According to Investopedia.com
, "The Commitment of Traders (COT) report is a weekly publication that shows the aggregate holdings of different participants in the U.S. futures market. Published every Friday by the Commodity Futures Trading Commission (CFTC) at 3:30 E.T., the COT report is a snapshot of the commitment of the classified trading groups as of Tuesday that same week. The report provides investors with up-to-date information on futures market operations and increases the transparency of these complex exchanges. It is used by many futures traders as a market signal on which to trade."