Bitcoin Halving Cycle Math: Grading the Price Predictions

Bitcoin’s fifth halving is the most predictable event left on its calendar. The block subsidy drops from 3.125 BTC to 1.5625 BTC at block 1,050,000, expected around April 2028, and nothing said between now and then changes that outcome. What isn’t fixed is everything downstream of it: where price goes, whether the old four-year rhythm still holds, and which of the many confident forecasts circulating right now will look smart in hindsight. As of July 18, 2026, Bitcoin trades near $63,900, with a market cap around $1.28 trillion and roughly 20.06 million coins in circulation out of the 21 million that will ever exist, according to CoinGecko.

Rather than add one more number to that pile, this piece goes back through the price calls that have actually been made about this halving cycle, the ones with a specific target and a specific deadline, and checks them against what happened. A few forecasters made an explicit, testable promise and then quietly moved the goalposts once it failed. Others have been more careful, framing ranges instead of points and revising in public as new data arrived. None of this is an argument to ignore predictions altogether. The underlying supply mechanics are worth understanding on their own terms, and halving day itself has become enough of a spectacle to be a story in its own right. It is, however, a reason to read the next round of Halving Five forecasts by checking the forecaster’s track record first, and their confidence second.

The One Certainty: What Halving Five Actually Changes

Start with what isn’t in dispute. Bitcoin’s issuance schedule is written directly into the consensus code: every 210,000 blocks, roughly four years at Bitcoin’s ten-minute target block time, the block subsidy paid to miners is cut in half. The rule lives in Bitcoin Core’s GetBlockSubsidy function, and it doesn’t require a vote, a central bank meeting, or a majority of miners to agree on anything. It just happens at a predetermined block height.

Halving Five will cut new issuance from roughly 450 BTC per day to 225 BTC per day, pushing annual inflation down toward a few tenths of a percent and pushing Bitcoin’s stock-to-flow ratio, the number of years of current supply it would take to reproduce the existing stockpile, from around 122 today toward roughly 245 afterward, per CoinGecko’s halving tracker. As of this week, that puts the event in the neighborhood of 91,000 blocks and a little over 600 days away. Everything else in this piece is about what people expect that fixed, known change to do to an unfixed, unknown price.

Four Cycles, Four Verdicts, One Trend

Bitcoin has only lived through four completed halvings, a limitation covered in more detail later in this piece. But the pattern across those four has been consistent enough to become the basis for an entire genre of prediction. Measured from halving-day price to the peak of the following bull run, each cycle has produced a smaller multiple than the one before it.

The pattern holds because the base gets bigger every cycle. CoinDesk’s July 2026 analysis of capital efficiency found that the 2011 cycle needed roughly $2.8 billion of net inflows to produce a 55,000% gain, the 2015 cycle needed about $69 billion for a 10,000% gain, 2018 needed $365 billion for a 2,000% gain, and the cycle since 2022 has absorbed around $697 billion in inflows for a 689% gain, according to CoinDesk. With Bitcoin’s market cap now above $1.2 trillion, a repeat of the kind of parabolic run seen in 2013 or 2017 would require well over a trillion dollars of fresh capital, more than most of the asset’s current total value. That single constraint is a big part of why so many predictions graded below cluster in the $150,000 to $500,000 range instead of repeating the 10x-plus calls that used to be normal.

How We’re Grading These Calls

To keep this fair, only predictions with two ingredients made the list: a specific number, and a specific deadline that has either already passed or is close enough to judge the trajectory. Vague sentiment doesn’t count, and neither does a forecast so far out (2030, 2033, 2140) that almost nobody will remember it was made. Where a deadline hasn’t arrived yet, the call is marked pending rather than graded, since calling a target wrong before its own due date isn’t fair either. Every figure below is sourced to the outlet that reported it at the time, not reconstructed from memory.

