there are more than the simple trader pivots referred to here. most traders have numbers to trade off (they look for and sometimes buy other trader's numbers); some are long above a certain number. some traders fade numbers, especially 'hard' numbers, others trade the b/o's. interest rates traders (note & bonds) also watch yields, they watch reports, reactions to auctions, cash markets, etc.. if you are a member you can see who's arbing, what 'paper' (commercials), or locals are looking at (i'm not too impressed with the piped in "pit" noise btw). some trade within zones, while others use tighter stops. ym traders watch the sp, and don't forget the cash--it's all there on the board above the floor. and if you've been around along enough, you know the big brokers and traders, those who trade 'size.' "xyz is selling 5000 bonds this am. you want to know that. that's what i know about the interest rate side of the cbot mostly. not a member but i subscribe to a service of 2 cbot members and have spent time with them. one uses charts, one doesn't (he sits in his office looking at a screen filled with order books). but i've also heard of bond traders walking into the grain room and trading beans, and they can do it because they have the "feel."