The Value Of Stops

 | Mar 22, 2013 07:24AM ET

As most of you know, I tend to have a large number of small short positions -- as of this morning, 70, but as of now, 69 -- and it's the elimination of one of those by way of a stop-loss order I want to mention herein.

Things were sailing along smoothly, this morning, when I saw a very large loss on one of my positions. It appeared from out of the clear blue sky and my first thought was that I must have been short some stock, which was being taken over, and they had only commenced trading very late in the day. The stock was BMC Software (BMC ).

I'm not sure why it jumped, but the stock had, in fact, been trading normally all morning until -- blammo -- it exploded higher. I was relieved (to say the least) when the huge loss on my spreadsheet was a phantom, since my actual trading screen (where RealTick resides) shows I had been stopped out of the position at a not-at-all-bad price.