If Natty is a buy now after the aug roll off, I've never seen a bigger tell for market manipulation. Notice no gap down (otoh, there is 'potentially' something forming in the noaa tropical storm pages).
Yeah I am trading derivatives as I don't have access (yet) to a futures account.
I just ordered 3 books about Commodities trading and futures because I am not yet familiar with them. I do not really understand some Commodities quotes. There seems to be mini-futures and futures. Some given quotes are August, others are september... Which ones are to be observed ?