The Four-Year Crypto Cycle
The empirical history of Bitcoin's roughly four-year boom-bust cycles, the halving-driven structural explanation, and the debate about whether the cycle pattern persists in the institutional era.
What the Cycle Pattern Is
Bitcoin (and crypto broadly) has shown a roughly four-year pattern of boom-bust cycles since its inception. Strong bull markets in 2012-2013, 2016-2017, 2020-2021, and 2023-2024. Major bear markets followed each peak. Each cycle's peak was substantially higher than the previous; each bear market drawdown was substantial (60-85% from peak). The four-year periodicity has been remarkably consistent over Bitcoin's history. Many investors structure their strategies around this pattern.
The Halving-Driven Explanation
Bitcoin's supply schedule is hardcoded: every ~four years, the block reward (new Bitcoin issued) halves. November 2012, July 2016, May 2020, April 2024. Each halving cuts new Bitcoin supply in half. The theory: reduced supply, sustained demand, prices rise. Historically, bull markets have peaked 12-18 months after each halving. This pattern was so consistent that 'wait for the halving' became a meme. Whether the cycle is causally driven by halvings or is correlated with other macro factors remains debated, but the empirical correlation is strong.
The Bear Markets
Each bull cycle was followed by a bear market with similar shape: peak → ~85% drawdown over 12-18 months → bottom → slow recovery → next cycle's bull market. 2018 bear (-83% from $20K to $3K). 2022 bear (-77% from $69K to $15.5K). The pattern was so consistent that '85% drawdown' became a meme. Investors who survived bear markets without selling captured the subsequent cycle's gains; those who didn't, didn't. The behavioural test of crypto investing is bear market survival.
- Roughly four-year boom-bust cycles since Bitcoin's inception
- Halving (every ~4 years) is the structural explanation
- Bull peaks 12-18 months post-halving historically
- Bear markets follow with ~85% drawdowns
Key Takeaways
- Four-year cycles have been remarkably consistent historically
- Halvings provide structural explanation for the periodicity
- Bull peaks have been progressively higher; bear drawdowns similarly deep
- Bear market survival is the behavioural test of crypto investing
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References & further reading
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