The COT Report: Smart Money Signals for Algo Trading

What Is the COT Report?

The Commitment of Traders Report is a weekly report released by the Commodity Futures Trading Commission (CFTC) that shows open interest for futures and options on futures markets where 20 or more traders hold positions at or above CFTC reporting levels. The data is as of Tuesday but released Friday afternoon.Position data comes from reporting firms, FCMs, clearing members, foreign brokers and exchanges, and is categorized by each trader's dominant business purpose as self-reported on CFTC Form 40.

Three Categories of Traders

The COT Report classifies all traders into three groups. Understanding what each group represents is key to interpreting the data:

Smart Money vs. Dumb Money

Commercials and large speculators are often considered "smart money". They have direct market knowledge or institutional resources. Nonreportable (small) traders get called "dumb money". Not because they're unintelligent, but because as a group their positioning tends to be contrarian to the eventual move.

The COT Index

Raw COT data, a number like 10,374 contracts long, is meaningless without context. Is that a lot or a little? It depends on total open interest and historical norms. The COT Index solves this by normalizing positioning relative to the past 36 months.

In Build Alpha, traders can test any COT Index value or range from the point-and-click interface. For example, a simple strategy going long QQQ when Nasdaq non-commercial COT Index is ≤ 50 (large speculators less bullish) has drastically outperformed QQQ buy and hold over the past 20 years.

Deriving Signals from COT Data

Simply using raw COT positions as a trade signal is not a great idea. The values need normalization. There are two primary approaches:

Normalized Net Position

Subtract shorts from longs, then divide by total open interest. A value of -0.20 means 20% of open interest is positioned net short. This creates an apples-to-apples comparison over time and across markets.

COT Index

Shows where the current normalized position ranks vs. the past 36 months. A reading of 100 = most bullish in 3 years; 0 = most bearish. More responsive to recent extremes than raw positioning.

Is There Free COT Data?

Yes. COT data is freely available from the CFTC at cftc.gov. However, the historical data is not formatted for easy use and needs modification to create useful futures market signals. Build Alpha has pre-processed COT data back to 2000 included in the 5,000+ built-in signal library, already normalized and ready to use.

COT Signals in Build Alpha

Build Alpha includes COT data for 15+ futures markets. Search "COT" in the signal filter to find all available signals, usable as entries, exits, or strategy filters, no coding required.

Available Markets

Custom COT Signals

The built-in signals above use each group's positioning on its own. The real information is often in the relationship between groups: how far apart hedgers and the crowd are, whether that gap is widening, and whether an extreme is starting to turn. I built a set of custom signals that combine the COT Index readings for commercials, non-commercials, and non-reportables into spread, extreme, and regime conditions. Each one is usable as an entry, exit, or filter, and every threshold (50, 70, 80, X) is a parameter you can optimize in Build Alpha.

• Hedgers − Crowd SpreadCommercialIndex - NonreportIndex > 50Hedgers are far more bullish than the small-trader crowd. A wide gap in favor of the smart money.
• Crowd − Hedgers SpreadNonreportIndex - CommercialIndex > 50The mirror image. Small traders are far more bullish than hedgers, a classic contrarian warning.
• Extreme Disagreementabs(CommercialIndex - NonreportIndex) > 70Hedgers and the crowd are at opposite extremes, in either direction. Flags the most polarized readings.
• Hedgers Bullish / Crowd BearishCommercialIndex > 80 AND NonreportIndex < 20Both groups at extremes at the same time, with the smart money long and the crowd short.
• Hedgers Bearish / Crowd BullishCommercialIndex < 20 AND NonreportIndex > 80The opposite pairing. Smart money short into a crowd that is heavily long.
• Hedgers vs Large Specs DivergenceCommercialIndex - NonCommercialIndex > XCompares hedgers to the large speculators (funds) instead of the crowd. X is a threshold you can optimize.
• Positioning AccelerationCommercialNet - CommercialNet[1] > XWeek-over-week change in commercial net positioning. Catches hedgers building a position quickly, not just holding one.
• Spread Widening(CommercialIndex - NonreportIndex) > (CommercialIndex[1] - NonreportIndex[1])The gap between hedgers and the crowd grew this week. Direction of the disagreement, not just its size.
• Extreme + ReversalCommercialIndex[1] < 10 AND CommercialIndex > CommercialIndex[1]Tests hedgers turning up from an extreme. The prior reading was near the floor and this week's reading is higher.
• Consensus / Compression Regimeabs(CommercialIndex - NonreportIndex) < 10Tests periods where hedgers and crowd are unusually aligned. Low disagreement often marks a regime with little positioning edge, or the calm before one.

COT Trading Strategy Example

Here's a pure COT strategy on S&P 500 futures, no price, volume, or technical signals used. Only COT positioning data as entry signals:

Takeaways

COT Report FAQ

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