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The January Baromoter at Trader’s Narrative




The January Baromoter


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The beginning of the year is a special time that rightly attracts much attention. The January effect is mostly over by now and hopefully you were able to trade this phenomena profitably. It is too bad it only comes around once a year.

january barometer 2009

There are a few other similar patterns for January. Probably the best known is “as January goes, so goes the year”. Another says that the first 5 trading days determine the market’s returns for the whole year ahead. And another says that how January performs predicts the direction of the market for the remaining months of the year.

Mark Hulbert showed a few days ago in this column that the 5 first trading day pattern simply isn’t true. In fact, the only one that does have validity historically is the third one listed above. The January Barometer says that the performance for the first month has a predictive quality for the returns generated between the second and twelfth months.

Because of the positive bias of the market, this indicator works best when it predicts a bullish scenario for the remaining 11 months of the year. From 1940 to 2008, January’s return was positive 43 separate times. Of these, 86% of the time the next 11 months were also positive. On the other hand, in only 40% of the cases when January was negative was the rest of the year also negative. The overall accuracy of the January Barometer within that time range was 73.9%.

So with an almost 75% historical accuracy rate, we’ll have to wait until the end of this month to see what it augurs for the rest of the year.

Below is a look at the raw data from 1940 to 2008:

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2 Responses to “The January Baromoter”  

  1. 1 darrell

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    Well so far so bad. DOW opened the year at about 8800 and we are now what… 8400ish. Oh man… 2oo9 is going to be one depressing year, no bonus, no dividends, no fun!

  2. 2 jeremy

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    As far as i can see the January indicator works just 75% of the time, not a conclusive percentage.. it also seems to me that these seasonal indicators don’t work very well in abnormal times.

    Investors Chronicle ran a very good piece in the summer 08 on how we should very likely see a Presidential rally ahead of the election based on 50 yrears of prior stock market performance data, result-down 35%!

    I would not rely much on these types of indicators at present until conditions normalize.

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