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mojoDallas (< 20)

Simple Voodoo (Make 50% Versus Lose 15% in 2008-2010)

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December 05, 2010 – Comments (3) | RELATED TICKERS: ^DJI , ^GSPC , ^IXIC

I am back looking at technical indicators (Voodoo Stock Picking) as part of an overall shift in my investment strategy.  So, I thought I would start with the simplest of indicators and see what the impact of using this would be versus just buy and hold.  The indicator I chose was to buy into an index fund when the Close Price crossed above it's Exponential Moving Average EMA of 45 days and short the index fund when it the Close Price crossed below the EMA(45).

I chose to do my study with four major indexes (Dow Jones Industrial Average, S&P 500, Russell 3000 and NASDAQ 300) and over the last 3 years (a lot of big ups and big downs).  The results were somewhat suprising:

Index                Buy & Hold          EMA (45) Long/Short

DJI                          -14.18%                     +23.71%

S&P 500                -16.55%                     +48.19%

Russell 3000        -14.08%                     +45.93%

NASDAQ 300         -2.37%                       +55.90%

 

I find it somewhat suprising that even this simple application of a technical indicator could have made such a big difference in the returns of a portfolio invested in index funds.  Even though there is an overall bias that technical analysis is voodoo versus taking a value approach to stock picking, I gotta say even a little simple "VooDoo" can go a long ways towards profits.

3 Comments – Post Your Own

#1) On December 05, 2010 at 2:37 PM, bg11235 (30.58) wrote:

Academic research has supported the veiw that momentum factors (read technical indicators) producing positive excess returns for years. It's become a standard part of sophisticated quant strategies (applied naively you can still lose your shirt). Since most of the quant shops use it in one form or another it becomes self-fulfilling prophecy. The downside of self-fulfilling prophecy, though, is that it loses touch with economic reality and when it falls it will fall hard. But I wouldn't bet against this newly forming bubble yet.

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#2) On February 10, 2012 at 8:27 AM, 3Fairfield (52.86) wrote:

Very interesting topic, mojo. I hope you write some more on this--I'd like to understand the 'voodoo' a little better.  But one observation--our portfolio manager is a quant guy and he didn't turn in results anything as good as the ones you came up with!

 Will you be using technical indicators for your portfolio management this year?

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#3) On February 10, 2012 at 8:41 AM, dbtheonly (< 20) wrote:

Mojo,

How many transactions occurred &  do your returns reflect the brokerage charges?

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