U.S. household portfolios hit a record 46.71 percent allocation to corporate equities at the close of 2025, up from 43.99 percent a year prior, according to Federal Reserve data cited by Grayscale.
The spike underscores what Zach Pandl, Grayscale's head of research, calls an "increasingly crowded stock trade." In a Sept. 1 assessment, Pandl argued that crypto can diversify concentrated portfolios without displacing core equity holdings—particularly as elevated stock valuations leave minimal room for earnings disappointments.
Grayscale cited Yardeni Research data showing long-term S&P 500 earnings-growth estimates at above 25 percent as of Aug. 28, well above the historical 10 to 15 percent range. Pandl stated: "With household equity exposure at record highs and stock valuations pricing in exceptional growth, crypto's post-bear-market reset may offer a differentiated opportunity with an attractive entry point."
The case hinges on Bitcoin's decoupling from equities. Grayscale correlation data published Aug. 27 showed Bitcoin's 90-day Nasdaq 100 correlation collapsed from over 60 percent to approximately 33 percent. Simultaneously, Bitcoin's 90-day gold correlation climbed from near zero to above 50 percent—a structural shift signaling Bitcoin's emergence as a distinct asset class rather than a risk-on equity proxy.
Blackrock has explored limited Bitcoin exposure as a diversification tool, suggesting a 1 to 2 percent allocation could fit some long-term portfolios, though cautioning that Bitcoin's volatility could amplify total portfolio risk at larger positions.
The diversification thesis carries caveats. Bitcoin has historically shown larger price swings than broad equity indexes and has not consistently acted as a safe haven during financial stress. Correlation relationships fluctuate across market cycles, complicating Bitcoin's role alongside stocks, gold, bonds, and real estate.
Grayscale's argument therefore rests on two specific conditions: record equity concentration in household portfolios and digital assets emerging from depressed valuations after a prolonged downturn that reduced leverage and bullish positioning across the sector.
