The Value of Back Testing in Trading

Hardly any trader will argue over the advisability of using trading systems. Not all trading experts however will suggest back testing. They may have just forgotten to mention it or they might not think it overly important to mention as a sole topic. Neophytes should realize though that along with systems, testing is a very vital trading component.

For new traders, the phrase may seem a bit foreign. There is nothing difficult to understand about the term though. The simplest way to look at it is that testing involves running an existing system through historical information. The end result is an assessment of whether a system will work well or not in previous trading conditions.

It should be obvious how and why back tests are a must before adopting trading systems. Through testing, traders can tell if an existing plan has a good chance of functioning well in a market. Simply put, there is some warning in advance if a system can produce profits or not. This is a conclusion that you can arrive at even if a tester only works with historical information. The logic behind the procedure is that historical data might possibly repeat itself at a future date. Even if an exact repeat is impossible, similar situations can still occur.

Good testing facilities don’t just secure one time profits. With a truly systematic test, traders get the benefit of evaluating the future effectiveness of their systems. In addition, tests give insights on what can make a system more accurate or complete. The simple factor of resource allocation for example can be determined through correct and detailed testing.

It should be obvious now why back testing is vital. Be mindful though that there is more to it than visible benefits. The most crucial benefit of all is not even tangible. It is only through proper testing that a trader can become confident in a plan. A plan that passes testing becomes easier to believe in. Furthermore, confidence is necessary because it prevents traders from leaping from one system to another in the hopes of catching the magic formula. This is not just unsystematic. It is also foolish.

In short, a systematic and comprehensive test has a lasting impact on trading psychology. Once you’ve finished pushing your plan through a series of back tests, you will cease to be afraid of your decisions. Because you know that your plan works, you never have to hold on too long or let go too early of your trade positions.

You can test your chosen system using the software included in your charting package. In some cases though, these testers just aren’t good enough. A typically ineffective tool takes a system through securities individually. This doesn’t just render slow results. It also leads to inaccurate conclusions simply because securities aren’t treated as part of a portfolio. An ideal procedure should be able to take into account the interrelatedness of a portfolio of securities.

There is no chance that you can go astray with back testing especially if you opt to download the Metastock software package. You’ll definitely see more profits with a testing tool but only if it is a good one. Take the time to choose the right tool.