The milestone
Roughly 105,000 blocks remain in epoch five, meaning Bitcoin has now passed the 50% mark in the current halving cycle. The next halving is expected around mid-April 2028 at block height 1,050,000, when the block subsidy will drop from 3.125 BTC to 1.5625 BTC.
Network issuance currently runs below 1% annualized — lower than the dollar, the euro, or gold. That fact alone is the best single-sentence argument for Bitcoin's role in a long-horizon portfolio.
But the more interesting number is what the price has done since the April 2024 halving. Bitcoin is up roughly 15% from $64,000 to $74,300 at the halfway mark. In every prior cycle, returns over the equivalent window ran several multiples higher.
The diminishing-returns pattern
Each halving cycle has produced smaller percentage gains than the last.
- 2012–2016 cycle: Bitcoin ran from roughly $12 to $650 — about 54x
- 2016–2020 cycle: From $650 to $8,500 — about 13x
- 2020–2024 cycle: From $8,500 to $64,000 — about 7.5x
- 2024–2028 cycle (to date): From $64,000 to $74,300 — roughly 1.15x at the halfway point
Even accounting for the fact that the 2024–2028 cycle has two years left and saw an interim top near $126,000 last October, the trajectory is clear: each cycle asks more capital to produce proportionally less price movement.
This is not a bug. It is exactly what you would expect as an asset matures. Bitcoin's market capitalization is now north of $1.4 trillion. Moving a $1.4T asset 50% requires hundreds of billions of dollars of net buying. Moving a $150B asset 50%, as in early 2020, required a fraction of that.
What changed this cycle
Three structural factors distinguish 2024–2028 from its predecessors.
First, spot ETFs reshaped the demand side. BlackRock's IBIT, Fidelity's FBTC, and the other approved vehicles have absorbed more than a million BTC since launch. That is demand Bitcoin never had in prior cycles — but it is also demand that smooths out reflexive speculative buying, because RIAs and wirehouses dollar-cost average rather than FOMO in.
Second, corporate treasuries are now material buyers. Strategy alone holds more than 780,000 BTC. Public companies in aggregate hold over 1.1 million BTC — roughly 5% of circulating supply. This is new structural demand, but again, it arrives as steady accumulation rather than speculative spikes.
Third, volatility has compressed. Realized volatility on one-year windows is trending lower cycle over cycle. A less volatile asset produces smaller percentage returns in both directions.
What long-term holders should take from this
The diminishing-returns curve is not a reason to be bearish. It is a reason to recalibrate expectations.
Models built on 10x-per-cycle assumptions will miss badly. Models built on steady 20–30% compounded annual growth with lower drawdowns will more closely track what this cycle — and likely the next — produces.
For planners running retirement math, the practical shift is significant. A 30% CAGR with 40% max drawdown is a dramatically different portfolio experience than a 100% CAGR with 80% drawdowns. The former is investable for a retiree. The latter is not.
Bitcoin Gate Take
Bitcoin becoming a boring, lower-volatility, lower-upside asset is the bull case, not a counter to it. The four-year cycle theory was always going to break once the asset matured; the only question was when.
Watch the next two years for whether the pattern holds — a late-cycle melt-up above the $126,000 prior high, followed by a shallower drawdown than 2022's 75%. That combination would mark Bitcoin's transition from a trade to an allocation.
If you're modelling the next cycle under more modest return assumptions, our retirement calculator lets you swap between aggressive Power Law, 50% CAGR, 30% CAGR, and 20% CAGR growth models to see how sensitive your plan is to that single assumption.