Grayscale Says Bitcoin Volatility Fell to 43%, Into S&P 500 Territory

Grayscale published research showing Bitcoin's one-year realized volatility fell to 43%, from an average of 64% over the past 10 years and 81% five years ago. Zach Pandl, Head of Research at Grayscale, wrote that Bitcoin's realized volatility over the past year fell within the distribution of S&P 500 constituents and is now lower than that of 19% of them.

In Grayscale's view, Bitcoin's volatility is "no longer in a separate category of risk." The firm tied the narrower price swings to deeper liquidity, broader institutional participation and more regulated access venues as Bitcoin matured.

From 81% to 43%

Grayscale put Bitcoin's one-year realized volatility at 43%. That compares with an average of 64% over the past 10 years and 81% five years ago, a sharp narrowing of Bitcoin's price swings in Grayscale's data.

Grayscale credited the market that has grown up around Bitcoin:

"As the asset has matured, with deeper liquidity, broader institutional participation, and more regulated access venues, its price swings have narrowed considerably from the extremes of its early years."

A separate measure points the same way. K33 Research data had 2025 as Bitcoin's least volatile year on record, with an average deviation of daily returns of 2.24% against 2.30% in 2023. That is a different measure from Grayscale's annualized realized volatility.

What Grayscale Did Not Claim

Grayscale kept its own caveats in the note. It said Bitcoin's volatility today is still above that of most stocks in its sample, and that one year of data cannot establish Bitcoin's risk across market cycles.

So Bitcoin's realized volatility now sits within the distribution of S&P 500 constituents, lower than that of 19% of them, while Bitcoin's volatility is still above that of most stocks in Grayscale's sample. The "Bitcoin is too volatile" criticism is weaker than it was, because Bitcoin is now about as volatile as some major US-listed stocks.

Why It Matters

Grayscale's note shows Bitcoin's volatility fell to 43% as deeper liquidity and broader institutional participation arrived, so the "Bitcoin is too volatile" criticism is weaker than it was. We think stock comparisons are the wrong bar, though, because Bitcoin is meant to become widely accepted money, and for that role Bitcoin's volatility has to be far lower than it is now. Savers priced in fiat that loses value to inflation do not need another volatile stock, they need hard money whose volatility keeps falling as liquidity deepens. That makes market liquidity one of the most important metrics to keep tracking, because deeper liquidity is what turns Bitcoin from a trade into money.