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If you are not yet convinced of a correlation between the two, then let's make the daily geomagnetism into a cumulative trend line. Out pops a route map for the market:
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Now let's combine cumulative trend geomagnetism with lunar phasing (a correlation between stock market returns and lunar phases is established in this paper by Dichev and Janes) and zone in on the last two years to see a bit more detail. The result is a model that not only captures the stock market's route map but often the shorter term waves also. In addition, where the stock market strays from the model these provide good short and long opportunities, as highlighted.
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Lastly, note the tail on the red-yellow line that stretches several weeks into the future. We know lunar phases in advance and can predict geomagnetism up to three weeks out (but like weather forecasts, not 100% accurately). That gives us a predictive tool as we can assess the likely waveform, the trend direction, and any notable straying of the stock market from the model. Returning to the first chart above, we can also look out for high geomagnetic disturbances occuring, as there is often a lagged effect on the stock market. You can follow both these models at my site, www.amalgamator.co.uk.