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Research · Altcoins

The BTC to ETH to alt rotation sequence

The sequence is usually stated as a rule: Bitcoin moves first, ether follows, and the rest of the market follows ether. Tested against the record it is a tendency with prominent exceptions, and the exceptions are the interesting part.

Last reviewed 2026-09-21Source: CoinGecko historical price data documentation; Coin Metrics community data documentationSequence structure and counterexamples only. No return, correlation or beta figure is asserted.

Dataset, period and method

The dataset is the daily price record for Bitcoin, ether and a representative set of large non-Bitcoin assets, as published by a market-data provider. The period is the span over which all three have traded, which begins with ether's public listing in 2015 and therefore excludes Bitcoin's earliest cycles. The method is to state the sequence as a testable ordering, then to ask of each documented episode whether the ordering held.

Stated precisely, the hypothesis has three parts. First, that Bitcoin's relative strength turns before ether's. Second, that ether's relative strength turns before the broader altcoin market's. Third, that the ordering is consistent enough across episodes to be used as a description of how a cycle progresses. The first two are claims about timing that a dated price record can address. The third is a claim about consistency, and it is the one the record is least able to support.

The measure used is relative performance against Bitcoin over a stated window, not an absolute price. That choice matters: in a market where everything is falling, an asset can be "strong" in relative terms while losing value. The sequence is a claim about leadership, and leadership is a relative quantity.

The sequence against the record

The three parts of the rotation hypothesis, what the record would have to show for each to hold, and the counterexamples that qualify it.
Part of the hypothesisWhat would support itCounterexample in the recordStatus
Bitcoin's relative strength turns firstIn each episode, Bitcoin's relative performance against the wider market turns up before ether's doesThere are episodes in which ether led Bitcoin from the outset, and episodes in which the two turned within a window too short to order reliablyHolds often, not always
Ether's relative strength turns before the broader market'sIn each episode, ether's relative performance turns up before the median large altcoin's doesThere are episodes in which a narrow group of large non-ether assets led, and episodes in which ether and the broader market turned togetherHolds often, not always
The ordering is consistent enough to describe a cycleThe ordering holds in most documented episodes, with few exceptionsThe number of documented episodes is small, and the exceptions are numerous enough that the ordering cannot be treated as a ruleNot supported as a rule

Last reviewed 2026-09-21Source: CoinGecko historical price data; Coin Metrics community data documentationThe counterexample column describes the kind of exception present in the record; no specific episode return is quoted.

The first two rows are the parts of the hypothesis that have something to them. Bitcoin is the largest and most liquid asset in the market, and it is the one that institutional and retail flows reach first. It is not surprising that its relative strength would turn before smaller assets', and the record is broadly consistent with that. Ether, as the second-largest asset, sits between Bitcoin and the long tail, and the same logic would put its turn between theirs.

The third row is where the hypothesis fails as a rule. The number of distinct, well-documented episodes is small — a handful rather than a sample — and within that handful the exceptions are frequent enough that the ordering cannot be relied on. A pattern observed in a few episodes, with several counterexamples, is a tendency at best. Stating it as a rule overstates what the record contains.

There is also a measurement problem that makes the ordering harder to establish than it appears. "Turns first" requires a turn to be dated, and a turn is only visible in hindsight once a trend has established itself. Two assets that turn within a few weeks of each other cannot be reliably ordered from daily data, because the choice of window determines the answer. That sensitivity is a reason to treat any claimed ordering with caution, and it is why this page reports the ordering as a tendency rather than a sequence with dates.

Why the counterexamples matter

A sequence that holds most of the time is not useless, but it is also not a rule, and the difference matters for how it should be used. If the ordering were a rule, a reader could use Bitcoin's relative turn as a signal to expect ether's. Because it is a tendency with exceptions, the same observation is consistent with several outcomes, and the exceptions are not rare enough to be dismissed as noise.

The counterexamples also point at a mechanism problem. The sequence story implies that capital moves from Bitcoin to ether to the wider market in order. But a common factor — a change in risk appetite across the whole market — would produce a similar pattern without any ordered transfer, because the largest and most liquid asset would reprice first in any case. The capital rotation page sets out why the published data cannot separate those two explanations.

The honest summary is that the sequence is a useful descriptive shorthand and a poor predictive rule. It captures something real about the order in which a market of unequal liquidity tends to reprice. It does not license the inference that a Bitcoin turn guarantees an ether turn, and it does not survive being treated as a mechanical cycle.

Limitations

The first limitation is the sample. Ether's price history begins in 2015, so the sequence can only be examined over the cycles that followed. That is a small number of episodes, and they are not independent: each occurs in a market whose participants and instruments differ from the last. A pattern drawn from a handful of non-independent observations cannot be generalised with confidence.

The second is the dating problem described above. A turn is identified in hindsight, and the window chosen determines whether two nearby turns are ordered or simultaneous. Different reasonable windows can produce different orderings from the same data, which is a reason to avoid quoting a specific lead or lag.

The third is the distinction between timing and cause. Even where the ordering holds, it establishes that one asset's relative turn preceded another's. It does not establish that the first caused the second, and a common factor remains a complete explanation. No page on this site claims that Bitcoin caused an altcoin's move on the strength of co-movement alone.

Sources and references

The price series behind the comparison are published by the providers below. The Bitcoin-side cycle framing is this site's own record.

  • Ether historical price data. CoinGecko, Ethereum (ETH): the daily series and the 2015 listing date that bounds the comparison period.
  • Community network and market data. Coin Metrics, API Access: the community endpoint and its coverage, which bound what a public analysis can be built on.
  • Bitcoin's cycle record. Bitcoin Data Guide, Market Cycles: the dated expansion and contraction phases used as the frame.
  • Cycle-by-cycle comparison. Bitcoin Data Guide, Cycle Comparison: how Bitcoin's completed cycles are defined and measured.

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