In the first week of futures trading, I bought 2 contracts of oat and shorted 2 contracts of wheat. My initial purchases are based on the latest quotes & chart for commodity futures on Nasdaq.com. Notably, oat prices have consistently dropped from its regional peak in July almost to bottom of the year. This led me to go long for oat with the expectation that the prices would rise by the time contracts expire in Dec. I may hold this position open for a longer period, as I believe the potential rebounding is strong and it needs time for oat prices to bounce back up to a relatively high level. As regard to wheat, it appears that the price trend follows seasonal cycles and is now sitting at a recent high point. Going short and repurchasing in the future at a lower price will generate a profit. My inference was confirmed by a 1.40% gain in wheat as of Oct 2nd. Overall, I was playing the strategy to trade in pairs, going short on a weak commodity and long on a strong one. By making these trades simultaneously, I could increase my odds of achieving profits. However, grains hold a special spot in the future market and I seem to have overlooked the fact of weather and inventory could dampen the effect and make the market more sensitive to anything that can affect yield.