The stock I bought this week experience great changes. Last week,I made money on short on  the OAT.I assumed that 2 dollar is a price that can not be easily break.However,my mind is just so  thoughtless.Stock trading has many factors to consider.

In the term of Pork Lean,I bought 15 quantity,which is the largest market value I was able to buy.Based on the 18 months history price,$0.42 is the lowest point.So, I made my mind to buy as much as possible at this point.There is less chance to loss.Overall,I got my total earn of 7850And I will pay more attention to this stock to observe the trend of Pork lean.

In the term of Feder Cattle,the history price is volatile over time.I feel hard to make decision just based on the history price.I am considering to sell it when the opening position of tomorrow is good.

In the term of Soybean oil,I went short for 3 quantity this week based on the history price of the last two months.

In the term of cheddar cheese, there is less possibility for it to go up in  a short of time.Since I  want to make profit in a short time.I will consider sell it when my loss shorten.And I can use money to buy other stock.