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Sharpen Your Trading With Occam's Razor

 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.

A Dozen Reflections on Life and Markets

reflectiononlifeI’ve never seen a trader succeed whose explicit or implicit goal was to not lose. The trader who trades to not lose is like the person who lives to avoid death: both become
spiritual hypochondriacs.

No union was ever destroyed by a failure of romance. It is the loss of respect, not love, which ends a relationship.

Love, once present, never dies. It must be killed.

Sometimes we select markets–and trading styles–much as we choose romantic partners: by their ability to validate our deepest-held images of ourselves. Our choices generally succeed, for better or for worse.

Many a trader fears boredom more than loss, thereby experiencing the two in sequence. (more…)

Trading Is A Business. Treat It Like One.

As I was preparing a presentation and looking for some interesting material I came across “Trader Vic – Methods Of A Wall Street Master” and this paragraph got my attention:

“I base my business philosophy on three principles, listed here in terms of importance: preservation of capital, consistent profitability, and the persuit of superior returns. These principals are basic in the sense that they underlie and guide all my market decisions. Each principle carries a different weight in my speculative strategy, and they evolve from one to another. That is, preservation of capital leads to consistent profits, which makes pursuit of superior returns possible.”

This was written in 1991 but I think its still a very valid proposition. I am also adding this line from the same book, “In my view, the way to build wealth is to preserve capital, make consistent profits, and wait patiently for the right opportunity to make extraordinary gains.”

A Book of Five Rings by Miyamoto Musashi

A Book of Five Rings (or Go Rin No Sho) was written by the samurai legend, Miyamoto Musashi, in 1645. I read this text several years ago and while the central theme is ‘strategy’, the lessons that left a lasting impression concerned ‘true understanding’ and the importance of practice; of practising one’s arts, one’s discipline, one’s techniques. Practising until third nature becomes second nature, becomes first nature. In this age, when knowledge is plentiful and experience lacking, I believe there is much to be learned from Musashi’s wisdom:

The Kendo student practises furiously, thousands of cuts morning and night, learning fierce techniques of horrible war, until eventually sword becomes “no sword”, intention becomes “no intention”, a spontaneous knowledge of every situation. The first elementary teaching becomes the highest knowledge, and the master still continues to practise this simple training, his everyday prayer.

Study this book; read a word then ponder on it.  If you interpret the meaning loosely you will mistake the Way.

If you merely read this book you will not reach the Way of strategy.  Absorb the things written in this book.  Do not just read, memorise or imitate, but so that you realise the principle from within your own heart, study hard to absorb these things in to your body.

“To know the times” means to know the enemy’s disposition in battle.  Is it flourishing or waning? By observing the spirit of the enemy’s men and getting the best position, you can work out the enemy’s disposition and move your men accordingly.  You can win through the principle of strategy, fighting from a position of advantage.

…the way to understand is through experience.

You must bear this in mind.

Practise this well.

You must research this well.

You must appreciate this.

You must train constantly.

You must consider all this carefully.

Study this well.

You must train hard to understand it.

With detailed practice you should be able to understand it.

If you train well enough you will be able to strike accordingly.

You must train repetitively.

Learn this well.

A great quote

I’m sure every trader has run into some kind of negativity from know-it-all chodes who just don’t get what this subject is about – it goes something along the lines of “What good does it actually do? You are just stealing other peoples money?” blah blah *yawn* blah….

Here’s a great quote from a book I’m reading “Hedge Fund Edge” that demolishes their complaints:

“Principle 7: Develop a Love and Respect for Trading, Free Markets, and Individual Liberty and Initiative.

Profits are just the gravy. When they test a group of traders, one of the traits that almost all successful traders and investors share is a deep understanding of how trading and investing is part of the process that allows humankind to progress. Even day-traders provide critical liquidity that allows others to hedge, companies to raise capital, and investors to invest with limited risk. Stock selection allows investors to become second-level venture capital firms, with their demand helping provide access to financing in areas where the people need capital most. The more you understand the remarkable way in which freedom and free association work to produce economic gain and real progress for humankind from new innovations and technologies, the more likely you are to feel a strong sense of purpose at being a part of such an incredible system. And the stronger your sense that your efforts are creating something good that is bigger than yourself, the more committed, enriched, excited, and innovative you will become.”

