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Index lookup · WPU1017

US PPI — Steel Mill Products

Producer Price Index for finished steel mill products, bars, plates, sheet, strip, pipe, and structural shapes as they leave the mill, narrower than the WPU101 iron and steel aggregate and excluding raw ore and scrap. Index base: 1982 = 100.

Latest value
381.162
Index · as of Aug 2026
Year-over-year change
+25.1%
BLS
Month-over-month change
+1.7%

Latest value is 1 month old. Next update expected around Sep 2026.

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Price history

Data & insights

Key figures

  • From Jan 2024 to Aug 2026 the index went from 321.4 to 381.2, a change of +18.6%.
  • Highest reading in that period: 381.2 in Aug 2026. Lowest: 261.6 in Jan 2025.
  • Largest one-month rise: +7.5% in May 2025. Largest one-month fall: -8.1% in Mar 2024.
  • For a clause that resets its base every year, a 10% cap or floor would have limited the adjustment in 12 of the last 20 months.
Volatility (12mo)
±2.62%
Std. dev. of month-over-month change

Strongest average month-over-month move historically: May (+3.4% avg).

What this means for your clause

A common default in a steel distributor or service center supply agreement when the buyer purchases a mix of mill shapes rather than one specific product. Because it blends several product lines, a contract for a single shape is usually served better by the narrower series for that shape.

Draft a clause

A starting point citing this series by name and code. Replace the bracketed terms with your contract's actual scope before use.

The [affected portion] of the Contract Price shall be adjusted using US PPI — Steel Mill Products (BLS series WPU1017), published by BLS.

Base Period: the index value published for August 2026 (or the month of contract signing, if different) is the Base Value.

Adjustment: at each Adjustment Date, the Current Value is the most recently published three-month average of the index (the Averaging Window). The Escalation Factor equals Current Value divided by Base Value.

Cap: the Escalation Factor applied under this clause shall not exceed 1.10 or fall below 0.90 (a 10% cap and floor) in any single Adjustment Date, regardless of the index's actual movement.

[Replace bracketed terms with your contract's actual affected-portion definition and adjustment-date schedule before use. This is a drafting starting point, not legal advice.]

Want this in a spreadsheet instead? Use =ESCALAKE("wpu1017") in Google Sheets →

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How this index is used

How do you calculate a steel price escalation clause using the PPI?

A steel PPI escalation clause compares a current-period Producer Price Index value for a named steel series to the value at contract signing (the base period), turns that into a ratio, then applies the ratio to the contract price or affected line items. Clauses typically define the exact BLS series code, an averaging window, a publication lag, and a cap limiting the maximum adjustment.

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Apply this index to your contract automatically

Escalake tracks US PPI — Steel Mill Products, applies your formula, and gives both sides a number they can confirm, no spreadsheet required.