Bitcoin’s four-year cycle links each halving to a predictable rhythm of boom, top, and drawdown. That pattern is now the subject of open disagreement among analysts. Some argue institutional demand and macro liquidity have overtaken the halving as the market’s main driver, while others point to timing that still lines up with the historical windows. This guide lays out both sides against the current data.
Track the pattern yourself with the Bitcoin 4-year cycle chart, updated live.
Where the current Bitcoin 4-year cycle stands
Bitcoin’s current drawdown and its timing since the most recent halving are being measured against the same historical windows that framed the 2012, 2016, and 2020 cycles. Price has retraced from its most recent cycle peak. The retracement’s depth and duration are being compared, month by month, to how prior cycles unfolded from an equivalent point after their halving.
The scale of institutional flows now in play is part of why that comparison is contested. US spot Bitcoin ETFs have drawn $56.9 billion in cumulative net inflows since their January 2024 launch. That pace of capital dwarfs the roughly 450 BTC in new daily supply the current halving schedule produces.
Analysts disagree on what that comparison shows. The pattern-consistent camp points to a drawdown depth and elapsed time that still sit inside the historical range. NYDIG’s own tracking put the current drawdown at 52.5% over 122 days as of early February 2026, measured from the October 2025 peak. That figure moves with the market and is best treated as a snapshot rather than a final number.
The break camp points to a shallower, choppier decline than 2018 or 2022, and reads that difference as evidence the old rhythm no longer holds. Neither reading changes the raw numbers. It changes how they’re interpreted.
Why analysts say the Bitcoin 4-year cycle is broken
The core argument is that Bitcoin’s price driver has shifted. The halving cuts new BTC supply in half roughly every four years, and that supply shock used to be the dominant force behind each cycle’s timing. A growing group of analysts argues a different mechanism has taken over: sustained institutional demand through spot Bitcoin ETFs. That demand absorbs supply on a continuous basis rather than in a halving-timed pulse.
Spot ETF issuers occupy an unusual position in this debate. 21Shares, a spot Bitcoin ETF issuer, argued in a November 2025 research note that the cycle was “stretching to five” years rather than the historical four. It pointed to deepening institutional participation and a halving supply cut that had shrunk to just 0.85% of circulating supply as the reasons.
By June 2026, with BTC trading below $60,000, the firm walked that call back in its own mid-year report. It conceded that “six months in, we have to be honest: price action still looks familiar.” The reversal was made by the same firm within eight months. It’s one of the clearest illustrations of how unsettled this question is among people paid to have a view on it.
CryptoQuant CEO Ki Young Ju made a similar reversal on the same underlying question in July 2025. He first declared “Bitcoin cycle theory is dead,” arguing that old whales were now selling to new long-term institutional whales rather than to retail buyers at the top. He then acknowledged a related bearish call of his own had proved wrong: “my mistake was ignoring this shift.”
Beyond the ETF-flow argument, several analysts point to a structural fact about Bitcoin’s supply schedule itself: more than 94% of all BTC that will ever exist has already been mined. Each successive halving cuts a smaller share of the remaining issuance, which mechanically shrinks the supply shock’s size relative to the existing stock of coins.
Under this reading, the halving’s price impact fades over time by design, regardless of what institutional demand does.
A third strand of the argument shifts the driver outside Bitcoin altogether. Some analysts argue that Federal Reserve policy and broader macro liquidity conditions now explain Bitcoin’s major turning points better than the halving calendar does. Under this view, rate cuts, quantitative easing, and dollar liquidity cycles move risk assets broadly, and Bitcoin moves with them. The halving date becomes a coincidental rather than causal marker.
Matt Hougan, Bitwise’s chief investment officer, makes a related but distinct argument centered on the buyer, not the calendar. In a July 2025 note, Hougan declared the four-year cycle dead on the grounds that steady institutional and ETF buying has overwhelmed the demand shocks the halving used to produce. He predicted a steadier, sustained boom from 2026 onward rather than the sharp cyclical crash that followed 2017 and 2021.
21Shares frames the shift as a stretching of the cycle’s length. Ki Young Ju frames it as a change in who sells to whom. Hougan frames it as a change in the shape of the boom itself: less parabolic, less prone to a violent unwind.
Taken together, these analysts describe a market that behaves differently than it did in 2013 or 2017. Price action is smoother, with fewer of the parabolic blow-off tops that defined earlier cycles. Turning points now correlate more tightly with monetary policy announcements than with halving anniversaries.
The case that the Bitcoin cycle is still intact
Analysts on the other side of the debate start from a narrower, more mechanical observation: the bottom-to-top and top-to-bottom timing across Bitcoin’s four completed cycles has stayed remarkably consistent. That consistency holds even as the price action inside each cycle has looked different on the surface.
