Introducing the JK Misery Index - Part II

Jay Kaeppel
2026-05-22

Key points:

  • Part I detailed how the JK Misery Index (JMI) is calculated and some general performance stats regarding S&P 500 performance
  • In Part II, we will take a more systematic approach and review stock market performance during favorable and unfavorable periods as designated by the JK Misery Index
  • While we will be analyzing JMI as if it were a standalone trading system, note that we do not, in practice, treat it as such, and continue to prefer a weight of the evidence approach to market analysis

A quick review

For full details on the construction of the JK Misery Index (JMI), please review Part I. In a nutshell, however, the model:

  • Combines mortgage rates, inflation, and unemployment
  • Compares the raw calculated value to a moving average (14-month exponential)
  • Observes the gap between the raw value and the moving average and reports that as the indicator value
  • Readings below 35 are considered "favorable" for stocks
  • Readings above 35 are considered "unfavorable" for stocks

Taking a systematic approach</

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