Case File: PlanB’s Broken Promise

No single model shaped halving-cycle thinking more than PlanB’s stock-to-flow framework, first published in 2019. The idea was simple: Bitcoin’s value should track its scarcity, measured as the ratio of existing stock to new annual flow, and each halving should push that ratio, and the price, onto a new step. It produced a genuinely strong call through 2020, then a series of increasingly public misses.

The clearest one is also the most testable, because PlanB made it testable on purpose. In June 2021, he stated he would call stock-to-flow “invalidated” if Bitcoin hadn’t reached $100,000 by the end of that year, Protos reported, tracking the promise against the outcome. Bitcoin closed December 2021 under $50,000, roughly half the stated floor. PlanB did not invalidate the model. Instead, he said he was fine “being at the lower bands,” reframing a missed floor as an acceptable range after the fact.

The model kept producing specific, checkable numbers, and they kept missing. Bitcoin fell to around $15,500 in 2022, more than 80% below where stock-to-flow said it should sit, per the same tracking. The version of the model covering the current 2024-2028 cycle put the average price near $500,000, with a stated range of roughly $250,000 to $1 million; actual prices ran between about $59,000 and $126,000 through the first half of 2026, nowhere near the band’s floor. Bitcoin Magazine’s technical critique argues the deeper problem is structural rather than a run of bad luck: stock-to-flow regresses market value against stock, but market value is stock multiplied by price, so the model partly tests a variable against a transformation of itself. Once that autocorrelation is accounted for, the critique argues, the model’s statistical fit collapses toward zero.

Case File: The Million-Dollar Bet That Wasn’t

Not every failed prediction came wrapped in a chart. In March 2023, during the regional banking crisis, entrepreneur and former Coinbase CTO Balaji Srinivasan publicly bet that Bitcoin would reach $1,000,000 within 90 days, offering to pay Twitter critic James Medlock $1 million if it happened. Bitcoin was trading around $26,000 at the time.

He didn’t wait out the full 90 days. On May 2, 2023, about six weeks in, Srinivasan closed the bet by mutual agreement and paid out $1.5 million: $500,000 to Medlock, $500,000 to Bitcoin Core development through Chaincode Labs, and $500,000 to the charity GiveDirectly, CoinDesk reported. He framed the loss as intentional theater rather than a bad call, saying afterward that he wanted to send a costly, public signal about what he saw as brewing problems in the traditional financial system, a fiat crisis rather than just a banking one. Graded purely on the number and the deadline, it’s a clean miss. Graded on the argument underneath it, a bet really about currency stability more than about Bitcoin’s own fundamentals, the picture is murkier, and that’s a pattern that recurs throughout this piece: the price target fails while the underlying thesis keeps circulating.

Case File: Wall Street’s Moving Targets

Institutional forecasters get graded on a shorter leash than internet pundits, since their targets get quoted on CNBC and repeated in client notes. Fundstrat co-founder Tom Lee has been the most prolific and most-quoted of the bunch through this cycle, and his record is mixed enough to be genuinely instructive rather than a simple pile-on.

In March 2025, Lee said Bitcoin could do “better than $150,000” by the end of that year. By August and September, he’d raised that to Bitcoin “easily” reaching $200,000 by December 31. Neither happened: Bitcoin’s actual 2025 high was $126,198 on October 6, and the year closed around $88,500. On January 5, 2026, on CNBC, he said he didn’t think Bitcoin had peaked and called for a new all-time high before the end of that month. It didn’t arrive. Instead, price kept sliding toward the $59,375 low reached that June.

What makes Lee’s case interesting rather than just a list of misses is the reasoning attached to the newest version of the call. He argues the four-year cycle itself is breaking down, replaced by ETF-driven demand, institutional accumulation, and a friendlier regulatory backdrop, telling reporters “there are tailwinds that are building,” Bitcoin.com News reported, as he doubled down on a $250,000 target for 2026 even after the earlier misses. Some of that regulatory tailwind is real and ongoing, including the CLARITY Act working its way through Congress, which would rewrite how the SEC and CFTC split authority over digital assets. Whether tailwinds translate into a six-figure print by year-end is a separate question from whether they exist at all, and it’s the one this piece is actually grading.

