Platts publishes migration calendar for iron ore derivative assessments and related forward curves

Platts, part of S&P Global Commodity Insights, is publishing the calendar for migrating its medium-grade iron ore fines and iron ore lump derivative assessments and related forward curves to reflect updated specifications due to take effect in the seaborne spot market in 2026.

Derivative assessments and related forward curves reflecting IODEX medium-grade fines and Iron Ore Lump Premium derivatives will be migrated on a rolling calendar, effective Sept. 1 onwards, in line with when the underlying assessment time period reflects updated specifications in their respective bases of settlement.

The migration relates to Platts July 1 subscriber notes communicating that it will update the baseline quality specifications of its IODEX iron ore fines and lump premium assessments effective Jan. 2, 2026:

https://www.spglobal.com/commodity-insights/en/pricing-benchmarks/our-methodology/subscriber-notes/070125-platts-to-update-iodex-quality-specifications-to-reflect-61-fe-effective-jan-2-2026

https://www.spglobal.com/commodity-insights/en/pricing-benchmarks/our-methodology/subscriber-notes/070125-platts-to-update-seaborne-iron-ore-lump-quality-specifications-effective-jan-2-2026

For example, on Sept. 1, Platts iron ore fines derivative assessments for the second quarter forward (January-March 2026), third quarter forward (April-June 2026) and Calendar 2026 will reflect updated underlying specifications outlined in the subscriber note above.

On Oct. 1, Platts assessments for the third month forward (January 2026) and first quarter forward (January-March 2026) will reflect updated specifications.

The timelines for the migration in baseline quality specifications are as follows:

Iron ore fines derivative forward curve

Iron ore lump derivative forward curve

Platts will also update the assessment descriptions of its iron ore fines derivative symbols, replacing "TSI Iron Ore 62% Fe Derivative" with "IODEX Derivative" and the relevant time period on a one-time basis on Jan. 2, 2026. The affected symbols apply to those listed in the table "Iron ore fines derivative forward curve" above.

The derivatives assessments are published on the fixed page 1113 of the real-time Platts Steel Alert and Platts Metals Alert, in SBB Steel Markets Daily, in Platts Market Center and in the Platts price database.

Please send feedback, comments and questions to iodex@spglobal.com and pricegroup@spglobal.com .

For written comments, please provide a clear indication if comments are not intended for publication by Platts for public viewing.

Platts will consider all comments received and will make comments not marked as confidential available upon request.