Trading vs investing (for me)
It depends on what I am trading and how big my position is, I am a really new, fairly patient, small account, so if I am trading something like the cruise lines, intel, or any large reliable (as reliable as anything can be in this market) company I am buying lows expecting a run up. I dont use stop losses since I keep my initial position small enough I can just buy more as it dips and wait for it to run back up. If it doesnt dip, I dont make a ton of money, but thats fine too, I ride until I take profits and move on to something else. I understand the basic concepts that holding a red swing is a waste of money that COULD be doing something else, but I dont tend to be an aggressive trader (really just learning about the market with beer money) anyways so a chunk of my portfolio stays inactive at any given time.
If I am trading pennies or the days runners I use a stop loss UNLESS I am willing to risk everything in that position (not often I am willing to but..) and/or I am in low enough I am not worried about a minor dip. If I am trading something expensive and only looking for a scalp/swing/daytrade I will use a stop loss.
I am one of those guys who takes some of the profits from my day trading and dumps it into SPY (and will start diversifying ETFs as I go along) so I dont worry about stop losses there, I just add more if it goes lower. Thats about the extent of my investing right now, until I get the IRA's maxed this year at least.
Is it common for long term investors to use stop losses?