Bull and Bear Cycles: Why Bitcoin's 4-Year Rhythm Still Matters in 2026
Every four years, Bitcoin goes through a predictable cycle tied to the halving. Here's how to read the rhythm and position yourself for what comes next.
Uvin Vindula — IAMUVIN
Published 2026-01-16
The Rhythm of Bitcoin Markets
If you've been around Bitcoin long enough, you start to feel it — the pulse of the four-year cycle. It's not magic. It's not astrology. It's economics, supply shocks, and human psychology playing out in a pattern that has repeated with eerie consistency since Bitcoin's inception.
I've been through multiple cycles now, and every time I hear someone say "this time is different," I smile. Because the cycle isn't about identical price action — it's about the underlying mechanics that drive supply and demand. And those mechanics are as alive as ever in 2026.
The Four-Year Halving Cycle
Every 210,000 blocks (roughly every four years), Bitcoin's block reward gets cut in half. This is the most predictable supply shock in any financial market:
| Halving | Date | Block Reward | Cycle Peak (approx) |
|---|---|---|---|
| 1st | Nov 2012 | 50 → 25 BTC | ~$1,100 (Dec 2013) |
| 2nd | Jul 2016 | 25 → 12.5 BTC | ~$20,000 (Dec 2017) |
| 3rd | May 2020 | 12.5 → 6.25 BTC | ~$69,000 (Nov 2021) |
| 4th | Apr 2024 | 6.25 → 3.125 BTC | TBD (we're in it now) |
The pattern? 12-18 months after each halving, Bitcoin has historically reached a new all-time high, followed by an 80%+ correction, then a long accumulation phase. Every single time.
Where Are We Now?
The fourth halving happened in April 2024. By that logic, the cycle peak window is roughly April 2025 to October 2026. As I write this in early 2026, we're right in the heart of what should be the most explosive part of the cycle.
But here's the nuance that most "cycle bros" miss: each cycle is different in magnitude and shape. The first cycle saw a 100x gain from cycle low to peak. The second was about 30x. The third was about 20x. The returns are diminishing as the market cap grows — you can't 100x a trillion-dollar asset the same way you 100x a million-dollar one.
The Bull Phase Anatomy
Bull markets don't go straight up. They unfold in stages:
- Stealth phase: Smart money accumulates while retail is still traumatized from the last bear market. This happened throughout 2023-early 2024.
- Awareness phase: Early adopters buy in, media starts covering Bitcoin again. The ETF approvals in January 2024 marked this transition.
- Mania phase: Mainstream FOMO kicks in. Your taxi driver, your cousin, and your grandmother are all asking about Bitcoin. We're approaching or entering this phase.
- Blow-off top: Parabolic price action, euphoria, "Bitcoin is going to infinity" sentiment. This is where smart money starts selling to dumb money.
The Bear Phase Reality
What goes up must come down — at least in cycles. Bear markets typically last 12-18 months and involve:
- 70-85% drawdown from all-time high
- Capitulation events where even long-term holders sell
- Media declaring "Bitcoin is dead" (for the 400th time)
- Industry consolidation — weak companies fold, strong ones build
The bear market is where wealth is actually built. If you can accumulate during the despair phase, you're buying at a massive discount to the next cycle's peak.
Is the Cycle Breaking Down?
Some analysts argue that institutional adoption via ETFs has fundamentally changed Bitcoin's cycle dynamics. The argument: constant institutional inflows create a "floor" that prevents the deep 80%+ corrections of previous cycles.
I'm partially sympathetic to this view. It's true that BlackRock, Fidelity, and sovereign wealth funds provide more sustained demand than retail speculators. But I don't think cycles are dead. Human psychology doesn't change. Greed and fear will always create oscillations around fair value.
What I do expect is that the cycles become less extreme — maybe 50-60% corrections instead of 80% — and that the duration shifts slightly. But the fundamental rhythm of halving-induced supply shocks followed by speculative excess followed by corrections? That's not going anywhere.
How Sri Lankans Should Play the Cycle
Here's my honest advice for people in Sri Lanka and other developing countries:
- Don't try to time the exact top or bottom. Nobody can. I've seen people lose more money trying to trade cycles than just holding through them.
- DCA heavily during bear markets. When everyone is crying, you should be buying. Set up automatic purchases if you can.
- Take some profits during euphoria. When your neighbor who laughed at Bitcoin is suddenly asking you how to buy, it's time to take some chips off the table.
- Never sell everything. The cycle after this one will be higher. And the one after that. Bitcoin's long-term trajectory is up and to the right.
The four-year cycle is your superpower as a long-term investor. Use it wisely. Track the cycle with our tools and deepen your understanding at our learning center.

By Uvin Vindula — IAMUVIN
Sri Lanka's leading Bitcoin educator. Author of "The Rise of Bitcoin".
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