The oldest book ever written about the stock market business is Joseph Penso de la Vega's "Confusion de Confusiones". In his masterpiece, Vega describes the action of the world's oldest stock market in Amsterdam at the end of the seventeenth century. It is amazing to see how his observations are still valid today. The following paragraph from his work summarizes one of my core trading believes pretty well, so I'm tempted to print it out and post it on top of my desk:"The expectation of an event creates a much deeper impression upon the exchange than the event itself. Only the shrewd observer who makes it his business to watch these things conscientiously, without blind passion and irritating stubbornness, will hit upon the right thing innumerable times, though not always."
Translation into modern terms:
- Buy the rumor, sell the fact
- Trading is a business, not a hobby
- You need to be open and ready to change your stance immediately
- Trading is a "probability game", where you are wrong quite often
So if you want to improve your trading, read the old masters. Most of the new books are derivatives anyways.






