Quote from nazzdack:
FADER.................From a floor trading perspective, there are four categories of traders. "CTI1" are locals. "CTI2" are commercials. "CTI3" are brokers. "CTI4" is speculators. Generally, locals transact between 70%-80% of daily volume. Commercials do 10%-15%. Brokers do no more than 5%. Speculators do 10-15%. The CBOT provides this data throughout the day as trades are processed. The other valuable piece of data the CBOT provides is the "net position" of each category during the day. For example, at 9:00 AM, locals might be net long 2,000 contracts, commercials might be net long 1,500 and the speculators might be net short 3,500. This would usually be a good time to be "long the market" because the commercials are perceived as being "smart money" and the speculators are usually wrong. Waiting for imbalances to develop between the CTI2's & CTI4's is worth it. The "80/20" concept you mentioned doesn't really apply. If you can apply that data with the Market Profile, it can help you to "lean" in the right direction more often than not. It's more important to follow the commercials than to be concerned with an arbitrary lot-size of trading volume........unless of course it's a 10,000-lot done in a single trade.