The Bitcoin Halving Explained (And Why It Matters for the Price)

Every four years, Bitcoin's new supply gets cut in half. Here's why that single event has shaped every cycle.

Roughly every four years (every 210,000 blocks), the reward miners receive for processing Bitcoin transactions gets cut in half. This is the 'halving.' It's the entire reason Bitcoin's supply is asymptotic — capped at 21 million coins, ever.

Why it matters for price

Each halving cuts Bitcoin's annual issuance roughly in half. If demand stays even constant, supply contraction tends to push price up. Every halving so far (2012, 2016, 2020, 2024) has been followed by a multi-year price run.

Why it might matter less over time

As Bitcoin matures, the marginal supply impact of each halving shrinks (we're already past 19.5 million of the eventual 21 million coins). Future cycles may be more driven by demand shifts — like ETF flows or sovereign adoption — than by supply mechanics.

Key takeaways
  • The halving cuts new supply by 50% every ~4 years.
  • Every prior halving has preceded a major run.
  • Supply impact shrinks as Bitcoin matures.
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