Types of Crypto Index Funds: Holdings, Weighting & Structures

The main types of crypto index funds are broad-market funds that hold the largest cryptocurrencies, sector or thematic funds that focus on one corner of the crypto economy, and multi-asset funds that mix crypto with tokenized stocks, ETFs or gold. Funds of each type also differ in how they weight assets and in their legal structure.

What are the main types of crypto index funds?

Sorting funds by what they hold is the most useful first cut, because holdings drive most of the risk. The table compares the three main types; the sections below explain each one. For how any of these funds actually buys, holds and rebalances assets, see our crypto index fund guide.

What is a broad-market crypto index fund?

A broad-market crypto index fund tracks the largest and most liquid cryptocurrencies, aiming to represent the crypto market as a whole. Two US-listed examples show the approach. The Grayscale CoinDesk Crypto 5 ETF tracks the CoinDesk 5 Index, the five largest and most liquid assets in the CoinDesk 20, and rebalances quarterly. The Bitwise 10 Crypto Index ETF tracks the ten largest crypto assets that pass its screens, weighted by free-float market capitalization and reconstituted monthly.

Broad-market funds are simple to understand, but "broad" is relative. At 31 December 2025, bitcoin was 75.11% and ether 15.41% of the Bitwise 10 Large Cap Crypto Index. A broad-market crypto fund is therefore mostly a bitcoin-and-ether fund with smaller positions in other large assets. These funds suit investors who want market-level crypto exposure without choosing between coins, and who accept that the result will track bitcoin closely.

What is a sector or thematic crypto index fund?

A thematic crypto index fund holds tokens tied to one part of the crypto economy. Common themes include decentralized finance (lending and exchange protocols), smart-contract platforms (layer-1 and layer-2 networks), and tokens linked to artificial-intelligence or data-infrastructure projects. The appeal is targeted exposure to a trend without picking the single winning project.

Thematic funds carry more risk than broad-market funds. Their holdings are usually smaller and less liquid, so prices swing more and trading costs are higher. Themes also go in and out of fashion, and a fund can keep holding a theme long after interest has faded. If you buy one, treat it as a satellite position next to a broader core holding, and check how the fund decides which tokens qualify.

What is a multi-asset crypto index fund?

A multi-asset crypto index fund holds crypto alongside tokenized traditional assets, such as tokenized shares, ETFs, gold or silver. Tokenization makes this possible inside one on-chain portfolio, funded with one currency. The aim is a mix in which crypto is only part of the risk, rather than all of it.

The trade-off is new kinds of risk. Tokenized stocks issued by Ondo Global Markets, for example, give economic exposure to the underlying security rather than direct ownership, with no shareholder voting rights, and Ondo restricts who may hold them, including US persons. Tokenized gold depends on its issuer and vault. Read how Ondo tokenized stocks work and what tokenized gold is before buying a multi-asset fund. A lower crypto share can reduce swings, but stocks and gold can fall too, so a multi-asset fund is not low risk by default.

How do weighting methods change a crypto index fund?

Two funds with the same holdings can behave very differently depending on how they weight them:

• Market-cap weighting sizes each holding by its market value. It needs little trading but concentrates in the largest assets.
• Capped market-cap weighting applies a ceiling to any single asset and shares out the excess. It keeps a large-cap tilt with less concentration.
• Equal weighting gives every holding the same share. Smaller assets have more influence, and the fund must rebalance more often.
• Fixed target allocation uses percentages set by the provider's methodology, often with position caps. The mix is predictable, but it reflects the provider's choices.

Weighting interacts with rebalancing: the further a method departs from market value, the more trading it needs to stay on target. Ask how often a fund rebalances, and whether rebalancing is live today.

Which legal structures do crypto index funds use?

• US-listed exchange-traded products. Since 17 September 2025, US exchanges can list spot commodity products, including crypto ones, under generic listing standards approved by the Securities and Exchange Commission. You buy shares through a broker and a custodian holds the assets.
• Platform funds. You buy units directly from a provider, which holds the assets in its own custody arrangement. Many are not registered with a securities regulator.
• On-chain baskets and vaults. Holdings sit in a smart-contract wallet whose balance anyone can check on a block explorer. Visibility does not equal regulatory protection.
• Do-it-yourself baskets. You buy and rebalance each asset yourself, which gives full control and full responsibility.

For named products compared side by side, with fees and minimums, see our review of the best crypto index funds.

Which types of crypto index fund does Wealtii offer?

How do you choose the right type of crypto index fund?

Start from your goal and time horizon, not from the fund list. If you want market-level crypto exposure, a broad-market fund is the natural core. If you have a strong view on one theme and can afford to lose that stake, a thematic fund can sit beside it. If you want crypto to be only part of one holding, a multi-asset fund may fit, provided you understand the tokenized assets inside it and are eligible to hold them. If you are just starting out, our guide to crypto index funds for beginners walks through the first decisions.

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