Fidelity Digital Assets is among the firms that have made this timing argument directly. Fidelity’s own cycle analysis puts Bitcoin’s bull-market tops at November 2013 ($1,150), December 2017 ($19,800), and November 2021 ($69,000), each roughly four years apart. Bear-market bottoms followed the same spacing, landing in January 2015, December 2018, and November 2022.
Jurrien Timmer, Fidelity’s director of global macro, made the same point about the current cycle in December 2025. He noted that the October 2025 high of $125,000, arriving after 145 weeks of rallying, “fits pretty well with what one might expect” against the prior three cycles. Fidelity pairs the observation with a caution that cycles aren’t precise instruments.
That caveat matters to this side of the argument as much as the observation itself. Proponents of an intact cycle are not claiming the pattern is a clock. They are only claiming that its rough periodicity has held up across three completed halving cycles and, so far, into the fourth.
On this reading, the current drawdown is read as pattern-consistent rather than as evidence of breakdown. Peaks and troughs are still landing inside the historical windows counted from each halving date, and a milder, slower decline is treated as a difference in degree, not in kind.
On-chain data offers a second, independent read. Bitcoin Magazine Pro’s tracking of the MVRV Z-Score is an on-chain valuation metric comparing market value to realized value.
The indicator has historically flagged the market high of each Bitcoin cycle to within two weeks. Proponents of the intact-cycle view point to it as evidence the same on-chain rhythm is still operating beneath the price action.
Analysts making this case point out that every cycle to date has looked structurally different from the one before it. Diminishing returns, smoother price action, and longer drawdowns have each shown up incrementally since 2012, without the underlying timing pattern breaking down. Under this view, the current cycle is doing more of the same, not something categorically new.
Proponents of this case treat institutional ETF demand as an amplifier layered on top of the halving-driven cycle, not a replacement for it. The halving still sets the supply backdrop, in this reading, while ETF flows change the shape and smoothness of the price path without erasing the periodicity that has held across four halvings.
NYDIG takes the most explicit institutional stance on this side of the debate. Its own research treats the four-year cycle as the “null hypothesis”, the default framework to disprove rather than the exception to defend.
On that basis, NYDIG’s read of the current drawdown leans toward more downside still being likely before a cyclical bottom completes. That reading is consistent with the pattern the prior three cycles set, rather than a break from it.
Bitcoin’s four-year cycles at a glance
| Cycle | Halving date | Approximate cycle peak | Approximate peak-to-bottom drawdown |
|---|---|---|---|
| 2012 | November 2012 | November 2013 | 85.9%, peak $1,163 to trough $164 |
| 2016 | July 2016 | December 2017 | 84.2%, peak $19,783 to trough $3,122 |
| 2020 | May 2020 | November 2021 | 77.6%, peak $69,044 to trough $15,476 |
| 2024 | April 2024 | October 2025 | 52.5% as of early Feb 2026 (NYDIG), ongoing and subject to change |
What would it mean if the four-year cycle stopped applying?
If the four-year cycle stopped applying, the practical consequence would be that halving dates lose their value as a timing signal for cycle tops and bottoms. Investors and analysts who position around the halving calendar, whether for accumulation, rebalancing, or exit timing, would need a different framework. That framework would anchor to macro liquidity conditions, ETF flow data, or some other driver not tied to a fixed four-year schedule.
This breakdown lays out both camps’ reasoning and the data each side points to. It isn’t a recommendation to trade around either view.
A broken cycle wouldn’t necessarily mean less volatility. It would mean volatility decoupled from the halving calendar, driven instead by whatever combination of monetary policy, institutional flows, and market structure turns out to matter most. Historical drawdown depth and duration would stop functioning as a reliable comparison point for the current cycle, since the comparison assumes the underlying mechanism generating those numbers hasn’t changed.
Bitcoin’s cycle theory has a cautionary precedent for how quickly a popular framework can stop working. PlanB’s Stock-to-Flow model, popularized to millions of followers on Twitter/X and taken seriously across the market through 2020 and 2021, predicted Bitcoin would reach $100,000 by December 2021.
Bitcoin traded below $50,000 instead. The model’s creator did not walk away from it, even after saying he would call it invalidated if that threshold was missed.
Neither side of the four-year cycle debate has been statistically proven in the rigorous sense. The pattern rests on three completed cycles and a fourth still in progress, a small sample size. Research on statistical significance warns that a sample this small is prone to reading a real, repeatable effect into what may just be a run of coincidences.
Bitcoin remains a young enough asset that the pattern could break going forward, regardless of which camp turns out to be right.
Track the current Bitcoin 4 year cycle right now
The Bitcoin 4-year cycle chart plots the current cycle’s price history against every prior halving epoch, live and updated daily.