I see that yahoo finance charts have futures. I have seen the Corn futures, so how does one get continuous contracts charts for corn futures, i can seam to find the symbol ? Or maybe there isnt one ?
I don't think they have continuous futures contract symbols. Even the non-continuous futures data on yahoo is lacking - it only goes back a few days. You're better off using a professional data feed that you get from a broker. Another option is to get free quotes from here: http://tfc-charts.w2d.com/menu.html. They have continuous weekly and monthly charts.