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Fastmarkets stands at the forefront of price discovery in the global iron ore market, providing the transparency required for effective risk management and physical contracting. The 61% Fe iron ore index serves as a critical price for mid-grade fines, a segment of the market increasingly scrutinized for its balance of cost-efficiency and chemical composition.
As the industry pivots toward greener steelmaking and optimized blast furnace burdens, accurate price assessment becomes paramount. Fastmarkets employs a rigorous, rules-based methodology designed to reflect the true market-clearing price, ensuring that the index remains resilient against volatility while providing a fair reflection of global supply and demand.
To ensure maximum representativeness, Fastmarkets utilizes a utilizes an index methodology which fairly considers all data received during 24-hour pricing window. Unlike assessments that rely on narrow pricing windows, which can be susceptible to undue influence or wide price swings at certain times of the day, Fastmarkets collects bids, trades and offers throughout the entire trading day up until a 6:00 PM (Singapore/Beijing) cutoff. This expansive approach allows for the inclusion of the highest possible number of relevant data points in a trading day.
By extending the window to the evening, Fastmarkets captures late-session liquidity that often characterizes the seaborne market. Any verified data submitted after the 6:00 PM deadline is not discarded but is systematically rolled into the following day’s assessment.
This minimizes undue influence over the index during a short, concentrated timeframe, thereby bolstering the integrity of the daily price.
At the heart of Fastmarkets’ index methodology is a strict data hierarchy that prioritizes higher quality data points. The index is fundamentally “trade-aligned,” meaning that actual concluded transactions are given the highest weighting in the price calculation as opposed to outstanding bids or offers. Fastmarkets utilizes a tonnage-weighted averaging model to produce the final index value.
This mathematical index approach ensures that larger-volume trades carry proportional weight, resulting in pricing reflecting the actual flow of physical material in the market. By grounding the index in TWA methodology, Fastmarkets ensures that the final price is not merely a subjective opinion, but a mathematically rigorous output aligned with real deal flows.
In the absence of trades, the data hierarchy prioritizes firm bids and offers, as well as accurate market assessments, ensuring a price is always deliverable even during periods of low liquidity. This structure provides a transparent, verifiable audit trail for every index point published.
Fastmarkets prioritizes any trade concluded in an open and competitive market environment and does not include or exclude trade data based on opinions on whether that trade is repeatable.
If a transaction is confirmed and verified as a legitimate arm’s-length deal, it is included in the index calculation—even if other market participants claim they were unable to bid or offer at that specific price level at that exact moment. This philosophy acknowledges the reality of a dynamic, fast-moving global market where unique logistical advantages or urgent requirements can drive specific price points.
By focusing on the validity of the trade rather than its immediate “repeatability” across the entire board, Fastmarkets captures the full spectrum of competitive price discovery. This ensures the index reflects the actual clearing price of the market, including the “peaks and troughs” that define real-world trading.
In summary, the Fastmarkets 61% Fe iron ore index is built on a foundation of transparency, mathematical rigor, and market realism.
By combining a 24-hour data capture window with a trade-first tonnage-weighted averaging model, Fastmarkets delivers a benchmark that is representative and deeply integrated with physical market activity. The inclusion of all legitimate arms-length trades further ensures that the index remains a sensitive and accurate barometer of true market clearing levels.
As the iron ore industry faces evolving environmental regulations and shifting trade patterns in 2026, this robust methodology provides the certainty that miners, mills, and traders need to navigate global commodity complexity.
Need to stay ahead in the iron ore market? Download a sample of the Fastmarkets steelmaking short-term forecast for detailed insights.