Bitcoin’s 30-day price volatility falls to 6-month low

Bitcoin is approaching the end of May with an unusually quiet tape: its 30-day price volatility just recorded its lowest level since November 2024, even as spot price trades just under its record high of $111,000. This rare combination of market calm and record valuations has created a setup that has historically preceded major price moves, placing the market at a potential inflection point.

At the beginning of 2025, Bitcoin’s 30-day price volatility stood at 924.51, with the coin priced at $94,394. The volatility index, which tracks the average magnitude of daily price changes over a rolling 30-day window, steadily declined through February, falling to 705.61 on Feb. 23 as Bitcoin inched up to $96,299.

The calm ended abruptly in March. On Mar. 20, Bitcoin dropped to $84,175 and volatility surged to its year-to-date peak of 1,151.30. The sharp uptick reflected a $12,000 drop from February’s high and marked the most volatile period of the year.

But the spike was short-lived. Over the next eight weeks, volatility retreated while Bitcoin began a slow, steady climb. By Apr. 5, volatility had dropped to 759.80, even though the price remained subdued at $83,516.

A more pronounced shift came in early May. On May 8, Bitcoin traded at $103,285 while realized volatility fell to 641.19. This compression continued through the following week, reaching a local minimum of 490.33 on May 17, with Bitcoin holding above $103,000.

This 490.33 reading marks the lowest level since November 2024, indicating a prolonged period of stability. It’s also notable that this occurred just days before Bitcoin set a new ATH of $111,000 on May 22. The rise in price, combined with falling volatility, created the highest price-to-volatility ratio of the year.

By May 26, 30-day volatility climbed to 547.60, showing that daily trading ranges had widened slightly as the market digested the new high. Bitcoin’s price stood at $109,460, a modest and expected pullback from the peak but well within the range of normal price action.

The broader implication is that Bitcoin has spent most of 2025 in a state of steady upward movement while becoming less volatile. This is a powerful signal for institutions and longer-term capital, as it suggests an efficient price discovery environment with minimal noise.

Volatility compression of this kind typically makes options cheaper, reduces the cost of hedging, and encourages positioning from volatility sellers, especially during flat price action. But historically, these quiet periods don’t last long.

A retrospective analysis of realized volatility since 2020 shows that when the 30-day volatility drops below 500, it’s often followed by major directional moves.

Out of six such instances since January 2020, four were followed by a spot move of more than $10,000 within 30 days. The remaining two came close, with price swings of around $9,000. In each case, the break from volatility compression ushered in a new wave of price discovery, either to the upside or downside.

The current market state provides support for a breakout. However, if Bitcoin breaches either side of its current band, especially above $112,000 or below $100,000, the speed and scale of daily moves will likely accelerate, forcing a repricing of risk.

The current volatility regime also aligns with a narrative of institutional stability. The sustained inflows into spot Bitcoin ETFs throughout April and May have likely played a role in suppressing day-to-day swings. ETF-driven demand introduces buy pressure that is regular and allocative rather than reactive, which helps keep the tape smooth. As this structural bid builds, it dampens short-term fluctuations, especially in the absence of macroeconomic shocks.

But that same smoothness also brings the risk of complacency. With realized volatility at depressed levels and options cheap, a sharp break, whether triggered by reversing ETF flows, macro policy shifts, or geopolitical surprises, would introduce asymmetric risk for unhedged participants.

And with Bitcoin now trading within a narrow range under its all-time high, the ingredients for a volatility squeeze are already in place.

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