Arrows are simply a visual way to show a chart reader that a key statistic has generated a buy or a sell signal. Buy signals are usually green arrows pointing up and sell signals are usually red arrows pointing down. Have a look at a sample chart from INVESTools.
In this image you can see arrows being displayed from 3 different statistics: 30-day Moving Average, MACD, and Stochastics. I won’t bore you here with what these statistics mean, but if you look closely you’ll see that there are arrows whenever a key threshold or “trigger” has been reached. Here are the triggers for each of the statistics on this chart:
Moving Averages (MA): the price line crosses above or below the MA line.
MACD: the histogram reaches 0, either heading up or down.
Stochastics: the line crosses above the 25th or below the 75th percentile.
As you can see, you can pull all the information right off the chart if you wanted to, but the arrows just make it really easy to read. Most professionals who use charts like this look at tens if not hundreds of charts a day, so these little indicators can really save time. It’s also important to remember that each software package can use slightly different triggers and statistic configurations, and you should read up on how they work before you settle down with one tool.
So can you make money just by using them? Let me answer this last question quickly: NO!!!! (added ‘!’ for emphasis). If you guessed that might be the answer, you were right. For the beginning investor, I believe you should learn how to buy good companies at good prices. This is the basis of fundamental investing, and I believe provides a good foundation to get into other more aggressive styles. Basic idea: Look for companies that are growing and their prices should* eventually go up.
Arrows are used in what is known as technical analysis, which is used to help determine when to buy as stock. This is a perfectly valid study, but a lot more is involved than simply reading the arrows. You also want good price movement, or growing buzz on the street. Using arrows is valuable, but don’t be alarmed if 3 green arrows don’t propel your stock 500%. Strong buy signals get flagged all the time, even for garbage stocks. Use it as one of your factors, but not as the factor.
Unfortunately, my major criticism of Phil Town’s book is that his technical game is very weak. Using the arrows doesn’t totally remove the chance that you could lose money. If you follow the arrows, it is possible to lose a small percentage of your investment. For example, I followed Phil Town’s methods (without doing as much research as he recommends), and after following the buy signals from the arrows proceeded to lose a small chunk of my investment. (You can read all about it in my forum post about INFY).
Best practice that I know of at the moment for new investors: find good companies first, then use the arrows, then if the price falls 7%, sell it all, otherwise hold on until your sell signal comes near a top.
* It’s important to realize that you’re not always going to be 100% right on every stock you pick. That’s okay! Just sell the lemons quickly and hold on to your winners until the winds start to shift.