Short CPO when price opened with a down gap

Date of entry: 14 Dec 2009
I shorted CPO Feb 2010 future contract at 2497 when the price opened below recent low of 2489 (refer to chart). The stochastic of 1 hour also turned down.

The price opened at 2524 in the afternoon section and I was stoped out lossing 28 points including one point for commission. There is a potential sideway market ahead of us.
The balance of my account now is RM 31,525 after the loss of RM 700.
(The details of my account is at http://www.bullsa.com/2009/06/my-future-trading-account-records.html )