vs Yesterday
−0.8 pts
Vol still drifting down — calm market continues.
Bitcoin's Calmness, Annualized
BTC 30-Day Volatility
32.5
%
-0.8 pts
vs. yesterday
Past 12 months28.5% – 55.0%
vs Last Year-12.5
5-Yr Avg55.0%
RegimeCalm
BTC realized vol at 32.5% — calm by historical standards (5-yr avg: 55%). Bitcoin moving an average of ±1.7%/day over the past month. The asset class is maturing, but compressed vol always eventually releases.
Historical trend
Daily 30-day rolling realized vol, annualized.
Source: CoinGecko BTC daily price · 30-day rolling SD × √365
The long view
From 168% panic in COVID to 12.5% in 2023's calm — the full range of BTC's mood.
Peak 168% · Mar 2020
Trough 12.5% · Aug 2023
Today 32.5%
How today stacks up
vs Last Year
−12.5 pts
Much calmer than May 2025's 45% reading.
5-Year Average
55.0%
Today is 22.5 pts below the long-run mean.
vs S&P 500
~2.2×
BTC's calm is still 2× equity vol.
Use this number
Tools for sizing crypto positions.
About Bitcoin 30-Day Volatility
This is the annualized 30-day rolling realized volatility of Bitcoin's daily returns. We compute the standard deviation of the past 30 daily log returns, then annualize by multiplying by √365. Today's 32.5% means BTC has been moving about ±1.7% per day over the past month (32.5% ÷ √365 ≈ 1.7%). Lower numbers mean calmer markets; higher numbers mean wild swings.
Why volatility matters for crypto
Bitcoin's structural volatility is roughly 3–5× that of equities. The S&P 500's annualized vol typically runs 12–20%; BTC's typically runs 40–80%. Today's reading of 32.5% is on the low end of BTC's historical range — markets have been unusually calm. This matters because position sizing should scale with volatility: a 5% BTC allocation at 70% vol has the same risk contribution as roughly 18% at 20% vol.
Reading today's number
BTC vol peaked at 168% in March 2020 (COVID crash) and bottomed at 12.5% in August 2023 (post-bear consolidation). Today's 32.5% is meaningfully below the 5-year average of 55% and trending down. Sub-30% vol historically precedes either continued grinding rallies or sudden regime breaks — calm markets contain energy that eventually releases.
Related trackers
Other live numbers that move with — or against — this one.
Frequently asked
What this number means, and what it doesn't.
Take the daily log return (ln(price_today / price_yesterday)) for the past 30 trading days. Compute the standard deviation of those 30 numbers. Multiply by √365 to annualize (crypto trades 365 days/year, unlike equities at 252). Express as a percentage.
S&P 500 typical annualized vol: 12–20%. Single tech stocks (Tesla, Nvidia): 30–55%. Bitcoin: 40–80% historically. Smaller altcoins: 80–150%. So BTC sits roughly between large-cap tech stocks and "exotic" emerging-market currencies.
Neither directly — it just reflects current price stability. Low vol historically precedes both melt-up rallies (calm continuation) and sharp regime breaks (compressed energy releases). The 2024 calm broke into the AI-rally surge; the 2017 calm broke into the parabolic top. Watch for trend change as much as vol level itself.
This page tracks realized vol — what actually happened. Implied vol comes from options prices and represents the market's expectation of future vol. The two often diverge: realized can be 40% while implied is 60% (options market expects more turbulence ahead). Spreads between them are tradeable.
Methodology
Source
Pulled from CoinGecko · derived and cached on the EvvyTools server.
Update schedule
Refreshed automatically by our cron whenever the upstream source publishes a new value. Historical values are not revised after publication.
How we compute
Display value is the raw published number, unrounded. Comparison stats use the closest available reference date. We never edit the underlying data.