And today:
1. My daughters asthma.
2. What, Exactly, IS a Trading System?
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It’s official. My 4 year old daughter has asthma.
But I believe with God’s help, and medicine she will outgrow it. In fact in our house we say, “She is fighting asthma right now and won’t have it long”.
Some say that is crazy, but I don’t care.
Sure I’m negative when I bash financial advisors and trading “gurus” who don’t know how to trade.
But overall I’m a very positive guy. Our statement about my little girl is not so much about “positive confession”, as it is about faith in God.
You might not be the same, and that is fine with me, I can’t change anyone and I know that.
But I believe with God’s help I can change her situation. I’d rather believe that then see her have asthma her whole life.
Plus my wife once got healed a week after a terrible car accident. Threw away the pain medications and everything. But I’ll share that story for another day, you’ll love it.
If you agree or disagree about my approach to this situation let me know on my blog…. Or if you have a story of your own that you want to share:
http://www.etftrendtrading.com/free-blog/
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What, Exactly, IS a Trading System?
It occurs to me that I talk a lot about having and following a trading system but maybe you don’t know what makes up a system.
So, today, we are going into the details of an effective system. Once you have a clearly defined strategy or system, you can learn to execute it, with the trading rules set in advance.
Of course, an important factor is combining of various indicators and criteria to develop a winning system so I’m going to explain the foundation of a good system – the indicators to use and optimizing them properly.
Basically, a trading system means, "Here's what I'm gonna do and how I'm going to do it."
This may seem overly simple but defining your trading system is the first step toward trading success.
First, the Indicators:
Just like execution, the process used in the formulation of a new trading system, should be standardized. This way, traders don't find themselves wanting a system or indicator to work and letting that skew their conclusions.
For this we assume you are using software such as TradeStation or MetaStock to conduct your tests.
Your first step is to decide which indicators you will use for your system. There are lots of indicators (I’ll have to do another article on most of them) so how do you know what indicators to use?
Some of the most widely used technical indicators are:
- Moving Average (MA)
An MA is an average of price over a defined period of time for a symbol or index. The line generated by this formula will signal a trending (upward or downward) or a non-trending price direction of a stock or index.
You’ll frequently see a combination of two time periods applied to a chart. Popular combinations are:
10-day and 30-day
20-day and 50-day
50-day and 200-day (better for weekly charts).
There are two common, but slightly different MA calculations:
- Simple Moving Average (SMA)
The SMA is calculated by taking the closing price of a stock or an index for a number of days, adding them up and dividing the figure by that number of days to get a SMA of price.
- Exponential Moving Average (EMA)
The EMA is basically the same calculation except more weight is given to the latest data focusing more emphasis on what an index or stock price is doing more recently.
- MACD – Moving Average Convergence Divergence
A trend-following momentum indicator that shows the relationship between two moving averages of prices.
The MACD is calculated by subtracting the 26 day exponential moving average (EMA) from the 12-day EMA. A nine-day EMA of the MACD, called the "signal line", is then plotted on top of the MACD, functioning as a trigger for buy and sell signals.
There are three common methods used to interpret the MACD:
- Crossovers – when the MACD falls below the signal line, is a bearish signal, which indicates that it may be time to sell.
Conversely, when the MACD rises above the signal line, the indicator gives a bullish signal, which suggests that the price of the asset is likely to experience upward momentum.
Many traders wait for a confirmed cross above the signal line before entering into a position to avoid getting getting "faked out" or entering into a position too early. I personally don’t like crossovers, because Divergence is a much better indicator.
- Divergence – When the security price diverges from the MACD. It signals the end of the current trend.
And not just MACD, this can also be used on RSI, Stochastics and many more indicators.
- Dramatic rise – When the shorter moving average pulls away from the longer-term moving average is a signal that the security is overbought and will soon return to normal levels.
Traders also watch for a move above or below the zero line because this signals the position of the short-term average relative to the long-term average. When the MACD is above zero, the short-term average is above the long-term average, which signals upward momentum.
The opposite is true when the MACD is below zero. The zero line often acts as an area of support and resistance for the indicator.
- Stochastics – A technical momentum indicator that compares a security's closing price to its price range over a given time period.
The oscillator's sensitivity to market movements can be reduced by adjusting the time period or by taking a moving average of the result.
This indicator is calculated with the following formula:
%K = 100[(C - L14)/(H14 - L14)]
C = the most recent closing price
L14 = the low of the 14 previous trading sessions
H14 = the highest price traded during the same 14-day period.
%D = 3-period moving average of %K
- RSI – Relative Strength Indicator – A technical momentum indicator that compares the magnitude of recent gains to recent losses in an attempt to determine overbought and oversold conditions of an asset.
It is calculated using the following formula:
RSI = 100 – 100/(1 + RS*)
*Where RS = Average of x days' up closes / Average of x days' down closes.
- Average Directional Index (ADX) – The average directional index rating is displayed in the form of the single black line that moves between a range of 0 to 100, though you will rarely see readings of exactly 0 or 100. It is a non-directional indicator, meaning that the line will rise to a higher rating even if the price trend is downward. The line simply gauges the strength of any trending price move. The default setting for the ADX indicator is usually 14 periods, but it can be adjusted if you trade in a shorter or longer time frame.
There are two other important components to the average directional movement index rating there's a green line for +DI (positive directional indicator) and a red line for –DI (negative directional indicator).
These additional lines help by indicating an upward or downward moving trend.
The average directional movement index rating system is as follows:
- Below 25 is non-trending or a range-bound market or stock price
- Above 25 is the beginning of a trend
- Above 40 is considered a strong trend
- Above 60 is a very strong trend
- Above 80 is an extremely strong trend
There are many more specialized indicators, but the ones listed above are probably the most popular ones.
I recommended testing individual indicators by themselves.
Beginners should test indicators because they don't know what works and what doesn't.
Experienced traders should test basic indicators because they need to make sure that the indicators they were using 5 years ago still work.
You cannot simply say that you think an indicator works well; you have to prove it via testing.
Once a good trader tests his indicators, he/she will know what a good indicator is. A good rule of thumb is:
Multiply the average win/loss ratio (size of winners vs. size of losers) by the average percentage of winners. If it’s one or more, this is good.
Compared to a 50/50 coin flip, an indicator or strategy with a one reading is twice as effective a tool.
Pick a couple of individual indicators and read about them. Start looking at them comparing the information they provide with how the price moved on a group of charts.
A good book to get started with technical analysis is The Visual Investor: How to Spot Market Trends (Wiley Trading) .
If you read that book (or others) don’t get “analysis paralysis” because you will learn SO MUCH and many times different indicators will be saying the opposite of each other.
That is why my system does not have many indicators, because it’s a Price driven system.
There are two other components to developing a trading system: Optimization and Defining the System Rules.
Since I’ve already gone on a long time about the indicators,
I’ll cover those in a later email.
Helping You Retire On Time,
Big A
800-743-0385