… so put that in your pipe and smoke it.

Trading Wisdom

One of my favorite trading tales involves a very wise, veteran trader who, when asked his thoughts on the market, would simply respond by saying “It’s a bull market,” or “It’s a bear market.” Younger traders simply seeking out a hot tip from the seasoned pro would often leave discouraged – or even annoyed, believing they were being fed a line. JL himself didn’t understand until years later the wisdom that was actually being dispensed with those words: The veteran was simply relaying the path of least resistance, or the trend for the general market, and therefore giving the trader an incredible edge in determining one of the many variables that makes up stock trading.

Traders should equate the general market to that of a big river with individuals stocks as floating logs. If ones objective was to ride in the general direction of the current, they would not stand on the bank looking for a log that was bucking that trend? Furthermore, even if they found one that temporarily headed in the wrong direction, more than likely it would only be a matter of time before the log reversed course and also headed in the way of all the other logs.

Traders would be wise to understand there are 3 directions a market can travel; up, down or sideways. As long as we trade stocks, this will be true – and just as valuable as Livermore’s seasoned trading friend’s advice was then it would be today.

Markets, like rivers, don’t change courses overnight – or even in a few days. It often takes many months if not years to properly establish a trend. Simply pull back any weekly chart over the past couple years and assess where the trend is going. If you aren’t quite sure, then more than likely cash remains the place for you.

Understand this basic, yet key, principle of trading, and you will already be well ahead of most.

Respect the Trend

One of my favorite trading tales involves a very wise, veteran trader who, when asked his thoughts on the market, would simply respond by saying “It’s a bull market,” or “It’s a bear market.” Younger traders simply seeking out a hot tip from the seasoned pro would often leave discouraged – or even annoyed, believing they were being fed a line. JL himself didn’t understand until years later the wisdom that was actually being dispensed with those words: The veteran was simply relaying the path of least resistance, or the trend for the general market, and therefore giving the trader an incredible edge in determining one of the many variables that makes up stock trading.

Traders should equate the general market to that of a big river with individuals stocks as floating logs. If ones objective was to ride in the general direction of the current, they would not stand on the bank looking for a log that was bucking that trend? Furthermore, even if they found one that temporarily headed in the wrong direction, more than likely it would only be a matter of time before the log reversed course and also headed in the way of all the other logs. (more…)

Trading Wisdom from -REMINISCENCES OF A STOCK OPERATOR.

