All posts by System Trader Success Contributor

9 Mistakes Quants Make that Cause Backtests to Lie

              “I’ve never seen a bad backtest” — Dimitris Melas, head of research at MSCI. About backtests A backtest is a simulation of a trading strategy used to evaluate how effective the strategy might have been if it was traded historically. Backtestesting is used by hedge funds and other […]

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Are your backtest results fooling you?

Fool

Have you ever started trading a strategy that performs well in the backtests but delivers a very different result when you begin trading it with real money? Could your backtest reports be fooling you by indicating a strategy is great but really only showing you part of the overall picture? How do you give yourself a better chance […]

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Are you losing when you should be winning? Here’s something you might be missing

Most people think about where to get into and out of positions. Nearly all traders know how important it is to follow their rules, and the majority of them always work toward being more disciplined. These are important pieces of a successful investment strategy, and most traders work on these things. But there’s one thing […]

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How to Trade the MACD: A High-level Analysis of the MACD Line Feature

Moving Average Convergence Divergence (MACD) is one of the most popular technical indicators used by traders. It is a flexible indicator that can be used for determining the strength and direction of a trend. It has three distinct features and in this first post we are going to do a high-level analysis of one of those […]

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Backtesting A Basic ETF Rotation System in Excel – Free Download

Some Background: Let’s face it, technology has made it possible to access a wide range of tools for developing, backtesting, and optimizing systems. However, a simple (but powerful) tool like Excel is a great way to validate a trading system. In this example we’re going to be keeping things really simple and backtesting a monthly […]

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Distance Weighted Moving Averages (DWMA and IDWMA)

The distance weighted moving average is another nonlinear filter that provides the basis for further research and exploration. In its traditional form, a distance weighted moving average (DWMA) is designed to be a robust version of a moving average to reduce the impact of outliers. Here is the calculation from the Encyclopedia of Math: Notice […]

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Backtesting the MAC-System – How Long is Long Enough?

Most of us entrust our savings to financial organizations in the belief that this will provide us with better investment results than we could have achieved ourselves. These companies advocate a buy-and-hold strategy of bond- and stock funds, charge fees, and usually perform poorly. A convenient way to improve on buy-and-hold and to do better […]

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Advantages With Mechanical Strategies

A lot of the best traders (at least the ones I know) use some kind of mechanical rules in their trading. “Mechanical” implies that the rules are based on some kind of objective rules, usually quantified data. The trader should follow these rules exactly without hesitation or emotion. In this respect mechanical trading is the […]

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Probability Tools For Better Forex Trading

In order to be successful, forex traders need to know the basic mathematics of probability. After all, it’s difficult to achieve and maintain trading gains without first having the ability to understand the numbers and measure them. Many traders use a combination of black box indicators to develop and implement trading rules. Yet, the difference […]

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Trading Ideas And Systems: Keep It Simple, Smart Guy

One thing that I have discussed in numerous NAS Trading articles is the tendency for traders to believe that complex ideas and systems are inherently better or more desirable than simple, conceptual ideas or systems. Just taken at face value, this notion is completely understandable. After all, if an idea is fairly simple, how could […]

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