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Index lookup · WPU0652026A

US PPI — Phosphoric Acid, Superphosphates and Other Phosphate Fertilizer Materials

Producer Price Index for phosphate fertilizer intermediates, a WPU commodity index covering phosphoric acid, superphosphates, and related phosphate materials. Index base: December 2014 = 100.

Latest value
167.281
Index · as of Aug 2026
Year-over-year change
+3.6%
BLS
Month-over-month change
+0.7%

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 128.8 to 167.3, a change of +29.9%.
  • Highest reading in that period: 168.4 in Jun 2026. Lowest: 125.1 in Jul 2024.
  • Largest one-month rise: +8.3% in Apr 2026. Largest one-month fall: -9.2% in Dec 2025.
  • For a clause that resets its base every year, a 10% cap or floor would have limited the adjustment in 10 of the last 20 months.
Volatility (12mo)
±3.86%
Std. dev. of month-over-month change

Strongest average month-over-month move historically: December (-4.6% avg).

What this means for your clause

Used in phosphate fertilizer blending and distribution agreements as the intermediate-cost benchmark, sitting between the raw sulfuric acid input and the finished fertilizer product. A drafter escalating a finished DAP or MAP fertilizer sale should confirm which stage of production the contract price is actually set at before choosing this series over a finished-goods 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 — Phosphoric Acid, Superphosphates and Other Phosphate Fertilizer Materials (BLS series WPU0652026A), 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.]

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How this index is used

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