Of course there is always a reason for fluctuations, but the tape does not concern itself with the why and wherefore.
My plan of trading was sound enough and won oftener than it lost. If I had stuck to it I’d have been right perhaps as often as seven out of ten times.
What beat me was not having brains enough to stick to my own game.
But there is the Wall Street fool, who thinks he must trade all the time. No man can always have adequate reasons for buying or selling stocks daily or sufficient knowledge to make his. play an intelligent play.
The desire for constant action irrespective of underlying conditions is responsible for many losses in Wall
Street even among the professionals, who feel that they must take home some money every day, as though they were working for regular wages.
It takes a man a long time to learn all the lessons of all his mistakes. They say there are two sides to everything. But there is only one side to the stock market; and it is not the bull side or the bear side, but the right side. It took me longer to get that general principle fixed firmly in my mind than it did most of the more technical phases of the game of stock speculation.
My losses have taught me that I must not begin to advance until I am sure I shall not have to retreat. But if I cannot advance I do not move at all. I do not mean by this that a man should not limit his losses when he is wrong. He should. But that should not breed indecision.
I was still ignoring general principles; and as long as I did that I could not spot the exact trouble with my game.
I can’t tell you how it came to take me so many years to learn that instead of placing piking bets on what the next few quotations were going to be, my game was to anticipate what was going to happen in a big way.
Their specialty was trimming suckers who wanted to get rich quick.
I had to make a stake, but I also had to live while I was doing it.
I was twenty when I made my first ten thousand, and I lost that. But I knew how and why, because I traded out of season all the time; because when I couldn’t play according to my system, which was based on study and experience, I went in and gambled. I hoped to win, instead of knowing that I ought to win on form.
And when you know what not to do in order not to lose money, you begin to learn what to do in order to win. Did you get that? You begin to learn!
No diagnosis, no prognosis. No prognosis, no profit.
The average chart reader, however, is apt to become obsessed with the notion that the dips and peaks and primary and secondary movements are all there is to stock speculation. If he pushes his confidence to its logical limit he is bound to go broke.
The game of beating the market exclusively interested me from ten to three every day, and after three, the game of living my life.
I couldn’t afford anything that kept me from feeling physically and mentally fit.
I was acquiring the confidence that comes to a man from a professionally dispassionate attitude toward his own method of providing bread and butter for himself.
It taught me, little by little, the essential difference between betting on fluctuations and anticipating inevitable advances and declines, between gambling and speculating.
He knows all the don’ts that ever fell from the oracular lips of the old stagers excepting the principal one, which is: Don’t be a sucker!
It never was my thinking that made the big money for me. It always was my sitting. Got that? My sitting tight!
That is why so many men in Wall Street, who are not at all in the sucker class, not even in the third grade, nevertheless lose money. The market does not beat them. They beat themselves, because though they have brains they cannot sit tight.
Disregarding the big swing and trying to jump in and out was fatal to me. Nobody can catch all the fluctuations.
Without faith in his own judgment no man can go very far in this game.
It was that I gained confidence in myself and I was able finally to shake off the old method of trading. 

Respect the Trend

One of my favorite trading tales involves a very wise, veteran trader who, when asked his thoughts on the market, would simply respond by saying “It’s a bull market,” or “It’s a bear market.” Younger traders simply seeking out a hot tip from the seasoned pro would often leave discouraged – or even annoyed, believing they were being fed a line. JL himself didn’t understand until years later the wisdom that was actually being dispensed with those words: The veteran was simply relaying the path of least resistance, or the trend for the general market, and therefore giving the trader an incredible edge in determining one of the many variables that makes up stock trading.

Traders should equate the general market to that of a big river with individuals stocks as floating logs. If ones objective was to ride in the general direction of the current, they would not stand on the bank looking for a log that was bucking that trend? Furthermore, even if they found one that temporarily headed in the wrong direction, more than likely it would only be a matter of time before the log reversed course and also headed in the way of all the other logs. (more…)

Respect the Trend

One of my favorite trading tales involves a very wise, veteran trader who, when asked his thoughts on the market, would simply respond by saying “It’s a bull market,” or “It’s a bear market.” Younger traders simply seeking out a hot tip from the seasoned pro would often leave discouraged – or even annoyed, believing they were being fed a line. JL himself didn’t understand until years later the wisdom that was actually being dispensed with those words: The veteran was simply relaying the path of least resistance, or the trend for the general market, and therefore giving the trader an incredible edge in determining one of the many variables that makes up stock trading.

Traders should equate the general market to that of a big river with individuals stocks as floating logs. If ones objective was to ride in the general direction of the current, they would not stand on the bank looking for a log that was bucking that trend? Furthermore, even if they found one that temporarily headed in the wrong direction, more than likely it would only be a matter of time before the log reversed course and also headed in the way of all the other logs.

Traders would be wise to understand there are 3 directions a market can travel; up, down or sideways. As long as we trade stocks, this will be true – and just as valuable as Livermore’s seasoned trading friend’s advice was then it would be today.

Markets, like rivers, don’t change courses overnight – or even in a few days. It often takes many months if not years to properly establish a trend. Simply pull back any weekly chart over the past couple years and assess where the trend is going. If you aren’t quite sure, then more than likely cash remains the place for you.

Understand this basic, yet key, principle of trading, and you will already be well ahead of most.

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