Sell-side research has its own version of the same pattern. Bernstein’s Gautam Chhugani projected Bitcoin reaching $200,000 by the end of 2025; the actual close was roughly $88,500, well short. By July 2026, with Bitcoin down 54% from its October peak by Bernstein’s own measurement, the firm reset to a $150,000 year-end 2026 target it explicitly described as “ambitious” rather than a base case, The Block reported. That note also flagged a more telling number: combined ETF and treasury-company inflows for 2026 ran to only about $10 billion, against roughly $60 billion in 2025, with spot ETFs alone shedding a net $5.5 billion for the year even as corporate treasuries kept buying.

Standard Chartered’s Geoffrey Kendrick took a different path through the same period. He cut his target from $150,000 to $100,000 in February 2026 and explicitly warned of a possible drop toward $50,000, then called the bottom in June once Bitcoin actually hit $59,375, a 53% drawdown from the October all-time high, telling CoinDesk “winter is over, welcome back to crypto spring,” per CoinDesk, while keeping his $100,000 year-end target intact. Of everyone graded in this piece, Kendrick’s sequence, cut the number, flag the downside, then call the low close to where it actually happened, holds up the best so far, though the year-end target itself is still pending as of this writing.

Case File: The Ten-Year Targets Nobody Can Grade Yet

Some forecasts dodge grading entirely by pushing the deadline far enough out that nobody will circle back. ARK Invest’s Cathie Wood has run several versions of a 2030 Bitcoin price target, and watching the number move is more informative than any single snapshot of it. In January 2025, ARK presented a $300,000 bear case, $710,000 base case, and $1.5 million bull case for 2030; the bull case climbed as high as $2.4 million that spring before Wood cut the base case back down to $1.2 million in November 2025, citing stablecoins taking over a role she had previously expected Bitcoin itself to play: “stablecoins are usurping part of the role that we thought Bitcoin would play,” she told Bitcoin Magazine.

None of those numbers are gradeable for another four years, close to the length of an entire halving cycle. What is visible right now is the range: over roughly eleven months, the bull case moved from $1.5 million to $2.4 million and back down through a $1.2 million base, a swing of close to 50% in either direction on a target nobody can check for half a decade. That volatility in the forecast itself, not just in the asset being forecast, is worth noticing on its own.

Veteran trader Peter Brandt’s cycle-peak call sits in similar territory: he’s calling for $300,000 to $500,000 at the top of this cycle, a claim CoinDesk’s own analysis pushed back on directly, pointing to the same shrinking peak-to-peak multiples covered above (roughly 75x from 2013 to 2017, 3.5x from 2017 to 2021, and 1.8x from 2021 to 2025) and arguing Bitcoin’s growing institutional and derivatives footprint is making it “less volatile and more Wall Street-like,” cutting against another outsized multiple regardless of what ETF inflows do. Brandt’s call has no fixed due date, since nobody agrees on exactly when this cycle peaks, which is itself part of why it’s currently ungradable.

The Scorecard

Laid out together, the graded calls skew heavily toward misses, with the more measured, range-based forecasts holding up better than the single-number moonshots.

Two patterns stand out. First, nearly every prediction graded as a clean miss above shared the same shape: a round, headline-friendly number attached to a near-term deadline. Second, the calls that come closest to holding up, Kendrick’s cut-then-call sequence chief among them, were built around a range and a public willingness to revise, rather than a single fixed point defended indefinitely.

Why Four Data Points Can’t Build a Model

Bitcoin has existed for roughly seventeen years and lived through exactly four completed halvings. That is not a dataset large enough to statistically validate anything, yet an entire industry of charts, regression lines, and rainbow-colored price bands has been built on top of it. Stock-to-flow’s core flaw, discussed above, is a specific version of a more general problem: fitting a model to four points and extrapolating with confidence is closer to pattern recognition than to forecasting.

