Alright, here's a guide on how to use moving averages.
1) Should I use the 50 day or 200 day?
This really depends on you. I know traders that refuse to buy any stock that is trading below its 200 day moving average. Other traders love to play with the 50 day moving average. Trading around the 200 day moving average will lead to less trading and fewer whipsaws. But the 200 day doesn't capture the big moves that can happen when stocks break through the 50 day (as we saw the first half of the year). If you have the time, play around with the 50 day and set steps below it. If you have less time, you may want to use the 200 day.
The #1 rule: PUT IN YOUR STOP LOSSES! ONLY ACCEPT A 1-3% LOSS! You can always buy the stock again! Don't be the investor that wakes up one day trying to figure out why their portfolio is down 50%. Better to take a 1-3% loss than let a stock decline by 20% before bailing. Take lots of small losses and let your winners run.
2) Using moving averages to avoid stocks that are about to fall and profit from declines.
Example: UNG.
I wish I had a dime for everytime someone told me UNG (natural gas) looks cheap. Our resident Fallout fanboy, kathode, is familiar with the pain of owning this thing.
However, if one used simple moving averages, they could have avoided 99% of the pain - and profited from the decline since mid 2008.
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1) UNG broke its 50 day moving average. This was the sign to sell or at least avoid adding to your position.
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2) UNG breaks its 200 day moving average. This is big warning sign. Here we're really looking to go short or at least monitor the situation for a retest of the 50 day.
3) UNG continues to fall and makes several failed attempts at its 50 day moving average. Every failure is an opportunity for you to go short. If you didn't catch the turning points at 1) and 2), no biggie. This is the meat of the trend and is where most of the money is made. You're short all the way down until 4).
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4) UNG breaks out of its downtrend and you cover your short. You may use this opportunity to buy. If you bought at 4), you're stopped out once UNG crosses back through its 50 day moving average. No biggie - you lose 2-3% at most on this trade. That's fine when you've just captured over 60% from UNGs fall.
You may go long again once it pops above its 50 day and get stopped out for another 2-3% loss. No big deal. This is called being whipsawed and is part of the deal. Expect around 50% of all your trades to result in 1-3% losses from these false signals. The other 50% of your trades are going to capture the huge moves. Great traders embrace their losses and cut them quickly. It's just part of the business. At 5) UNG failed at its 50 day yet again and this could be a short opportunity but given the recent successful attempts to break its 50 day you may want to sit on the sidelines. Today it looks like UNG is popping off its bottom and is looking to move to its 50 day once again. If it fails, short. If it succeeds, go long. Let the market tell you what to do.
Example: SP500.
While the rest of the world was screaming and recoiling in horror, the trend trader actually went short the market early 2008.
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1) the market already showed weakness. The 50 day crosses down through the 200 day. The SP500 couldn't break through. That's right: before Lehman, before the bailouts, before the panic, the market already was telling you to bail out.
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2) we have another failed attempt of the 200 day moving average. You can use the opportunity to short or just avoid new investments altogether. Shortly after the failed attempt at the 200 day, the market crashes through its 50 day.
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3) the SP500 surfaces above the 50 day briefly. You may go long here. You'll get stopped out for another 1-3% loss. You go short when the market fails again and shows weakness.
4) is another area where you'll probably get whipsawed. No big deal. You just captured a huge short opportunity when the market went into its tailspin. You lose another 1-3% at this juncture.
5) Oooh what's this? A huge move to its 50 day. Wait a minute... we saw this at 4) didn't we. Well guess what, this time we didn't get stopped out when we put money to work as it broke through the 50 day. We're about to capture a huge move that more than erases the 1-3% loss that we took at 4).
6) is an important area. The SP500 just broke through its 200 day - the first time in over a year! It's kind of irrelevant because the 200 day is still downward sloping. But... wait... what's this? Bam! In July the SP500 bounced of its 200 day and skyrocketed through its 50 day. 100 points later and here we are.
3) Riding stocks in uptrends.
Example: AAPL.
Ah, everyone's favourite stock. Yes, it's ridiculously expensive. Yes, Steve Jobs could drop dead any day now. Blah blah blah. These things are irrelevant when you distill everything down to moving averages.
Between October and March AAPL was in a tight range. Everytime the stock hit 80 it rebounded only to pull back from the 100 area. You can see the 50 day moving average was moving sideways and would have given you several signals that would lead to whipsaws. That's fine. Let's say you bought AAPL the five times it broke through its 50 day during this period. You would lose 1-3% as you get stopped out. Then you do the same thing in March... and here's where the action happens. You capture a move that's almost 100%!! In June the stock corrects to its 50 day. Stay long. In July it corrects to its 50 day. Textbook stuff. Stay long!
So that's it. Begin your day by scanning through the SP100 stocks. Which stocks are trading above their 200 day? 50 day? Which stocks are breaking down (e.g. Solar stocks a couple weeks ago). Buy stocks in uptrends that are responding to their moving averages. Avoid stocks that are going sideways and whipsawing through their moving averages. Short stocks like UNG that are in downtends.
Even if you don't believe in this stuff and think its mumbo jumbo and want to stick to the fundamentals, it still pays to pay attention. Spend 5 minutes a day looking at the broader indices and commodities. Is the market strong (above its 200 day)? Is it weak (below and failing at its moving averages)? You would have avoided the pain of the last year by simply following the rule to avoid any long investments when the SP500 is trading below its 200 day moving average.