Crypto Market Cycles — The 4-Year Pattern
Crypto has historically moved in a roughly 4-year rhythm tied to the Bitcoin halving: accumulation, bull run, peak, crash. What it is, and why it may not repeat.
The 4-year rhythm
Bitcoin — and crypto broadly — has historically moved in a roughly four-year pattern anchored to the halving:
- Year 0: halving (block reward cut in half)
- Year 1: quiet, often still recovering
- Year 2: a bull run builds
- Year 3: the run peaks
- Year 4: a crash, and the next cycle begins
Past cycles
Each cycle has followed a similar shape, with the peak-to-trough swings enormous — for example the 2017 run to ~20k and 2018 crash to ~3k, or the 2021 peak near 65k and 2022 low near 16k. The magnitude of the gains has tended to shrink cycle over cycle.
Why the halving matters
The halving cuts the rate of new supply in half. With fewer new coins reaching the market, prices have historically firmed up when demand held or grew — usually 6–12 months later, not on the day itself.
Using the idea (carefully)
- After a crash: prices are low; some investors accumulate gradually with DCA rather than going all-in.
- During a run: many take profit in parts instead of holding everything to the top.
- Near a peak: discipline matters most — locking in gains beats round-tripping them.
The cycle can change
The pattern can shift or break. Spot Bitcoin ETFs (2024), broader adoption, and macro events (rate shocks, inflation) all change the dynamics. Treat the 4-year cycle as historical context, not a schedule you can trade blindly.
fastbot can run your DCA automatically across the whole cycle, so accumulation stays consistent regardless of the phase. Set up automated DCA.