Tom doesn’t really trade.
There may have been a time where DeMark was useful, especially given his more thoughtful approach to technical analysis, but this was before computing became cheap enough where anyone can easily run multi-variate analysis in real-time. Using static models and approaches no longer work because the market is constantly adjusting and incorporating information. Signals decay very quickly and firms like RenTech and other quants (which are the modern-day technical traders) are constantly running new tests to find new signals that decay even faster.
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