Having a good trading method is only part of the problem. One must also find the right trading "universe."
The original Turtle Traders learned this, and so should we.
We have been getting some good questions about our TCA-ETF system and why we chose the IShares universe that we have reported each week for many months.
Our criteria were logical and not overly restrictive:
- We wanted an open-ended ETF, since we did not want to be concerned with a possible discount or premium to NAV.
- We wished to avoid ETF's that were cap-weighted in sectors where a very few stocks would dominate.
- We wanted plenty of liquidity, so that the program could be scaled up as our assets grew.
- We also wanted enough trading action so that the slippage from our moves would not be too great.
- We needed enough data so that the model could be employed effectively.
The last point has been a big restriction, since we needed about one year's worth of data before a new fund could be added. Unless there was a simulated history, we could not effectively employ a new ETF for nearly a year. (At one point we were devising our own sectors and avoided this problem, but the ETF's are a popular and inexpensive alternative.)
Some Additions
In response to a suggestion from one of our smartest and most knowledgeable investors, we reviewed several of the Van Eck Global Market Vector ETF's to our trading universe.
Since some of the prime candidates did not have the requisite trading history, although all other criteria were met, we asked Vince to revisit his methodology. Without giving away Vince's secrets, let us say that his approach does a lot of filtering to reduce the signal-to-noise ratio. He made some adjustments to achieve greater stability. It is non-linear filtering that involves a "pathological time series."
The happy result is that we can now include ETF's with a four-month data history. One of the new choices is currently in the top eight, so we will be buying it on tomorrow's opening. The new ETF's will become part of our weekly report. The new alternatives include alternative energy, gaming, coal, agribusiness, Russia, and nuclear energy.
An Invitation to Readers
We have offered our results as a general benefit to the community, reporting with a one-day lag on a weekly basis. We now have a weekly program for investors as well as our sector partnership which trades daily.
We are open to suggestions about new ETF's that should be part of the universe. Our experience has been that any ETF that meets our screening tests, improves long-term performance. Feel free to make suggestions.
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