Stock Exchange: How Long Was Your Learning Curve?

 | Mar 23, 2018 03:41AM ET

The Stock Exchange is all about trading. Each week we do the following:

  • Discuss an important issue for traders;
  • highlight several technical trading methods, including current ideas;
  • feature advice from top traders and writers; and,
  • provide a few (minority) reactions from fundamental analysts.

We also have some fun. We welcome comments, links, and ideas to help us improve this resource for traders. If you have some ideas, please join in!

Review:

Our previous Stock Exchange asked the question: Are You Trading The Energy Sell-Off? We considered the energy sector’s continued underperformance, and compared that to the ongoing strength of technology and momentum stocks in particular. The year-to-date divergence persisted through this Thursdays sell-off, and a glance at your news feed will show that the key points remain relevant.

This Week: How Long Was Your Learning Curve?

No matter how great your natural abilities, it takes a lot of practice to become good at something. For example, newbies can’t shoot par on their first ever round of golf, and traders cannot become consistently profitable without a lot of practice. And even after a lot of practice, it’s still not for everyone (this is why everyone that loves golf cannot be on the PGA tour). Similarly, according to world renowned trader, Charles E. Kirk:

Over 90% of investors/traders… would be better off adopting passive strategies such as “lazy portfolios”, which are not actively managed and relieve the investor of almost all decision-making (thus the term “passive” rather than “active”).

The only thing the 90% plus have to learn is passive portfolio management, i.e. how to match the market’s overall performance.

And for more perspective, according to a study referenced by Dr. Brett Steenbarger:

Over 80% of traders were unprofitable in the study and, after expenses, only a small proportion were profitable. Not surprisingly, the smallest traders tended to be the least successful. The larger ones, of course, were large precisely because they had accumulated some degree of success.

For us, our models were developed using 20 years of data—first training and then out-of-sample testing. The real-time period is post learning curve. For example, Holmes had over 40,000 possible choices in the training period and 30,000 in the OOS phase. That is a lot of “experience.”

Two of the factors we’ve learned to watch in our trading is the short-term and long-term technical health of the market, as reported in WTWA. And even after a day like yesterday, our short-term indicators remain “neutral” (when that is the rating, we still expect to be able to trade profitably, but we are obviously monitoring very closely).

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