It means that using a system that is designed by yourself is likely to work better than using a system that is designed by someone else since it fuses with your personality.
It doesn't exclude a possibility that it can be taught with a condition of the same background and similar personality.
It doesn't exclude a possibility that it can be taught with a condition of the same background and similar personality.
Quote from azmi:
its a combination of both nature and nurture - few if any are "born" traders..and those with so much natural talent can pretty much be good at whatever it is they do
personality plays a large part in trading - the biggest part being in exiting a position. Anyone can enter a trade - little or no guts are involved there - difference comes in how and why you choose your exit - and that is an amalgamation of experience, education, personality, and ofcourse natural "gut" feeling. Aggressive traders might hold in a technical pullback and not get twitched out - they will ofcourse run the risk of large drawdowns and losses and are emotionally prepared to endure them. Passive or risk-averse traders will refused to get twitched out and have quick exits - again a product of their environment or personality. Both styles can be successful - the least successful are ofcourse "cowboys". We always hear of one-hit wonders who made a million one yr but never hear of them losing 2 million the next year.
The best example I can think of - at the risk of upsetting majority of the Elitetrader participants - is Jim Cramer. Out of a 200mio hedge fund he lost 90mio in a span of 6-8 months in 1999 to memory (could be '98 dont quote me), but instead of shutting down the fund and being the "joke" of the street he came back in made 150mio the following 6-8 months. Whatever disregard one may have for his fluffy tv show today - to pull off a feat like this requires alot more than just a harvard MBA and GS experience. Most people I know would have committed suicide.
when i used to be a currency trader with a bank, the best traders in the market werent those with MBA's and quant PHD's but street-smart and hungry kids who could quickly isolate the trades where they were about to do well or get in trouble, (typically overly educated people have rarely done well in trading because they fall victim to analysis/paralysis - ofcourse there are exceptions). But I disagree that any single person can be picked off the street and simply "taught" the ways and means of buying low and selling high if he lacks a natural conviction toward the job
The best trading systems developed will only work so well as long as your personality fuses well with the system - and same system can work rather disagreably with someone with the exact same background but a different personality