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1993issue C121-11

When Dow Theory signals fail after the decision-makers change

A 1993 interview reads price structure first, then asks why a familiar pattern is working. A reported hand study of Dow Theory is later set aside after two consecutive false signals, which the speaker ties to a shift toward always-invested institutional managers.

  • A 1993 interview frames market work as chart structure plus macro context, reading price first and then asking why a familiar pattern is working.
  • A hand study of Dow Theory from 1896 through 1991 is reported as having no false signal, after which two consecutive false signals in 1991 and 1992 led the speaker to underweight the method.
  • The speaker attributes that break to a shift from many individual decision-makers to a smaller set of always-invested institutional managers.
  • Named Trendline reversals are treated as book-defined observations, and a 2-1/2-year handwritten backtest is presented as the check on whether the trend theory still matches historical price structure.
Entries in this reading3 entries
Current trackDow Theory29 readingsTrendline128 readingsRule-based entry174 readings

Price first, then why the pattern works

A 1993 interview frames market work as a hybrid of chart structure and macro context. The working order is to read price first, then ask why a familiar pattern is working.

The interview argues that every technical method has an underlying logic. A trader should know why a signal works and how a change in market participants could invalidate it.

A clean window, then two false signals

The speaker reports a hand study of Dow Theory from 1896 through 1991 that found no false signal in that window.

The same speaker later underweighted Dow Theory after two consecutive false signals in 1991 and 1992. The break is attributed to a shift from many individual decision-makers to a smaller set of always-invested institutional managers.

Explicit Trendline rules and a written check

A named Trendline reversal procedure is treated as a named, book-defined observation rather than an informal glance at a chart.

A 2-1/2-year handwritten backtest is presented as the procedure used to confirm whether a long-horizon trend theory still matched historical price structure.

A second long-used rule that later failed

A historical 200-day moving-average rule on the Dow is cited as another long-used timing procedure that later produced many false signals once market structure changed.

Educational research material, not investment advice. Historical source context does not establish present-day performance.
9 of 29 in the Dow Theory track
19941-11 pp.Next on Dow TheoryMarket life expectancy as a risk filterA usable Risk-reward ratio starts with whether and how far to be long, using trend direction plus the odds that the current move continues versus reverses.
All readings on this track · 29 readings
  1. 1982A bounded-risk entry separates a forecast from a trend
  2. 1984Critiquing reward bias, single-scale charts, and exact-turn forecasts
  3. 1990Constructing dual-average primary-trend confirmation
  4. 1991Two-average confirmation before a primary reversal call
  5. 1991Delayed confirmation is not Dow Theory divergence
  6. 1991Confirmation delay and breadth divergence in a two-average case
  7. 1992Utilities as a rate-regime lead for equities
  8. 1992Critiquing unconfirmed Dow rallies with volume
  9. 1993When Dow Theory signals fail after the decision-makers change
  10. 1994Market life expectancy as a risk filter
  11. 1994Score industrial and transport sync before calling an intermediate-trend signal
  12. 1997A 1995 industrial-average breakout mapped from component trends
  13. 1998Confirm Dow trends with Market breadth and Head and shoulders
  14. 1999Confirming an equity idea with rate, commodity, and index spreads
  15. 2001Why trend, range, and Dow rules need separate tests
  16. 2001Bear-market confirmation via prior correction troughs
  17. 2002Constructing a Dow line before breakout confirmation
  18. 2002Two-average confirmation as a swing-by-swing classroom drill
  19. 2002Withhold the hypothesis until the second average confirms: a 2001 case
  20. 2002A primary-bear case study in cycle speed, Dow theory, and pattern legs
  21. 2003Four index proxies as a bear-regime dashboard
  22. 2004Dual-average confirmation at shared prior highs
  23. 2004Confirmation as the second clock on a trend break
  24. 2004The confirmation-reaction planning window after a joint break
  25. 2005Dow confirmation as a two-average trend test
  26. 2008Related-average confirmation lag after a correction
  27. 2008Intermediate confirmation outranks secular phasing
  28. 2012Align swings to nested energy regimes
  29. 2016From nonconfirmation to a bearish primary trend change
By fieldTrend and channels181 readingsBy year199376 readings
All 29 readings tagged Dow Theory
Also on Dow Theory5 readings
1982A bounded-risk entry separates a forecast from a trend1984Critiquing reward bias, single-scale charts, and exact-turn forecasts1990Constructing dual-average primary-trend confirmation1991Delayed confirmation is not Dow Theory divergence1991Confirmation delay and breadth divergence in a two-average case