iBankCoin
Joined Nov 11, 2007
1,458 Blog Posts

Bottom Signal: Percentage of Stocks Above 20 and 50 Day Averages At Historic Lows

The percentage of major exchange listed stocks above their 20 and 50 day moving averages has fallen to levels that have been associated with bottoms in the market.

Click on the chart to enlarge it…

The middle pane of the chart is where we find the percentages.

  • The green line is the percentage of stocks trading above their 20 day moving averages. It is registering 14.73%.
  • The red line is the percentage of stocks trading above their 50 day moving averages. It is registering 19.96%.

While the chart clearly shows that these levels have been strongly associated with bottoms, I decided to run a test to be sure. The green and red arrows in the graph above show the buy and sell points, which are specified in the buy rules below.

The Rules:

Buy SPY at the close if:

  • the percentage of stocks trading above their 20 day moving averages is less than 15% AND the percentage of stocks trading above their 50 day moving averages is less than 20%.

Sell X days later. No commission or slippage included. All SPY history used.

The Results:

While volatile, the results are very bullish. There are 54 occurrences of this setup, but the samples are reduced to 17 when the trade is held for the full 50 days.

Let’s roll the chart back further and examine a few more years worth of trades.

Save for the trade made in September 2008, this setup has been remarkably successful at identifying turning points.

Note the spikes in volume which occur near or on the exact same day as the buys. Scroll back up to the first chart and you’ll see that there was a spike in volume on Friday, but it was not nearly has strong as previous volume spikes. That worries me a bit. It is possible that we have not yet had enough capitulation for a bottom, but this study shows that we are likely very near to one.

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12 comments

  1. The Fly

    nice

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  2. Lurker

    In the first chart, there’s seems to always be a dip following the sell signal. From those dips, there are spectacular gains. Very interesting.

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  3. Bozo on a bus

    Following Lurker’s comment – One thing that struck me was that several instances following where the green arrows indicated low levels of breadth showed divergences between S&P and breadth, where breadth improved but S&P declined a bit. This period lasted up to 2-3 months. I would probably call this consolidation, and I wouldn’t be surprised to see it here through the summer.

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  4. ChuckTheKillerDoll
    ChuckTheKillerDoll

    good analysis…this time, I could replicate exactly the same results…I tried the same setup to other ETFs but they don’t point the same north..thanks Killer Doll.

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    • Woodshedder

      Thanks. Are you using AmiBroker?

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      • ChuckTheKillerDoll
        ChuckTheKillerDoll

        no…I have a prop library in R to backtest and ninja to put the trades to work. I decided for that some time ago in order to customize statistics, views and others…Anyways, AmiBroker is robust and pretty good…I guess creativity is the most important thing in this business not the tech as in…

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  5. ChuckTheKillerDoll
    ChuckTheKillerDoll

    btw, you have plenty of creativity…

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