Chart o’ the Day: “Overbought”

It’s easy to poke fun at people who’ve been using valuation or some other fundamental indicator as a market timing signal. It’s demonstrably ridiculous and the results for the most stubborn among them have been disastrous.

Equally ridiculous is the idea that any one or two technical indicators can tell you when an uptrend or a downtrend is through running its course. We all have our favorite technical measures of price but, in the end, all of them are subservient to price itself.

Here’s the blogger at The Short Side of Long with a look at the “overbought” nature of the stock market all year, which clearly can persist in not mattering for quite a long time. The percentage of stocks trading above their 200-day moving averages rose into “overbought” territory around 80% last October and stayed there pretty much all year:

Just a quick update on one of my favourite indicators for the stock market – percentage of stocks within the S&P 500 trading above the 200 day moving average. The indicator continues to flash a warning signal, something I have discussed on my blog for the last few months. So far the market has turned a cold shoulder to on going bearish divergence as it continues to tear higher into record territory.

Chart 2: The stock market has been overbought for the whole of 2013


Oh well.

The next time someone cites this or any other single indicator (fundamental or technical) to bolster their bull or bear case, be sure to reply with “So?” No signal operates in a vacuum and, as I like to say (perhaps too often), it’s not different this time – It’s different EVERY time.

Not all of the metrics you choose to follow are going to be telling the same story at once and some of your signals – even your preferred ones – can spend what feels like forever in the cosmic penalty box, mattering less than the price of tea in China.


Another Look At Breadth (Short Side of Long)



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