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Sharpen Your Trading With Occam's Razor

  
  Education
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 Would you believe that a 14th century priest, and his concepts, can help make you a better trader?  Well, English logician and Franciscan friar William of Ockham really can make you a better trader.


Ockham developed the concept commonly referred to as Occam’s Razor.  Simply put, this principle favors the simple over the complex, when there is a choice to be made, or a path to be followed.


How can this apply to trading? A few different ways.


First, if you are a system trader, perhaps your approach has too many rules, too many parameters, or too much optimizing.  While every parameter you add might make your system better historically, the more parameters you have, the less prone the system is to work going forward.  Simpler concepts and simple rules tend to be based on fundamental market principles – ones that aren’t as likely to change.


Second, if you are a discretionary trader, you might trade off of news reports from Blue Channels  and multiple other sources.  Multiple news sources might give you more data, but does it really give you more knowledge?  You might find that with multiple, conflicting pieces of information, you actually can’t trade at all – rather, you are a victim of “analysis paralysis.”


Third, maybe your trading office looks like the control room for the Space Shuttle. If you try to trade off all of the information shown on all the screens, you might just find yourself overwhelmed.  It is better to stick to a few monitors of information, and know that information very well.  The best traders don’t need a dozen monitors to trade well – usually 1 or 2 monitors is plenty.


Many new traders tend to think that that more complicated they make trading, the easier it will be to “solve” the markets.  Instead, they should be listening to William of Ockham, and making things simpler.  Simple, done correctly, can lead to more profits, and stand the test of time better than complicated approaches.

Why Traders Lose Money ?

  
  Education
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why13One of the most frustrating things a trader can experience is being dead on right about a trade, taking it, BUT.. still losing money! How can this be? This can happen in five different ways, each of the first four contain a lesson for better planning the fifth way to lose money in this list is just part of the game.

  1. You enter your trade correctly and it goes in your favor, BUT… you do not have the right exit strategy to capture your profits and they evaporate due to not having a trailing stop or waiting to long to exit to bank those profits. Sometimes winners even turn into big losers win not managed correctly. You have to have a plan to take profits while they are there.
  2. You enter the right trade BUT… at the wrong time, you either exit not allowing your trade enough time to work or you are stopped out but do not have a plan to get yourself back in the trade with the right set up. The right trade with the wrong timing pays nothing.
  3. You have the right entry and it goes in your favor BUT.. you pick the wrong stock option to express your trade. If you pick an option with a high implied volatility your trade has to overcome that vega priced into the option, after an expected earnings event that vega value will be priced out and you need the move in intrinsic value to make up that difference. With a far out in time stock option you need the price to move enough in the underlying in the time period of the option to make up the theta cost of time embedded in the option. It is crucial to understand the option pricing model to make the right option trades to express your time period and expected move. Sometimes options also do not have the liquidity in some stocks,or far out time frames, or far out of the money strikes. Getting in and out of an illiquid  option trade can be very expensive. (more…)

Improve your Trading Skill

  
  Education
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Would you believe that a 14th century priest, and his concepts, can help make you a better trader?  Well, English logician and Franciscan friar William of Ockham really can make you a better trader.

Ockham developed the concept commonly referred to as Occam’s Razor.  Simply put, this principle favors the simple over the complex, when there is a choice to be made, or a path to be followed.

How can this apply to trading? A few different ways.

First, if you are a system trader, perhaps your approach has too many rules, too many parameters, or too much optimizing.  While every parameter you add might make your system better historically, the more parameters you have, the less prone the system is to work going forward.  Simpler concepts and simple rules tend to be based on fundamental market principles – ones that aren’t as likely to change.

Second, if you are a discretionary trader, you might trade off of news reports from CNBC, Bloomberg and multiple other sources.  Multiple news sources might give you more data, but does it really give you more knowledge?  You might find that with multiple, conflicting pieces of information, you actually can’t trade at all – rather, you are a victim of “analysis paralysis.”

Third, maybe your trading office looks like the control room for the Space Shuttle. If you try to trade off all of the information shown on all the screens, you might just find yourself overwhelmed.  It is better to stick to a few monitors of information, and know that information very well.  The best traders don’t need a dozen monitors to trade well – usually 1 or 2 monitors is plenty.

Many new traders tend to think that that more complicated they make trading, the easier it will be to “solve” the markets.  Instead, they should be listening to William of Ockham, and making things simpler.  Simple, done correctly, can lead to more profits, and stand the test of time better than complicated approaches.

The First Requirement for Success

  
  Education
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“Sun Tzu said if you sit by the river long enough, you’ll see the bodies of your enemies float by. The key is “long enough.” If you live long enough, you have to be the survivor. When I was a kid, we didn’t have the video games you have today, so we used to listen to comedy records. One of the greatest ones was Mel Brooks doing the 2000 year old man. Carl Reiner says to him, “how did you get to be the world’s oldest man?” And he says, “Simple. Don’t die.” How do you get to be the world’s oldest investor? The answer is don’t crap out.

“So if you look at distressed debt where we started in 1988, I could tell you who our number one competitor was in every year through 1995 and not one is a main competitor today. And it’s not because of what we did; all we did is perform consistently. They crapped out. It sounds simplistic to say, but the first requirement for success is survival…”

– Howard Marks

What steps do you take to ensure survival as a trader? (more…)

No Risk-No Gain

  
  Education
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Trading is ALL about managing risk and probability.  The risk part is easy, you can quantify your risk by setting a stop on all your trades.  Yes, a stock can gap through your stop overnight, so we can’t know are risk 100% for certain, but setting aside major overnight announcements and earnings, we can get a pretty good idea.  The probability part is a little more difficult.  I don’t have empirical evidence to support the patterns I trade on both the long and shorts side, other’s have done a decent amount of research, and I have read some, but at the end of the day I have always believed that so called voodoo of technical analysis is a different religion for everyone.  Technical analysis, being little more than the study of the psychology of the market, is interpreted by everyone differently, and therefore should not be seen quantitatively to a large extent, but as more of an art.  It’s just like a psychologist, you can go to 4 different guys and get 4 different answer to your issues, they will approach you in different ways, ask you different questions, it’s a feel thing.

Anyway, I want to make the point in this post that you’ve got to understand and accept the risk you are putting on when you make a trade.  I will review a trade of mine where I made a terrible mistake and foresake this principal, and it has cost me quite a good deal of profits over the last few weeks, especially give that my thesis was correct.  It’s not enough to have good ideas, you must execute them properly.

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