Index lookup · WPU117409
US PPI — Power and Distribution Transformers, Except Parts
Producer Price Index commodity data for finished power and distribution transformers, explicitly excluding transformer parts, which BLS prices under a separate parts series. Index base: December 1999 = 100.
Latest value is 2 months old. Next update expected around Aug 2026.
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Price history
Data & insights
Key figures
- From Jan 2024 to Jul 2026 the index went from 343.2 to 381.8, a change of +11.2%.
- Highest reading in that period: 381.8 in Jul 2026. Lowest: 339.1 in Apr 2024.
- Largest one-month rise: +4.6% in Jul 2026. Largest one-month fall: -1.2% in Apr 2024.
- The year-over-year change stayed within 10% either way in each of the last 19 months, so a 10% annual cap or floor would not have been reached.
Strongest average month-over-month move historically: October (+2.4% avg).
What this means for your clause
The standard commodity-level benchmark for a transformer purchase contract itself. Because parts are excluded by definition, a contract that also covers replacement parts or repair components needs a second series alongside this one.
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 — Power and Distribution Transformers, Except Parts (BLS series WPU117409), published by BLS. Base Period: the index value published for July 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.]
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Apply this index to your contract automatically
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