What is a Bitcoin Halving?
Every 210,000 blocks (approximately every 4 years), the reward that Bitcoin miners receive for validating transactions is cut in half. This is programmed into Bitcoin's code and cannot be changed. It's one of Bitcoin's core monetary policy features.
The halvings reduce the rate of new Bitcoin creation. Starting at 50 BTC per block in 2009, the reward has been cut to 25, then 12.5, then 6.25, and now 3.125 BTC per block. Eventually, around 2140, no new Bitcoin will be created.
Halving 1 - November 28, 2012
Block reward: 50 BTC → 25 BTC
Bitcoin price at halving: ~$12
Price 12 months later: ~$1,100 (+9,067%)
The first halving occurred when Bitcoin was still essentially unknown. The price barely moved on halving day itself. But over the following 12 months, Bitcoin went from $12 to $1,100 in an explosive first bull run. The pattern was established: halving, then bull market.
Halving 2 - July 9, 2016
Block reward: 25 BTC → 12.5 BTC
Bitcoin price at halving: ~$650
Price 18 months later: ~$19,783 (+2,943%)
The second halving at $650 was preceded by a gradual run-up. The actual halving day saw little price movement. The subsequent bull market took 18 months to peak - longer than the first cycle - as Bitcoin had grown and more capital was required to move prices.
Those who bought Bitcoin on halving day 2016 at $650 and held to the December 2017 peak saw a nearly 30x return.
Halving 3 - May 11, 2020
Block reward: 12.5 BTC → 6.25 BTC
Bitcoin price at halving: ~$8,600
Price 18 months later: ~$65,000 (+655%)
The third halving came during the COVID recovery. The price run-up preceding it was interrupted by the March 2020 crash. Post-halving, Bitcoin's bull market was extraordinary - driven by institutional adoption (MicroStrategy, Tesla), El Salvador's legal tender decision, and the NFT boom on other chains driving interest in crypto broadly.
From halving day 2020 to November 2021 peak: a 7.5x return. Calculate your halving 2020 return.
Halving 4 - April 19, 2024
Block reward: 6.25 BTC → 3.125 BTC
Bitcoin price at halving: ~$64,854
Post-halving trajectory: Still playing out
The fourth halving was unique: Bitcoin had already broken to new all-time highs before the event, driven by the January 2024 spot ETF approvals. The ETF inflows from BlackRock, Fidelity, and others represented an unprecedented structural demand shift.
Calculate your halving 2024 return.
The Halving Pattern
| Halving | Date | Price | 12-Month Return | Peak Return |
|---|---|---|---|---|
| 1st | Nov 28, 2012 | $12 | +9,067% | +9,067% |
| 2nd | Jul 9, 2016 | $650 | +164% | +2,943% |
| 3rd | May 11, 2020 | $8,600 | +455% | +655% |
| 4th | Apr 19, 2024 | $64,854 | TBD | TBD |
Does the Halving Cause Bull Markets?
This is a debate among Bitcoin analysts. The supply-side argument: halvings cut new Bitcoin issuance, so with constant or growing demand, prices must rise. The efficient market argument: halvings are fully predictable and therefore "priced in" well in advance.
The data from three halvings shows post-halving bull markets in each case. However, the percentage returns have diminished with each halving (9,067%, 2,943%, 655%) because Bitcoin's market cap grows - smaller percentage moves require more absolute capital.
The fourth halving's impact will be clearer by 2025-2026.