BlackRock updates its Bitcoin outlook after historic selloff

BlackRock has reassessed its stance on Bitcoin following an unprecedented sell-off, questioning whether the foundational assumptions for institutional adoption remain valid. The investment firm's updated report, titled "Re-Underwriting Bitcoin: Still a Portfolio Diversifier," comes as the cryptocurrency trades near $64,700, significantly lower than its peak in October 2025.

Rather than dismissing the decline as a breakdown in Bitcoin's investment thesis, BlackRock analyzed the asset's behavior during the sell-off and considered its implications for portfolio construction. According to BlackRock, much of the 50% drop from its October 2025 high was driven by crypto-market deleveraging and shifting investor flows rather than a fundamental weakening in Bitcoin's long-term prospects.

Bitcoin reached an all-time high of over $126,000 in October 2025 before a sharp deleveraging event later that month triggered a prolonged downturn. As of Tuesday, Bitcoin was trading around $64,779, down approximately 26% year-to-date and 49% from its peak.

The sell-off highlighted Bitcoin's dual nature: it can move alongside risk assets when investors are deleveraging but behaves differently during periods of geopolitical stress. BlackRock argued that heightened correlations with traditional markets have historically been episodic rather than structural.

The firm's updated 10-year analysis supports maintaining a relatively small Bitcoin exposure. A modest 1–2% allocation to Bitcoin could have improved risk-adjusted returns in a traditional 60/40 portfolio, according to BlackRock. This conclusion builds on their September 2025 research, which argued that Bitcoin does not fit neatly into traditional risk-on or risk-off frameworks due to its unique return drivers.

BlackRock emphasized the importance of Bitcoin's changing correlations and portfolio sizing following the selloff. The firm's direct exposure to growing institutional demand through its iShares Bitcoin Trust ETF (IBIT) further underscores the relevance of its updated analysis. With over $48 billion in net assets as of Aug. 17, IBIT has experienced a 26.5% year-to-date decline.

For financial advisers and institutional investors, BlackRock's analysis shifts the focus from Bitcoin's volatility to whether a small allocation can enhance portfolio outcomes despite that volatility. The firm maintains that a measured Bitcoin allocation can serve as a long-term strategic diversifier.