and exported goods and services. The market reads the headline import-price m/m, whose monthly swings are driven by two factors: the petroleum component (imported energy) and the dollar's exchange rate (a stronger dollar suppresses import prices). It is the direct gauge of imported inflation — complementary to PPI (domestic factory prices), together forming the dual view of business costs. The export component reflects US competitiveness and global demand.
Release schedule
| Item | Details |
|---|---|
| • | Frequency: monthly (covering the prior month) |
| • | Release: mid-month at 08:30 ET (21:30/22:30 Beijing time, DST-dependent), often adjacent to CPI |
| • | Contents: headline import m/m and y/y + petroleum component + nonfuel component + export price index |
| • | Frame: import prices exclude tariffs (a post-landing cost) but include transport to the US border |
| • | Relation: complements PPI (PPI = domestic factory gate; import prices = the foreign cost side) |
Why it matters
Import prices matter as the starting point of transmission: FX swings and global commodity prices must first become import costs before climbing into PPI/CPI — it is checkpoint one of imported inflation. Three uses: decomposing CPI drivers (imported energy versus domestic inflation), validating FX pass-through (the suppression a 10% dollar rally applies to import prices), and observing terms of trade (export/import price ratio). Its standalone attention is below CPI/PPI's, but it is irreplaceable in inflation-source analysis.
Impact across assets
Typical impacts (using a hot nonfuel component):
| Asset | Typical impact |
|---|---|
| US equities | Hot nonfuel → imported-inflation evidence → marginally higher rate expectations → mild pressure; elasticity well below CPI/PPI |
| US Dollar Index | Rising imports prices usually accompany/confirm a weaker dollar (weak dollar lifts import prices) — mind the direction of causality |
| Gold | Rising imported inflation → a mild hedge bid; but the driver is often the weak dollar itself — order the causes before crediting gold's move |
| Crypto | Tracks rate expectations: imported inflation → slightly tighter expectations → mild pressure — single-day elasticity is limited |
| Treasuries | Hot nonfuel → marginally higher inflation compensation; overall among the smallest yield impacts of inflation week |
How to read it
The standard read:
| Dimension | How to read it |
|---|---|
| Petroleum component | The largest source of monthly swings — decompose oil before reading nonfuel, or the print is a gasoline echo |
| Nonfuel import prices | "Core imported inflation": FX pass-through and global manufactured-goods prices — trend beats the monthly print |
| Versus the dollar index | A stronger dollar suppresses import prices with a 1–2 quarter lag — divergence points to global commodity price momentum itself |
| Export/import price ratio | Terms of trade: export prices rising relative to import prices = terms-of-trade improvement |
The advanced frame: place import prices in an inflation-source decomposition — when CPI surprises, triangulate the driver with import prices (external), PPI (domestic costs) and wages (endogenous labor). Falling import prices with a strong dollar is the standard evidence of imported-inflation relief; but if wages and core PCE stay hot, the Fed will not pivot on external relief alone.
Limitations & common mistakes
- Reading only the headline: the petroleum component dominates — undecomposed import m/m is a gasoline echo.
- Confusing correlation with causality: import prices and the dollar are strongly inversely related, but pass-through runs 1–2 quarters behind — single-month divergence is often commodity momentum itself.
- Missing the no-tariff frame: tariffs enter business costs (feeding PPI/CPI) but not this index — "tariff inflation" needs other lenses.
- Overweighting its day-move weight: among the smallest elasticity prints of inflation week — outside extremes it adjusts positioning, it does not own the day.
- Confusing it with PPI: PPI is domestic factory prices (excluding imports); import prices are the foreign cost side — complementary views, not substitutes.
Related macro data
How it links to other macro data:
- With CPI: import prices are CPI's external input — energy CPI swings find their first cause in imported petroleum prices. cpi
- With PPI: domestic costs (PPI) plus foreign costs (import prices) complete the business-cost picture — divergence points at different inflation sources. ppi
- With the dollar index: the FX pass-through validator — the dollar's trend leads import prices by 1–2 quarters. usd-index
Symbols most sensitive to Import Price Index
Symbol pages that list this data as a factor to watch:
FAQ
Q Why does the import price index matter?
It is checkpoint one of imported inflation: FX and global commodities become import costs first, then may pass into PPI/CPI. It helps decompose "where inflation comes from" — external input or endogenous (wages/demand).
Q When is it released?
Mid-month at 08:30 ET (21:30/22:30 Beijing depending on DST), usually in CPI week.
Q Why does it always move opposite the dollar?
Mechanics: a stronger dollar makes the same foreign-currency goods cheaper in dollar terms — import prices get suppressed. But pass-through runs 1–2 quarters behind, and global commodity momentum can temporarily override the FX effect.
Q Do tariffs show up in this index?
No — the frame covers prices up to the US border (including transport) but excludes tariffs. Tariffs are a post-landing business cost showing up through the PPI/CPI chain, so "tariff inflation" cannot be verified with this index directly.
Q How do I use it in trading?
Mainly for inflation-source analysis rather than day-trading: decompose CPI drivers (imported energy vs endogenous), validate FX pass-through, and calibrate inflation-week positioning for PPI/CPI. Day elasticity is small outside extremes.
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