Originally posted by shortseller
cut losses short and let profits run ... thats all there really is to it... i read a book that filpped a coin on to enter the market long or short at random and made money as long as they cut loss quick and let profits run... its mentally hard to do tho. thats where experience comes in.
BS. I know it sounds cool for someone who has no idea about what is going on in the markets and wants to get into trading fast and make a fortune: "hey, all I gotta do is take a random position and then just manage it but cutting losers and letting winners ride"... BS Unless you have a valid reason to belive that the position you are taking is more likely to go the way you think it will (in the direction you expect AND by the MAGNITUDE you expect. Otherwise, you'll lose your shirt on commisions and on the multitude of losers you'll keep cutting short.
It's a very simple simulation - program a random walk and see what would happen.
On the other hand, if you did have a trading rule accoring to which if you turned out to be right, the stock would keep going in your direction (i.e. it's not random), then it's a different matter.
If it were as easy as your book claimed, all the people on this board would have been very wealthy by now.... All there would be to it would be to program the computer and go play golf.
Keep dreaming. Unless you do a lot of work to find a rule that works, you'll have to simply be VERY LUCKY to survive. No free lunch.
In all other cases, if competition improves, more arb opportunities are likely to disappear.