Three structural issues compound the small sample:

• Survivorship bias: PlanB’s accurate 2019-2020 call still gets cited constantly, while the misses that followed it get mentioned far less.
• Incentive misalignment: a vague, honest range gets no headlines, while a round six-figure number gets booked on CNBC regardless of whether it lands.
• Reflexivity: a widely believed target can help inflate the leverage that eventually unwinds against it, turning a popular prediction into part of its own undoing.

The clearest recent example of the third issue sits right around the October 2025 correction. Months of six-figure target talk from multiple forecasters helped build up leveraged positioning into the rally; when the rally stalled just above $126,000 instead of continuing toward the widely repeated $150,000-plus targets, the resulting unwind wiped out billions in a matter of weeks. The prediction didn’t just fail to describe the market. For a stretch, it helped shape the very positioning that made the subsequent drop sharper.

When Forecasters Reframe Instead of Predict

Some of the most quoted voices in this space get around the grading problem by trading a falsifiable number for a narrative that’s harder to pin down. Bitwise CIO Matt Hougan published a memo in December 2025 arguing the four-year cycle was dead, pointing to reduced leverage after the October liquidations, falling rates, and growing institutional allocation from firms like Morgan Stanley and Wells Fargo, per CoinDesk. Two months later, in February 2026, with Bitcoin down sharply, he was cited pointing to that same four-year cycle as a leading reason for the losses. The two positions aren’t strictly contradictory, since the December memo was about structural, multi-year drivers rather than immunity from a near-term drawdown, but the sequence shows how easily “the cycle” gets invoked to explain whatever just happened rather than to predict what happens next.

Not every reframe is evasive. CryptoQuant founder Ki Young Ju has argued Bitcoin “needs to be a core macro asset, not just a retail-driven ETF trade,” per CoinDesk, pointing to realized cap, the aggregate cost basis of every coin last moved on-chain, holding near a record $1.125 trillion through the 2025-2026 correction rather than collapsing the way it did in prior downturns. That’s a genuine, checkable data point about market structure rather than a price target dressed up as one, which is why it gets treated differently in the next section.

What the Market Itself Is Betting

There is one more category of prediction worth including: the ones made with real money on regulated prediction markets rather than in interviews. Kalshi and Polymarket both run active Bitcoin price markets for 2026, and unlike the calls above, they don’t produce a single confident number, they produce a probability distribution, arguably a more honest format for something this uncertain.

As of this summer, Kalshi pricing implied roughly a 47% probability that Bitcoin tops $100,000 at some point during 2026, while a separate Polymarket market gave about 19% odds to that same $100,000 threshold and priced in a 53% chance of a dip below $50,000 before year-end, Bitcoin.com News reported. The more ambitious $150,000 threshold drew only about 7% on Polymarket and 4% on Kalshi. Kalshi’s broader year-end distribution clustered its highest probability mass in the $50,000 to $55,000 range. Across both platforms, traders had deployed more than $78 million on these markets.

That’s a meaningfully more conservative picture than almost every named forecaster covered above, and it’s worth taking seriously precisely because nobody on a prediction market is selling a newsletter, a media hit, or an asset management product off the back of their position. It doesn’t mean the crowd is right. Prediction markets have their own well-documented biases toward the status quo and against long-tail outcomes. But it’s a useful counterweight to a research and media ecosystem that tends to reward the boldest number in the room.

The Signals Analysts Trust More Than Price Targets

The forecasters who’ve aged best through this cycle tend to lean on descriptive, on-chain data rather than a single output number. Realized cap, mentioned above, is one example: it first crossed $1 trillion in July 2025 and stayed above that mark through the entire 2025-2026 drawdown, the first time that metric has held near a record through a correction this size instead of falling alongside price the way it did in 2018 and 2022.

MVRV Z-Score, which compares market value to realized value to flag overheated tops, tells a similar story, with the usual caveat that different data providers report slightly different exact readings for the same period, so treat the precise numbers as directional rather than exact. It reached roughly 10 at the 2017 top and roughly 7 at the 2021 top; through the October 2025 run, it stayed in the mid-single digits, well below either prior extreme. That’s a genuinely useful signal precisely because it isn’t a price target. It’s a description of how stretched the market is relative to its own history, and that kind of framing has held up better than point forecasts through this cycle.

