What is the Bitcoin halving?
Bitcoin's protocol limits the total supply to 21 million BTC. To enforce this gradually, the reward paid to miners for adding a new block is cut in half approximately every 210,000 blocks — roughly every 4 years. This event is called the halving (or halvening). The most recent halving occurred in April 2024, reducing the block reward from 6.25 BTC to 3.125 BTC.
The halving matters because it directly reduces the daily issuance of new Bitcoin. Before the 2024 halving, approximately 900 new BTC entered the market every day. After the halving, that dropped to ~450 BTC/day. If demand stays constant or grows, this supply reduction creates upward price pressure — a mechanism that has played out in every prior cycle.
The 4 halvings — what happened each time
| Halving | Date | Reward | BTC at halving | Cycle top | Gain |
|---|---|---|---|---|---|
| #1 | Nov 2012 | 25 BTC | $12 | $1,150 (Dec 2013) | +9,483% |
| #2 | Jul 2016 | 12.5 BTC | $650 | $19,800 (Dec 2017) | +2,946% |
| #3 | May 2020 | 6.25 BTC | $8,500 | $69,000 (Nov 2021) | +711% |
| #4 | Apr 2024 | 3.125 BTC | $63,700 | — (current) | In progress |
The pattern is consistent, though the magnitude diminishes with each cycle as Bitcoin's market cap grows. The 2012 halving produced a 9,483% gain; the 2020 halving produced 711%. This diminishing-returns pattern is expected — it takes exponentially more capital to move a larger market.
The 4 post-halving phases
Each halving cycle moves through recognizable phases. The NHCI Score reflects where the market is within each phase in real time, combining on-chain data with market and macro signals.
Price typically consolidates near the halving price. Retail attention is low. On-chain shows long-term holders accumulating. NHCI Score: 35–50 range.
Price breaks above the previous ATH. Volume increases. MVRV rises. Media coverage returns. NHCI Score begins climbing into the 50–65 Bull zone.
Parabolic price action. NUPL above 0.75. aSOPR > 1.05. Fear & Greed at Extreme Greed for weeks. NHCI Score enters 65–75 Hot Zone or above.
Price peaks and enters multi-month decline. MVRV reverts below 1. NUPL drops toward 0 then negative. NHCI Score drops back toward the 0–35 Bottom zone — setting up for the next halving.
We are currently in the post-2024-halving window. The NHCI Score tracks 37 indicators in real time to tell you exactly which phase of the halving cycle Bitcoin is in — and whether the risk/reward is historically favorable.
See where we are in the halving cycle →How the NHCI Score tracks the halving cycle
The BTC NHCI Score does not use the halving date as a direct input. Instead, it reads the downstream effects of the halving through 37 on-chain, market, and macro indicators. When the halving begins compressing supply, it shows up in the data: long-term holder accumulation increases, exchange outflows rise, MVRV gradually climbs, and the NHCI Score reflects this shift in cycle positioning.
This approach makes the NHCI Score more robust than simple halving date calendars. It does not assume the cycle will peak at exactly 12 or 18 months — it reads the actual market conditions in real time. If the cycle extends (as cycles tend to do as the market matures), the NHCI Score will remain in the Bull zone longer. If conditions deteriorate early, the score will show that too.
Track the halving cycle in real time — free.
The NeverHodl Dashboard shows all 37 cycle indicators live, updated every hour. Know where we are in the 2024 halving cycle right now.
Methodology → · Live API → · Data Attribution →
Key takeaways
- Bitcoin halving occurs every ~210,000 blocks (~4 years), cutting miner rewards in half
- All 4 halvings have been followed by a major bull market within 12–18 months
- Gains per cycle: 2012 (+9,483%), 2016 (+2,946%), 2020 (+711%) — diminishing but still significant
- The 2024 halving (April 2024) reduced daily issuance from ~900 to ~450 BTC/day
- The NHCI Score tracks the halving cycle's effects through 37 real-time indicators — not by calendar