Length of trades

I was searching on Yahoo for mt4stats for the hell of it and found MT4 Stats - Share your MetaTrader 4 Stats with the world in my search. I notice some of the open trades have been open for quite some time, but I am curious if it is advisable to hold trades for 2+ months. There were no losing trades for nearly 3 months which is pretty amazing to me and 243% gain in 3 1/2 months would be fantastic.

If you have deep enough pockets…