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The Market Ear

May 21, 2026

Short Term Dopamine Hit

Market ReportEquitiesMacro Economic IndicatorsInformation Technology

The current rally in momentum is likely a short-term 'dopamine hit' as historical data suggests factor unwinds last for several weeks. Because momentum is currently tied to the AI trade, its volatility threatens broader market returns.

Key Takeaways

  • 1.Momentum unwinds historically last 6-7 weeks (34 business days) with the long leg declining approximately 21% on average.
  • 2.Momentum factor exposures are extremely elevated, currently sitting at the 95th percentile according to MS Prime Brokerage.
  • 3.The momentum trade is now fundamentally synonymous with the AI trade and, by extension, the broader market index performance.

Table of Contents

  • A short-term dopamine hit
  • Positioning
  • More unwind potential
  • Digestion needed
  • 2022 playbook
  • No longer just a niche factor
  • Not a good sign for the overall market
  • Two best friends
  • "Stretched and reversing"

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