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Friday, November 22, 2024

Timing the Market

By Jean-Luc Saillard

Why time the market?

When dealing with your retirement savings, it is always prudent to seek to preserve your capital especially if you are getting closer to the time when you will be needing the money. As investing in the stock market brings a lot of uncertainty and risks (look at the last three years!), some market analysts have developed methods to avoid being caught in deep corrections like the one from 2008 to early 2009. We believe that a retirement investment strategy should feature a market timing method.  The following two market timing methods are examples of methods I find interesting.

SMA on a Monthly Chart

Some time ago, I wrote a blog post about a market-timing method that I discovered in an old article of Active Trader (Mebane Faber – April 2009). The system has you in the market when it is above the ten-month simple moving average, and has you going to cash when it is below that average.  The author claimed that using this method would yield better returns over time and limit account drawdowns from sharply falling markets. Between 1900 and 2008 the strategy returned 10.45% a year versus an S&P market average of 9.21%. It has proven to limit account drawdowns in bear markets significantly.

Here are some illustrations of the equity curves comparison:
 
 
The vertical axis is a log scale – the difference today is between $1 million for the non-timing system and $5 million with timing!
 
The next graphic shows the same comparison since 1972, but also adds a curve for a margin portfolio with 2x leverage (non-IRA for example)
 
 
Once again, the vertical axis is a log scale. Clearly, the Internet bubble years between 1996 and 2001 were favorable to the non-timing system, but the subsequent crash helped the timing system recover nicely – lower drawdowns do help! Over time, the leveraged portfolio performs much better than its 2x multiple would indicate.
 
With that in mind, I refreshed my charts to see where we stand. So below is the latest monthly chart with a 10 period SMA as recommended by the author.
 
 
I have circled in green the month where the system would have put us in cash. It’s not perfect as for example in mid-2004 and mid-2010, we would have been kicked out in the middle of a rally. But otherwise, the system keeps us out of big bear markets! And the last signal to get out comes at the end of last month when the August monthly bar closed below the 10 period SMA. And pretty convincingly. September did nothing to help so this might signal the start of a correction.
 
So, where does that take us – let’s look at the 2008/2009 correction in relation to the previous rally:
 
 
Using Fibonacci extensions (which are drawn between the highs of 2001 and 2007 and the lows of 2003) to gauge the market movement and project price targets, we can see that in 2008/2009 we retraced over 100% of the 2003-2007 gains with a congestion zone around the 38.2% line circled in green. Now, let’s look at where we stand now:
 
 
We have retraced to the 23.6% line of the 2008-2011 move so far, but broken it. The next line which proved temporary resistance (38.2%) stands at around 102 on SPY. I am not making any predictions, but this would be the most logical point of resistance. In 2010, we had a mini-corrections but the 23.6% line held:
 
 
That has not been the case this time, so we might need take this more seriously. To be totally accurate, the author mentioned that she uses a 10 period average for the crossover, but also says that other periods such as 6, 8 or more than 10 might work depending on the market. It also seems that even numbers work better than odd numbers of periods.

Average Crossovers on Weekly Charts

Below I will expand on methods outlined by Charles D. Kirkpatrick II in his book, Invest by Knowing What Stock to Buy and What Stock to Sell, and at his web site, as well as outline a new method based on his findings. I spoke about this author and this book in a previous post where I mentioned his fundamental analysis method. I will not go over his stock picking process, but what I found interesting was his market timing methods – he outlines two of them, one simple and the other more complex. Given his success, there’s something to be learned from him. For reference, here is an equity curve of his current portfolio:

#

The lime green line shows the results of Kirkpatrick’s picks. But the purple line is the result of his timing rules being applied to the stock picking screen. As you can tell by the flat line, for a big portion of 2008 and 2009, he was out of the market. He did miss the mid-year rally in 2008, but was out during the crash and suffered little drawdown compared to the market. Obviously the method is not perfect as 2010 was not great, but it could also be the results of bad picks. But back to his market timing methods. As explained in a PDF linked on his web site, Portfolio Construction using Kirkpatrick Methods, sometimes the simplest approach is the best. He uses 2 weekly moving averages and watches for crossovers (fig. 1) When the 2-week SMA of the S&P500 crosses below the 14-week SMA of the same index, he moves to cash. When the 2-week average crosses above the 14-week average, he moves back in to his screened portfolio. To illustrate his approach, let’s looks at these averages over the last 2 years:

Figure 1. The chart below is a weekly chart of SPY with a 2- and 14- week SMA

The red circles point out where Kirkpatrick would have gone to cash while the green ones point to weeks where he went back to the market. These are weekly candles, so while there is some whipsaw, this method does keep you in the market during good rallies and keep you out during corrections.

For example, this method would have kept you out of the August and September corrections this year. You might miss tops and bottoms but it beats buying high and selling low. The method as explained in Kirkpatrick’s book is more complicated and deals with scaling in and out. His portfolios are based on models – mostly picking stocks with low price-to-sales ratio and of high relative strength (positive momentum). He tracks the model value on a weekly basis and checks it against moving averages – 12-, 26- and 52-week averages (fig. 2) If the value of the model crosses below the 12-week average, he sells 25% of the portfolio. If the value declines below the 26-week average, he sells another 25% and liquidates everything once the value declines below the 52-week average. This protects him from complete wipeouts. His market entry is the opposite of the exit – investing 25% once the value crosses over the 12-week average, another 25% when above the 26-week average and is fully invested once above the 52-week average. Since not everybody will pick stocks using screening rules, this might be harder to implement. But we can use an index or an ETF. Kirkpatrick may or may not approve of this, but based on the chart below, it might provide the basis for a new method. We have not backtested any of these methods yet, but we will publish backtesting results in future articles.

Figure 2. The chart below is a weekly chart of SPY with a 12-, 26- and 52- week SMA

In the chart above, the method would call for going to 25% cash when the index crosses one of the SMA lines, to 50% cash when it crosses 2 of the SMA and all in cash once below all 3 SMA. And reverse the process for going back to market, scaling back in each time the index crosses an SMA line 25%, then another 25% up to 100% in when all SMA lines have been crossed. This method would have kept you out of the worse corrections and got you back in quickly once the corrections were over, but in a cautious manner. There is some whipsaw at the tops and bottoms (and remember, this is a weekly chart going back 8 years), but in general, you are in during good rallies and out during corrections (or short)! Now all you need is to pick winners!

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