The Bitcoin Four Year Cycle, Explained (2026)
Bitcoin Keeps Repeating the Same Pattern
Bitcoin has done the same thing four times in a row. It bottoms out in quiet, bored markets. It cuts the supply of new coins in half. It rallies to a new all-time high. Then it crashes, and everyone who bought at the top swears they will never touch it again.
Four cycles. Four bottoms, four halvings, four peaks, four crashes. The details change. The structure does not. That is the Bitcoin four year cycle, and understanding it is the single most useful thing you can learn about this market.
Why Does Bitcoin Move in Four Year Cycles?
Every 210,000 blocks (roughly every four years), Bitcoin’s code cuts the reward that miners earn for processing transactions in half. This is the halving. In 2012, the reward dropped from 50 BTC to 25. In 2016, from 25 to 12.5. In 2020, from 12.5 to 6.25. In April 2024, from 6.25 to 3.125.
Think of it like this. Imagine a gold mine that suddenly produces half as much gold overnight, but the number of people who want gold stays the same or grows. The price adjusts. Not instantly, but reliably.
That supply squeeze is the engine. Every halving has been followed by a massive run to a new record high within about 12 to 18 months. The timing is not exact, but it has held across four completely different market environments.
What Each Cycle Actually Looked Like
Cycle 1 (2012 halving). Bitcoin went from about $12 at the halving to $1,127 at the peak in November 2013. Then it crashed roughly 85%.
Cycle 2 (2016 halving). Bitcoin went from about $650 at the halving to $19,665 at the peak in December 2017. Then it crashed roughly 84%.
Cycle 3 (2020 halving). Bitcoin went from about $8,700 at the halving to $69,044 at the peak in November 2021. Then it crashed roughly 77%.
Cycle 4 (2024 halving). Bitcoin went from about $63,000 at the halving to $126,080 at the peak in October 2025. It is now about 34% below that peak, sitting near $83,000.
Two patterns jump out. First, the rallies keep getting smaller. The first cycle delivered roughly 9,000%. The fourth delivered about 100%. Second, the crashes after each peak have been getting shallower. 85%, 84%, 77%, and the current one is at 34% so far. You can see how every Bitcoin crash compares in our full history.
Where Are We in the Cycle Right Now?
We are 368 days past the October 2025 peak and roughly 902 days past the April 2024 halving. Bitcoin is trading near $83,000. The Fear and Greed Index reads 59 (Greed), which means the crowd is not panicking, but they are not euphoric either.
If the four year pattern holds its usual shape, the current cool-down phase still has room to run before the market bottoms and begins building toward the next halving in early 2028. Every prior cycle bottomed roughly 12 to 14 months after the peak, which would place that window somewhere in late 2026.
That lines up with what on-chain data suggests too. For a deeper look at what happens after every Bitcoin halving, we broke down the full timeline.
Is the Four Year Cycle Breaking?
People ask this every cycle. The honest answer is that the pattern is clearly compressing. The rallies are smaller. The crashes are shallower. The swings are getting tighter as the market matures, ETFs bring in institutional money, and the supply of new coins shrinks.
Does that mean the cycle is “breaking”? Not really. It means Bitcoin is growing up. A younger, wilder market swings 85% down. A bigger, more liquid market swings 34% down (so far). The rhythm is the same. The volume knob is turning down.
The cycle could absolutely surprise everyone. It could crash harder from here or bottom sooner than expected. But betting against a pattern that has repeated four times in a row, across completely different macro backdrops, with a clear mechanical driver (the halving), requires a strong reason. “This time is different” has been wrong every time it has been said about Bitcoin.
What the Four Year Cycle Means for You
The cycle does not tell you the exact day to buy or the exact price to sell. Nobody has that. What it gives you is a map of the terrain. You know roughly where the danger zones are (right after the peak, when everyone is still celebrating). You know roughly where the opportunity zones are (deep into the crash, when everyone has given up).
The people who use cycles well are not the ones who predict the exact top or bottom. They are the ones who zoom out far enough to recognize the season they are in. Winter feels permanent when you are in it. It never is.
Common questions
What is the Bitcoin four year cycle?
It is the repeating pattern of bottom, halving, rally to a new all-time high, and crash that Bitcoin has followed four times since 2012. The halving, which cuts new coin supply in half every four years, is the mechanical driver.
Why does Bitcoin move in four year cycles?
Every 210,000 blocks (roughly four years), the reward miners earn is cut in half. This supply squeeze has preceded a major rally within 12 to 18 months in every cycle so far.
Where are we in the Bitcoin cycle right now?
As of October 2026, Bitcoin is about 368 days past its October 2025 peak and roughly 34% below the all-time high of $126,080. The next halving is expected in early 2028.
Is the Bitcoin four year cycle still valid in 2026?
The pattern has held four times in a row. The rallies and crashes are getting smaller as the market matures, but the basic rhythm of halving followed by rally followed by crash has not broken.
How long do Bitcoin bear markets last after each cycle peak?
Past bear markets have lasted roughly 12 to 14 months from the peak to the bottom. The crashes after each peak have also been getting shallower, from 85% down to 34% so far in the current cycle.
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Education, not financial advice. Trading involves real risk.