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Research · Altcoins · Strand D

SOL market-cap growth in context

Market capitalisation is price times circulating supply, and for an asset with a scheduled unlock programme the second term moves on its own. This page sets SOL's capitalisation against Bitcoin's and the wider market, with the supply effects stated rather than assumed away.

Last reviewed 2026-09-21Source: CoinGecko market-capitalisation series; Messari unlock schedules and supply dataMethod and supply-effect discussion only. No capitalisation figure is asserted here that the reader cannot recompute from the cited series.

What the measure is, and where it misleads

Market capitalisation is the daily close multiplied by the circulating supply on the same date. The series used here are the CoinGecko capitalisation series for SOL and BTC, with supply data cross-checked against Messari's asset-level records. The window runs from SOL's first liquid market in August 2020 to the last complete month before this page's review date.

The measure has a well-known weakness that matters more for some assets than others. It treats every circulating unit as if it were available at the quoted price, which is not true for any asset and is less true for a smaller one. The site's market cap explained page sets out the general problem; this page is concerned with the specific way supply changes distort a growth comparison.

The wider-market context is Bitcoin's share of total crypto market capitalisation, which is the measure described on the Bitcoin dominance page. Using dominance as the context is deliberate: it lets the comparison be about relative position rather than about a total that depends on which assets the source chooses to include.

The comparison, with supply effects noted

How SOL's market capitalisation compares with Bitcoin's and with the wider market across the record, with the supply effects that bear on each phase.
PhaseWindowCapitalisation in contextSupply effect
ListingAug 2020 – Dec 2020A small capitalisation relative to Bitcoin's, with a thin float and limited venue coverage.Circulating supply was a small fraction of the eventual total, so the capitalisation series was especially sensitive to price.
ExpansionJan 2021 – Nov 2021Capitalisation grew faster than Bitcoin's over the phase, and SOL's share of the wider market rose.Unlocks added to circulating supply through the phase, so part of the capitalisation growth came from supply rather than price.
ContractionNov 2021 – Dec 2022Capitalisation fell heavily, and SOL's share of the wider market fell with it.Supply continued to increase while price fell, which means the capitalisation decline understates the price decline.
RecoveryJan 2023 – Dec 2024Capitalisation recovered from the trough but did not regain its previous share of the wider market within the window.The unlock schedule continued, so a rising capitalisation reflects both price recovery and a larger circulating base.
Recent periodJan 2025 – review dateCapitalisation has traded in a range relative to Bitcoin's, with the share of the wider market moving less than in the earlier phases.Supply growth has slowed relative to the early period, which makes the capitalisation series a cleaner read on price than it was in 2021.

Last reviewed 2026-09-21Source: CoinGecko market-capitalisation series; Messari supply and unlock dataPhase boundaries follow this site's cycle dates. The supply column describes the direction of the effect; the underlying schedules are in the cited source.

Why supply changes complicate the comparison

Bitcoin's supply schedule is fixed by protocol and known in advance: new coins are issued on a declining schedule, and there is no discretionary release. Solana's supply has grown through a combination of issuance and a scheduled unlock programme, and the unlock component is not a protocol rule in the same sense. That difference matters for any capitalisation comparison, because the two assets' supply series are not generated by the same kind of process.

The practical consequence is that a rising capitalisation can mean two different things. It can mean the price rose, or it can mean more units became circulating at a similar price, or some combination. For Bitcoin the second channel is small and predictable; for Solana in its early years it was neither. A reader comparing the two capitalisation series without accounting for this will attribute to price what belongs to supply.

The direction of the distortion is worth stating plainly. During the 2022 contraction, supply was still increasing while price fell, so the capitalisation decline was smaller than the price decline. A reader who used capitalisation as a proxy for price would understate how far SOL fell. The drawdown comparison measures the price path directly for exactly this reason.

What this page does not claim

A capitalisation comparison describes relative size. It does not measure adoption, usage, security or value, and it is a poor proxy for any of them. Two networks with the same capitalisation can have very different levels of activity, and a network's capitalisation can rise while its usage falls.

The comparison is also sensitive to the denominator. "The wider market" is not a fixed set: the number of tracked assets changes over time, and a share-of-total measure moves when the set changes even if nothing about the asset in question does. Using Bitcoin's dominance as the context reduces this problem but does not remove it, because dominance is itself computed against a total.

Finally, the page makes no claim about what any capitalisation figure implies for future returns. Capitalisation is a description of a market at a point in time, and the record here is a description of how that description changed.

Dataset, period, method and limitations

Dataset
CoinGecko market-capitalisation series for SOL and BTC, with circulating-supply and unlock data cross-checked against Messari's asset-level records.
Period
August 2020 to the last complete month before the review date, with phase boundaries following this site's Bitcoin cycle dates.
Method
Daily close multiplied by circulating supply on the same date. The comparison is drawn against Bitcoin's capitalisation and against Bitcoin's share of the wider market, with the direction of the supply effect stated for each phase.
Limitations
Circulating supply is not a precisely defined quantity, and different sources treat locked, treasury and foundation holdings differently, so figures can differ by a meaningful margin. The record covers one cycle for SOL, and the supply dynamics of the early period are not representative of the later period.

Where this sits in the wider record

The capitalisation comparison is the size-based counterpart to the SOL/BTC ratio, which measures relative price rather than relative size. The bull and bear phase page supplies the phase frame used above.

For the general treatment of what market capitalisation measures and where it misleads, see market cap explained. For Bitcoin's share of the wider market, see Bitcoin dominance.

Sources and references

Every source below is named and linked. Where a page describes a method rather than a figure, the source is the specification or documentation that defines the method. Last reviewed 2026-09-21.

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