Equity

Re-Underwriting Bitcoin: Still a Portfolio Diversifier

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Aug 17, 2026|ByRobert Mitchnick

KEY TAKEAWAYS

  • Bitcoin has pulled back roughly 50% from its October 2025 highs. We view the sell-off as largely driven by crypto-native deleveraging and shifting investor flows rather than a fundamental change in bitcoin’s long-term investment case.
  • Bitcoin can exhibit a “dual personality”: at times trading alongside risk assets during periods of market deleveraging, while at others serving as a potential hedge during geopolitical disruption. We believe these periods of elevated risk correlation have been episodic rather than structural.
  • Despite its volatility, bitcoin has maintained distinctive portfolio characteristics over longer horizons, including low correlation to traditional risk assets and positively skewed returns. Its role as an emerging global monetary alternative may also offer investors a potential hedge against ongoing fiat debasement amid rising government debt and persistent fiscal deficits.
  • Our updated 10-year historical analysis indicates that a modest 1–2% allocation to bitcoin would have improved risk-adjusted returns in a traditional 60/40 portfolio. We believe a measured allocation can continue to serve as a potential strategic diversifier for long-term investors.
Robbie Mitchnick
Head of BlackRock’s Digital Assets Business
Will Su
Head of Digital Assets Research, BlackRock

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