|
The concept of trading for persistency is
simple. The rules are this; buy on and up day and sell on a down day. The results
of this strategy have blown away buy and hold and were demonstrated in the
article: - The
Non-Random Walk Theory Persistency. The article also showed that the day
to day upward consistency of the market deteriorated around and during the
Bear Market; this could be seen in the growth of $1000 equity charts in the
above mentioned article. Some people argue that this deterioration was due
to program trading, I would argue that is was caused by the Bear Market and
the after affects of September 11, 2001. The conclusion is persistency is an
exploitable phenomena and while it may have deteriorated for a while it never
disappeared in the small cap markets. Note: It is also important to remember
day to day persistency is only one of the ingredients CET Capital uses in our
over all methodology.
First I will address the issue of "program trading"
After it is all said and done an increase in "program trading" is just another
way of saying an increase of volume. When investors talk about volume they
are talking about liquidity. One way to measure "program trading" is to look
at the Commitment of Traders open interest. As of March 7, 2006 open interest
was 695,690 contracts for the S&P 500, 74,882 contracts for the NASDAQ
100 and 34,247 contracts for the Russell 2000. The action is, has been and
will be in the S&P 500. The reason why "program traders" or "big money" play
the S&P is because of its attractive liquidity. Small cap stocks by their
nature are illiquid. The less liquid a market the larger the bid-ask spread.
Try liquidating a billion dollar position of small cap stocks. You can do it
but it will take awhile and you might not get the price you like. It is the
small cap illiquidity issue that deters active trading and it is the lack of
active trading or volume which is one ingredient that leads indices
to higher persistency. That said as long as the Russell 2000 stays small cap
dominated it should remain more persistent then the larger cap indices.
The golden rule of investing is Preservation of Capital
The easiest way to lose money in the markets is to sit on a losing position.
Trading for persistency forces you to sell after one down day therefore you
do not hold losing positions. The flip side to that coin is you can lose money
if you are trading during choppy market conditions. For example, if you buy
on an up day and the market closes down the next day forcing you to sell.
Persistency is here to stay
Lastly I want to show you a chart of trading for persistency on the Russell
2000 vs. buy and hold of the S&P 500 from 1998 until February 2006. During
this period the Russell 2000 had a 55 percent chance of closing up two days
in a row. Trading for persistency during this time produced a compounded annual
return of 13.27 percent with a maximum drawdown of 34.53 percent. Buy and hold
of the S&P 500 produced a compounded annual return of 3.45 percent with
a maximum drawdown of 49.15 percent.

There comes a point in every money mangers life when they have to take what
they have been testing and trade it with real money. That point for CET Capital
was in the beginning of 2003. So far performance has been good and drawdown
has been low. It is also important to remember day to day persistency is only
one of the ingredients CET Capital uses in our management programs.
|