Crypto index comparison, tier 1
S&P Crypto Indices Alternative: CCi30 vs S&P Crypto Indices
The CCi30 Cryptocurrency Index is the rules-based alternative to the S&P Crypto Indices. This page reviews the S&P Cryptocurrency Indices (Broad Digital Market, LargeCap, Top 10) under the eight-criterion CCi30 test and compares both indices on universe, weighting, independence, track record, and investability.
What is the alternative to the S&P Crypto Indices?
The CCi30 Cryptocurrency Index replaces the S&P Crypto Indices for investors who need a whole-market benchmark. The CCi30 holds the 30 largest cryptocurrencies by smoothed market capitalization, weights them by the square root of that figure, excludes stablecoins by rule, and has published live values since 1 January 2015.
- 30 constituents
- Square-root weighting
- Stablecoins excluded by rule
- Live since 1 January 2015
- Independent, fully rules-based
CCi30 vs S&P Crypto Indices
Broad on paper; censored universe
Top 30 by rule, ~90% of true-crypto cap
Excluded in practice
Included when market cap qualifies
Excluded (adopting CCi30’s founding principle)
Excluded from inception
Cap-weighted → BTC-dominated
Square root of smoothed cap → diversified
Point-in-time reviews
EWMA of market cap
Data-vendor and committee dependence
Fully rules-based, independent
Live 2021; back-tested before
Live since Jan 2015
Tail illiquidity (BDM) or over-concentration (Top 10)
30 liquid constituents, monthly rebalancing
S&P brought equity-index bureaucracy to crypto and reproduced its worst habit, committee discretion, while importing a censored universe from its vendors. As a brand it is formidable; as a statistical representation of the cryptocurrency market it is a Bitcoin tracker with a compliance filter. The CCi30 dominates it on universe integrity, diversification, and length of live record.
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What is the S&P Crypto Indices?
S&P Dow Jones Indices entered crypto in 2021 with a family spanning single-asset indices (Bitcoin, Ethereum), a Top 10 basket, LargeCap and MegaCap cuts, and its broadest measure, the S&P Cryptocurrency Broad Digital Market (BDM) Index. Pricing is supplied by Lukka; governance follows the committee-plus-methodology model S&P uses in equities.
How is the S&P Crypto Indices built?
Constituents must satisfy eligibility screens that go well beyond market capitalization: they must trade on approved venues, meet liquidity thresholds, and, decisively, be supported by S&P’s pricing partner and satisfy custody and compliance considerations. Weighting is by float-adjusted market capitalization. Stablecoins are excluded from the headline market indices.
Where the S&P Crypto Indices falls short statistically
Universe censorship is the fatal flaw
The BDM’s universe is defined not by the market but by what Lukka prices and what S&P’s committee deems suitable. Privacy coins are conspicuous casualties: Monero, persistently a top-tier cryptocurrency by capitalization and the most-used private digital cash in existence, does not appear, because US-facing data vendors and custodians have blacklisted it. The result is an index of approved crypto. Whatever that measures, it is not the cryptocurrency market. A measurement instrument that inherits the political preferences of its data vendor has surrendered its claim to objectivity before the first data point is published.
Cap-weighting produces a Bitcoin proxy
With BTC routinely 55–70% of eligible capitalization, the BDM and its LargeCap siblings move almost one-for-one with Bitcoin. An investor who wants Bitcoin exposure can buy Bitcoin at lower cost and zero methodology risk; an investor who wants market exposure gets, in a cap-weighted index, mostly Bitcoin anyway. The index answers a question nobody asked.
Backfilled history
The indices launched in 2021 with hypothetical back-tested data, and S&P’s own disclosures state that back-tested performance is constructed with hindsight and “may be considered to reflect survivor/look-ahead bias.” The CCi30 needs no such disclaimer: its record from January 2015 forward is live calculation under pre-committed rules, through the 2018 and 2022 winters.
The Dow irony
S&P Dow Jones Indices is the custodian of the Dow Jones Industrial Average, the 30-component benchmark that has defined market measurement since 1896. Thirty is the number its own house validated across a century of regimes, and it is the number the CCi30 independently derived as the statistical optimum for crypto: the minimum count for statistical significance (99% confidence, 1.11% margin of error), the maximum before the liquidity cliff. Yet S&P’s crypto shelf leads with a Top 10, a count its own flagship’s history implicitly rejects, and a BDM whose breadth extends past the point where added constituents add anything but friction. The firm that owns the precedent declined to apply it.
Can the S&P Crypto Indices be replicated by an investor?
The BDM contains a long tail of small constituents whose inclusion serves completeness of headline coverage but makes full replication costly, while the Top 10 is too narrow to diversify. Neither strikes the balance the CCi30’s 30-constituent design achieves: ~90% capitalization coverage of true cryptocurrencies with every position liquid enough to trade.
Method and sources
Methodology facts on this page come from the published documents of the provider; constituent lists change and should be re-verified before citation. The CCi30 rules are published in the methodology manual. The full comparison set is on the crypto index comparison hub, and the allocation calculator shows the CCi30 basket for any amount.