Does the COT Report Work? What It Shows and How Traders Use It

What the COT report shows well

The CFTC publishes the positions of traders above its reporting levels, market by market, grouped by type of trader. According to its Explanatory Notes, these reportable positions usually make up 70 to 90 percent of a market’s open interest; the rest is derived as non-reportable. From that data, six things stand out:

• Positioning by group. Commercial hedgers, large speculators and small traders, each with their longs, shorts and net position. The latest COT report lays out every market’s newest numbers, and the COT Report Simplified follows them report by report.
• How crowded a market is. The COT Index places a group’s net position within its own range over 26 weeks, 52 weeks, 3 years or 5 years: 0 is the lowest of the period, 100 the highest.
• Multi-year extremes. COT extremes lists the markets where the speculators’ 3-year rank sits at an edge of its range, with the largest rank moves and the markets where they switched side.
• Every market at a glance. The Positioning Heatmap lines up the speculators’ positioning in every analysed market in one grid, and the COT positioning analysis pages describe each market in plain words.
• Change over time. The COT Data Charts draw each group’s net position against price and open interest, for every market and its whole history.
• Open interest and the report families. Open interest shows how much is held in total. Beyond the Legacy report, the Disaggregated report splits commodity markets into Producer/Merchant/Processor/User, Swap Dealers, Managed Money and Other Reportables, and the TFF report splits financial futures into Dealer/Intermediary, Asset Manager/Institutional, Leveraged Funds and Other Reportables (both with COT Premium).

How traders use the COT report

Traders read the report as context: a description of the market’s structure that sits next to the price chart. Four common ways to use it:

• Alongside price. The price chart shows what the market did; the COT report shows who was positioned and how. Read together, they give a fuller picture than either one alone.
• Risk awareness at extremes. When a group’s net position sits near the edge of its 3- or 5-year range (a COT Index near 0 or 100), the positioning is crowded by its own standards. That shows how one-sided the market is, which helps when weighing risk.
• Comparing groups. Hedgers, speculators and small traders often sit on opposite sides of the same market. Seeing who holds what shows where the open interest comes from.
• Watching change. One report on its own says little; the change from report to report, and over months, shows how the picture is moving and whether a build-up is growing or fading.

Reading COT data next to price

Because the report describes positioning, it works best as part of the picture. On 29 October 2026 we checked this with our own test: 11 simple rules that turn COT positioning into an up-or-down call, plus a price-trend rule as a reference, on 25 futures markets with COT data from 2006. The rules were chosen on 2007–2018 and checked, unchanged, on 2019–2026. No single mechanical rule turned the positioning into reliable calls on its own.

Published research points the same way. Sanders, Irwin and Merrin (2009) studied the large traders’ positions in 10 agricultural futures markets and found very little evidence that those positions forecast returns; the non-commercial traders tended to follow trends. The CFTC presents the report as market data and makes no claim about forecasting prices.

That is exactly why traders read the full picture (groups, history, extremes, change and price together) instead of a single number. Our test covered simple rules only, on these markets and periods; past results do not predict future results.

Where to start on COT-Reports.com

Everything above starts free. Every CFTC market is on every report page; the COT Data Charts carry the whole history; the COT Index opens the 26- and 52-week ranges to everyone and the 3- and 5-year ranges with a free account; COT extremes and the Positioning Heatmap are open to all.

COT Premium adds depth: the Disaggregated, TFF and Supplemental reports, the Futures & Options Combined version, a custom date range across the history and CSV export.

This article describes the CFTC data and our own test; it is not investment advice.