Crypto index comparison, tier 2
CoinDesk 20 Alternative: CCi30 vs CoinDesk 20
The CCi30 Cryptocurrency Index is the rules-based alternative to the CoinDesk 20. This page reviews the CoinDesk 20 (CD20) and the CoinDesk Market Index (CMI) under the eight-criterion CCi30 test and compares both indices on universe, weighting, independence, track record, and investability.
What is the alternative to the CoinDesk 20?
The CCi30 Cryptocurrency Index replaces the CoinDesk 20 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
What is the CoinDesk 20?
CoinDesk Indices, heir to the venerable XBX Bitcoin price reference and now owned by the Bullish exchange group, offers the CoinDesk 20, a broad-based index “built to trade,” explicitly designed around liquidity and implementation for market makers and structured products, plus the wider CoinDesk Market Index and a family of sector (“Select”) indices with industry tagging.
How is the CoinDesk 20 built?
The CD20 selects twenty large, liquid assets using CoinDesk Benchmark Rates for pricing, applies market-cap-based weighting with caps, excludes stablecoins, and, per the published multi-asset methodology, screens for factors including US-licensure of pricing venues, with categories like memecoins ruled ineligible in certain derived indices, and custody support (e.g., Coinbase Custody) built into product variants.
Where the CoinDesk 20 falls short statistically
“Built to trade” is the tell
CoinDesk says openly what others obscure: the CD20 is optimized for market makers, derivatives, and product construction. That is a legitimate engineering goal, for a product. But an index optimized for tradability systematically differs from an index optimized for truth: it overweights venue-approved assets, excludes economically significant but institutionally awkward ones (privacy coins fail the US-licensure pricing screens categorically), and bakes implementation constraints into the definition of the market itself. The CCi30 inverts the priority: measure first, implement second.
Editorial-exchange ownership
The index family is owned by an exchange group that also owns the industry’s largest news outlet. An exchange profits from listings and flow in specific assets; a media company shapes the narrative around them; an index arbitrates which of them constitute “the market.” Concentrating all three functions under one roof is a corporate-governance case study, not a benchmark pedigree. The CCi30 has no exchange, no media arm, no order flow, no thumb available for the scale.
Ruling out memecoins by fiat
Whatever one thinks of memecoins (and the Austrian answer is: the market’s valuation is information, not error), excluding a category by editorial judgment repeats the censorship pattern. Either capitalization rules or committees do. The CD20 family chooses committees; the CCi30 chooses arithmetic.
Twenty capped-weight constituents
is closer to adequacy than the Tier 1 baskets, which makes the shortfall the more instructive. Twenty is two-thirds of the way to the statistically significant count and stops short: below n=30, the sample does not represent the market at the confidence level an allocator can defend (the CCi30’s thirty deliver 99% confidence with a 1.11% margin of error, and ~90% capitalization coverage). CoinDesk built the count its market makers could hedge, not the count the statistics require, and the caps on its weights again betray the weighting scheme’s failure.
Can the CoinDesk 20 be replicated by an investor?
Genuinely strong; this is the CD20’s design center and it shows in market-maker adoption. But recall the criterion: an index must be investable and representative. The CD20 achieves the first by sacrificing the second. The CCi30’s square-root weighting achieves comparable implementability, every constituent liquid, turnover damped by EWMA smoothing, without letting execution convenience define market truth.
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.