FTSE Russell will become the index provider behind seven of 21Shares’ US-listed crypto exchange-traded funds starting at market open on August 27 Thursday, under a global partnership the two companies confirmed this week. 

The switch covers the ARK 21shares Bitcoin ETF, along with 21Shares’ Ethereum, Solana, XRP, Sui, Dogecoin, and Polkadot funds. Duncan Moir, President at 21shares, said the deal ties the firm’s products to an index provider that already benchmarks roughly $20 trillion in global assets, including the Russell 2000 and FTSE 100.

Seven ETFs Get New FTSE Indexes

Each fund is moving to a matching FTSE Russell digital asset index. ARKB now tracks the FTSE Bitcoin Index, TETH tracks the FTSE Ethereum Index, and TSOL, TOXR, TSUI, TDOG, and TDOT follow their respective FTSE indexes. The 21Shares Hyperliquid ETF already used a FTSE index before this rollout, so it isn’t part of the change.

This US rollout follows a transition 21Shares completed in March 2026, when its core European and Australian Bitcoin, Ethereum, and Solana products moved to FTSE Russell benchmarks first. 

Fiona Bassett, CEO of FTSE Russell, said the partnership reflects years of work building rules-based digital asset benchmarks, and 21Shares’ FTSE Crypto 10 Index ETF already runs on a FTSE-administered index, giving the firm a working template for the switch.

Fund Structure, Fees, and Custody Stay Untouched

Nothing changes about what investors own. The underlying asset exposure, fund legal structure, custodian, exchange listing, and fee schedule stay the same for every affected fund, and the transition happens on a prospective basis so NAV history stays intact. 

This one echoes what BlackRock did when it built a Bitcoin premium income ETF around a different pricing structure rather than a different Bitcoin exposure, a reminder that issuers can rework the plumbing under a fund without touching what the fund holds.

The First Trading Day Under FTSE Pricing

The real test comes when US markets open Thursday. Since the switch applies going forward rather than retroactively, investors will get their first look at how ARKB, TETH, and the other affected funds trade under FTSE Russell’s reference prices instead of their prior benchmarks. 

Moir noted that global crypto ETP and ETF assets have already passed $106 billion, a figure worth watching as more issuers weigh similar benchmark moves.

What this means for you: If you hold shares in ARKB, TETH, TSOL, TOXR, TSUI, TDOG, or TDOT, your investment itself hasn’t changed, only the index used to calculate its reference price has.

This article is for informational purposes only and does not constitute financial advice. Do your own research before making any investment decisions.