ETF flow data has become the newest addition to that toolkit, and HOGE Wire covered what that demand-side variable actually changes about the halving math in more depth previously. The short version: spot Bitcoin ETFs now hold around 6.5% of circulating supply, and 2026 saw the longest net-outflow streak on record before flows flipped positive again in early July. That’s a live, weekly-updating data source in a way a single analyst’s year-end target never can be, and it’s part of why flow trackers increasingly show up alongside, or instead of, price predictions in serious research notes.

What This Means for Halving Five

None of this means forecasting is worthless, or that Halving Five predictions should be ignored between now and April 2028. It means the specific number attached to any single call matters less than the track record and the reasoning behind the person making it. A forecaster who has cut, revised, and explained a target in public, the way Kendrick did through the first half of 2026, has earned more credibility than one who has simply repeated the same round number through two straight misses.

It’s also worth watching where the mining side of this cycle lands, since hashrate has already been migrating across borders well ahead of the actual halving date, and pool-level concentration shapes how that migration plays out at the protocol layer. Halving Five will cut miner revenue from new issuance in half again, and how that plays out for the weakest operators tends to say more about near-term price pressure than any single year-end target above.

The honest position heading into Halving Five is a range, not a round number: somewhere between the roughly $50,000 to $55,000 zone prediction markets currently weight most heavily and the $150,000-plus targets still being defended by Fundstrat and Bernstein, with genuine, evidence-backed disagreement about which end is more likely. Anyone offering a single confident figure for April 2028 today is making exactly the kind of call this piece just spent several thousand words grading, and the scorecard above suggests treating it accordingly.

Frequently Asked Questions

When is the next Bitcoin halving expected?

Halving Five is expected around April 2028, at block height 1,050,000, when the block subsidy drops from 3.125 BTC to 1.5625 BTC. As of July 2026, that is roughly 91,000 blocks and a little over 600 days away, based on Bitcoin’s average ten-minute block time, per CoinGecko’s halving tracker.

Has PlanB’s stock-to-flow Bitcoin model been proven wrong?

The model has missed its own stated targets repeatedly. PlanB said in June 2021 he would call stock-to-flow invalidated if Bitcoin had not reached $100,000 by that December; it closed under $50,000 and the model was not invalidated. It also missed badly during the 2022 crash and has run well above actual prices for the 2024-2028 cycle. Critics point to a structural statistical flaw too, since the model tests market value against a transformation of itself.

Is the Bitcoin four-year halving cycle dead?

There is no consensus. Bitwise’s Matt Hougan and Fundstrat’s Tom Lee have both argued the traditional cycle is breaking down due to ETF demand and institutional adoption, while Standard Chartered’s Geoffrey Kendrick and the pattern of shrinking peak-to-peak multiples suggest the underlying rhythm, just muted, is still intact. Realized cap holding near record levels through the 2025-2026 drawdown is one of the stronger data points for the changed camp.

What price are analysts predicting for the next Bitcoin cycle?

Targets vary widely and have shifted often. Bernstein has an ambitious $150,000 year-end 2026 target, Fundstrat’s Tom Lee has repeated a $250,000 call for 2026, Peter Brandt expects a $300,000 to $500,000 cycle peak, and ARK Invest’s 2030 base case has moved between $1.2 million and $2.4 million within a single year. The wide spread and frequent revisions are themselves useful information about how uncertain these targets really are.

What do prediction markets say about where Bitcoin’s price is headed?

Prediction markets are notably more conservative than most named forecasters. Kalshi pricing implies roughly 47% odds Bitcoin tops $100,000 at some point in 2026, while a Polymarket market puts the same threshold at about 19% and prices a 53% chance of a dip under $50,000, with the $150,000 level drawing only single-digit odds on both platforms.

Written by the HOGE Wire markets desk.