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Bank of America

May 29, 2026

The Flow Show: Post-Bubble - Long Humiliation, Short Hubris

Weekly UpdateEquitiesRates Govt BondsRates CreditInformation TechnologyEnergy

BofA's Bull & Bear Indicator has hit 8.5, a strong contrarian sell signal, amid extreme market concentration and bullish fund manager positioning. The report recommends a 'post-bubble' rotation into bonds and defensive sectors as the speculative peak arrives.

Key Takeaways

  • 1.The BofA Bull & Bear Indicator has risen to 8.5, signaling a contrarian 'Sell' due to extreme bullish positioning.
  • 2.Equity market concentration is at extreme levels, with only 4% of S&P 500 stocks making new highs, a level last seen at the Mar '00 dotcom peak.
  • 3.Historical post-bubble strategy involves going long on government bonds and defensive sectors that underperformed during the mania.

Table of Contents

  • Scores on the Doors
  • Zeitgeist
  • The Price is Right
  • Tale of the Tape
  • The Biggest Picture
  • Weekly Flows
  • Flows to Know
  • BofA Bull & Bear Indicator
  • Dates for the Diary
  • Post-bubble roadmap
  • Asset Class Flows
  • Fixed Income Flows
  • Equity Flows
  • BofA private client flows & allocations
  • The Asset Class Quilt of Total Returns
  • BofA Rules & Tools
  • Acronyms
  • Disclosures

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Authors

Michael HartnettAnya ShelekhinMyung-jee JungJessica Guo

Securities

SPXNasdaqNikkei 225TLTJAAABTC

Themes

Post-Bubble RoadmapMarket Concentration & Bubble MechanicsContrarian Sell Signals

Regions

GlobalNorth AmericaEuropeUnited StatesChinaJapan