Supplemental COT Report — Detailed
Index Traders · 13 agricultural markets · Updated every Friday
The CFTC Supplemental Commodity Index Traders (CIT) format with every trader bucket exposed — Index Traders, Non-Commercials, Commercials and Non-Reportables — laid out side by side. Track index-fund exposure across 13 ag markets including corn, wheat, soybeans, cotton, sugar and live cattle.
The latest CFTC Commitments of Traders (COT) report (Supplemental) was released on Friday, 16 October 2026, reflecting futures positions as of the close of trading on Tuesday, 13 October 2026.
CORNZC-CBOT
Premium Report
This report format is available exclusively for COT Premium subscribers.
- 9 premium report formats
- Heatmap
- Advanced Charts
- CSV export
- Price column
- 20+ years of data (since 2006, Legacy since 1986)
- Futures Only & Futures & Options Combined on every report and chart
Price column unlocked on every COT report table
Currently showing: CORN - CHICAGO BOARD OF TRADE | 26 reports | 21 Apr 2026 to 13 Oct 2026 · Variant: Futures & Options Combined
About the Detailed Supplemental COT Report
The Detailed Supplemental COT Report shows all 4 CFTC categories — Non-Commercial, Commercial, Index Traders, Non-Reportables — side-by-side for 13 agricultural futures markets. Released every Friday at 3:30 PM ET, the Detailed view exposes how Index Trader (CIT) flows interact with Commercial hedgers and Non-Commercial speculators on the same row, week after week.
- Source: U.S. Commodity Futures Trading Commission (CFTC)
- Release schedule: Every Friday, 3:30 PM ET (delayed on US federal holidays)
- Markets covered: 13 agricultural commodity futures (corn, wheat, soybeans, sugar, coffee, cocoa, cotton, etc.)
- Trader categories: Non-Commercial, Commercial, Index Traders, Non-Reportable
Frequently Asked Questions
What does the Detailed Supplemental COT Report show?
The Detailed view stacks all 4 Supplemental categories — including the unique Index Traders bucket — in one table. For each you see Longs, Shorts and Net Position, next to the report date and the market's close price. This is the only CFTC format that isolates passive index-fund positioning, and Detailed lets you compare it directly against active hedgers and speculators.
How is the Detailed Supplemental view different from the Simplified one?
Simplified focuses on a single category (typically Index Traders — the headline Supplemental bucket) with richer per-row metrics. Detailed shows every category on the same row so you can spot when CIT flows decouple from Commercial hedgers — a key tell for fundamental supply shocks.
Why does the Detailed Supplemental table have fewer columns than Disaggregated?
Supplemental tracks 4 categories (vs Disaggregated's 5), so the column count is proportionally smaller — about 24 instead of 29. The structure is identical: Long/Short/Change/Net per category, plus Date, Open Interest, Close Price.
What are Index Traders in this view?
Index Traders are entities replicating commodity index baskets (S&P GSCI, Bloomberg Commodity Index). They typically buy long-only across multiple agricultural contracts. The Detailed view shows how their flows shift relative to Commercial producers — useful for spotting passive-vs-active divergence.
Can I export the Detailed Supplemental table to CSV?
Yes — Premium subscribers can export every visible column directly from the toolbar. The CSV preserves Long, Short, and Net per category plus Open Interest, with Date as the first column for direct loading into Excel, Google Sheets, or Python.
How are weekly reports aggregated when I group them?
When you switch the Group Reports filter from Individual to Bi-Weekly, Monthly, Quarterly, Half-Year or Yearly, the underlying weekly CFTC reports are combined as follows. Snapshot columns (Long, Short, Spreading, Open Interest) are averaged across the period — a monthly row shows the average position across the 4-5 weeks that fall inside that month. Flow columns (Change Long, Change Short, Change OI) are summed, because they represent weekly deltas and the period total is the cumulative flow. NET % CHANGE uses an endpoint formula: it compares the net position in the last week of the period to the net position in the first week, expressed as a percentage. The small ×N chip on the DATE cell shows exactly how many weekly reports were aggregated into that row.
Explore All Report Formats
Unlock Every COT Report Format.
Every COT Report with Advanced Analytics
Go beyond the free Legacy reports: the Disaggregated, TFF and Supplemental formats, custom date ranges back to 1986, the Positioning Heatmap, Advanced Charts and CSV export.
REPORTS & HISTORY
- ✓Disaggregated — Managed Money & Swap Dealers
- ✓Traders in Financial Futures (TFF) — Leveraged Funds & Asset Managers
- ✓Supplemental — Commodity Index Traders
- ✓Simplified, Detailed & Latest views of all three
- ✓Custom date ranges, back to 1986
- ✓Both CFTC variants of every report, one click apart
DATA & TOOLS
- ✓Close Price column & CSV export
- ✓Every trader group's figures on the Positioning Heatmap
- ✓Advanced Charts & COT Volume Profile
- ✓Custom Weekly Summary & My Markets
- ✓Table screenshots (PNG) with no daily limit
- ✓The complete How to Read the Simplified COT Report guide (3-month and annual plans)
The 3-month and 1-year plans include the How to Read the Simplified COT Report guide free.
Any Prop Firm.Automated Trading Journal
Auto-sync trades from MetaTrader, NinjaTrader, cTrader, Tradovate and more. Built-in analytics, prop-firm tracking, risk management and multi-account support. Basic and Premium include free EAs, a free cBot and a free NT Add-On.
COT-Reports Marketplace
Traders build it. Traders use it.
Probably the best trading tools, made by traders for the COT-Reports community. Buy what you need, or list what you built.
COT-Reports.comEvery Friday, 35 markets land in Telegram. FREE.
The COT Report Simplified for each market in the map, plus the Weekly Summary, minutes after the CFTC publishes. Between Fridays, the bot sends any of them on request and keeps a free trading journal.