比特币整体波动性下降，但极端价格波动仍超2018年水平

Bitcoin's overall volatility fell, but extreme price volatility exceeded 2018 levels

Although violent and abnormal price fluctuations occurred more frequently than in the early bull market cycle of Bitcoin, indicators of daily price changes showed a downward trend. Bitcoin's volatility characteristics are changing and at first glance seem contradictory. For a long time, the standard measure of daily price changes has gradually declined. However, extreme and extraordinary price fluctuations occur more frequently today than during the 2018 period.

Both CoinDesk and CryptoBriefing reported this divergence, describing a market that is on average calm but remains vulnerable to sudden shocks. These two trends do not necessarily conflict. A market can experience more severe tail events while the underlying volatility is low.

Measurement of Volatility and Market Maturity

Volatility is often measured using statistical tools that capture the average magnitude of price changes over a given period of time. When this average falls, it often marks an increase in market maturity. In recent years, Bitcoin has attracted more institutional participants. Larger pools of funds, deeper order books and the emergence of regulated products are all seen as factors that may curb regular price fluctuations.

Extreme price fluctuations are another phenomenon. These are rare but violent movements that occur during moments of stress or unexpected emergencies. The increase in frequency compared to 2018 suggests that while day-to-day transactions have smoothed out, markets still feel vulnerable to sudden structural dislocations.

Structural changes and macro linkages

Since 2018, several structural changes have helped explain this pattern. Bitcoin is now traded jointly with a vast derivatives ecosystem, leveraged products and automated trading strategies. Once shocks begin, these tools can amplify price movements, even if they do not cause broader fluctuations in daily price actions.

The growth of exchange-traded funds (ETFs) and other regulated investment vehicles has also changed the way capital flows into and out of Bitcoin. These products could introduce new feedback loops related to broader financial markets, including stock indices and interest rate expectations. Macroeconomic surprises that have occurred elsewhere can now be transmitted to Bitcoin faster than in 2018, when the asset was traded in a more isolated environment.

Market structure analysts often distinguish between realized volatility (reviewing actual price changes) and implied volatility (reflecting options market expectations for the future). The reported decline appears to be related to realized volatility trends in a longer perspective. The increase in extreme volatility points to the "fat-tailed" character of the distribution of results, a pattern familiar to researchers studying mature financial markets versus newer, less liquid markets.

Impact on the market

For traders and risk managers, the data suggests the need for a more nuanced positioning approach than just relying on headline volatility numbers. Lower average volatility may encourage larger position sizes or looser stop-loss settings. But the increased frequency of extreme volatility means that even in calm times, tail risk protection (such as option hedging) remains relevant.

Institutional investors who evaluate Bitcoin as part of their portfolio may weigh these two trends together. A market that is generally stable but is occasionally susceptible to severe dislocations presents different risk characteristics than a uniformly volatile market. This distinction is critical to how funds size and manage retracement exposure.

The combination of declining underlying volatility and more frequent extreme volatility paints a market picture that is maturing but still unpredictable. Investors tracking Bitcoin's risk characteristics should consider these two indicators rather than relying on just a single measure of volatility.

FAQs

What does it mean for Bitcoin's volatility to fall but extreme volatility to become more frequent?

This means that daily price changes are smaller on average, and rare, severe price shocks occur more frequently today than in 2018.

Why does Bitcoin's average volatility decline over time?

Factors commonly cited include higher institutional engagement, deeper liquidity and the growth of regulated investment vehicles, which help make day-to-day transactions smoother.

Although overall volatility is low, why are extreme price fluctuations more frequent?

The increased use of leverage, derivatives and automated trading strategies may amplify sudden moves, even as regular price movements become more stable.

How should investors comprehensively interpret these two trends?

This suggests that the market is generally more stable, but there is still significant tail risk, which may require continued use of risk management tools during periods of calm.