Bitcoin Halving History: What Happened After Every Single One
Every four years, the number of new Bitcoin created per block gets cut in half. It’s called “the halving,” and it’s the single most predictable supply shock in any financial asset. No committee votes on it. No central bank decides. It’s written in code, enforced by math, and has happened four times so far.
Every time, the same pattern followed: price went up. A lot.
The Four Halvings
| Halving | Date | Block | Reward After | Price at Halving |
|---|---|---|---|---|
| 1st | November 28, 2012 | 210,000 | 25 BTC | ~$12 |
| 2nd | July 9, 2016 | 420,000 | 12.5 BTC | ~$650 |
| 3rd | May 11, 2020 | 630,000 | 6.25 BTC | ~$8,600 |
| 4th | April 20, 2024 | 840,000 | 3.125 BTC | ~$65,000 |
The next halving is expected around early 2028 at block 1,050,000, when the reward will drop to 1.5625 BTC per block.
Post-Halving Price Chart
This chart overlays all four post-halving periods. Each line shows the price movement for 18 months after the halving. Toggle between percentage return and USD price.
What Happened After Each Halving
2012 halving → $12 to $1,127 (~9,300% in 12 months) Bitcoin was barely known. The halving cut the reward from 50 to 25 BTC per block. Within a year, Bitcoin broke $1,000 for the first time. The cycle peaked in November 2013, roughly 12 months after the halving.
2016 halving → $650 to $19,783 (~2,900% in 17.5 months) By 2016, Bitcoin had survived its first major crash cycle and was gaining mainstream attention. The halving cut rewards from 25 to 12.5 BTC. The cycle peaked in December 2017 at nearly $20,000, driven by retail mania and the first ICO boom.
2020 halving → $8,600 to $69,000 (~700% in 18 months) The COVID halving. BTC was at $8,600 when the reward dropped from 12.5 to 6.25 BTC. Institutional money arrived: MicroStrategy (now Strategy), Tesla, and eventually the Bitcoin futures ETFs. The cycle peaked in November 2021 at ~$69,000.
2024 halving → $65,000, peaked at ~$124,750 (peak return
The Diminishing Returns Pattern
Each cycle produces smaller percentage gains than the last. This makes sense: as Bitcoin’s market cap grows, it takes more capital to move the price.
| Cycle | Return to Peak | Time to Peak |
|---|---|---|
| 2012 | ~9,300% | ~12 months |
| 2016 | ~2,900% | ~17.5 months |
| 2020 | ~700% | ~18 months |
| 2024 | ~92%* | ~17.5 months* |
The percentages are shrinking, but the dollar gains per BTC at the peak are still enormous. A 92% gain on a ~$65,000 entry is roughly $60,000 per Bitcoin. Diminishing returns in percentage terms, but life-changing returns in absolute terms, at least at the top of the cycle.
Why Does This Happen?
The halving cuts new Bitcoin supply in half overnight. Before the 2024 halving, miners produced ~900 BTC per day. After: ~450 BTC per day. If demand stays constant (or grows), the same buying pressure chases fewer new coins. Basic supply and demand.
It’s not just theory. Currently, over 95% of all 21 million Bitcoin have already been mined. The remaining ~5% will be released slowly over the next century+. Each halving makes the supply squeeze tighter.
Institutional demand adds to the pressure. Spot Bitcoin ETFs now absorb significant daily BTC volume. Strategy (formerly MicroStrategy) is the largest corporate Bitcoin holder with a treasury that keeps growing. When new supply gets cut in half and institutional demand keeps growing, prices tend to rise.
The Time to Peak Pattern
One of the most consistent patterns: the cycle peak tends to arrive 12-18 months after the halving. All four cycles have followed this pattern. Whether this holds for future cycles is unknown, but it’s been remarkably consistent across very different market conditions.
What About the Next Halving?
The 5th halving is expected around early 2028 at block 1,050,000. The reward will drop from 3.125 to 1.5625 BTC per block. At that point, daily new supply will be just ~225 BTC. For context, a single large institutional buyer could absorb that entire daily supply.
The exact date depends on Bitcoin’s average block time (targeted at 10 minutes, but varies with hashrate changes). Estimates converge on Q1-Q2 2028.
The Bottom Line
Four halvings. Four supply shocks. Four price cycles. The percentages are shrinking, but the pattern has held across completely different market conditions: early adopter mania (2012), retail FOMO (2016), institutional adoption (2020), and ETF-driven flows (2024).
Past patterns don’t guarantee future results. But the supply schedule is the one thing about Bitcoin that is truly predictable. The next halving is coming. The code says so.
This is not financial advice. Past performance does not guarantee future results.