How it works

Dorman lets you choose from a library of trading systems, and then lets you automatically trade those systems in your brokerage account. You can even trade a mixed portfolio of systems in one account.

Common Questions

Who creates the trading systems on Dorman?

Anyone in the world can add his or her trading system to the Web site and have it audited by Dorman.

If anyone can add his system, doesn't that mean some of the systems on Dorman are bad?

Oh my, yes! Many systems on this site are terrible! On the other hand, the site's very openness means that we benefit from the collective brilliance of traders, mathematicians, and programmers from around the world. Thus, a surprisingly large number of systems on the site are worth investigating. And because Dorman makes it easy to sort the systems -- and easy to ignore the bad ones -- it's a powerful tool for traders seeking an edge.

How does Dorman verify the results I see here? Does it "trust" results reported by system creators?

No, we don't trust anyone. That's because we don't need to. The results you see on this site are not reported to us by anyone. System developers do not tell us, "On January 13th, I bought IBM and I sold GM, and I made $1,000." No. Instead of reporting historical results to us, the system vendors tell us, in real time, what they want to buy and what they want to sell. They must tell us at the moment they want to execute their trades. In other words, they tell Dorman their trades before they know if their trades will prove successful. So the results you see here are the results of "walk-forward" testing -- and are not the results of optimizations and backtesting.

What do I need to do to AutoTrade a system I find on Dorman?

First use our System Finder to find a system you like. Then, subscribe to it. Lastly, choose to AutoTrade it in your brokerage account. You'll be asked your brokerage account number, and how large or small to make the trades. You can start and stop trading whenever you like.