Cardano Among 21 ETF Filings That Could Introduce Staking and Altcoin Funds

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REXShares and Osprey filed 21 new crypto ETFs on Oct 4, 2025, covering major altcoins such as Cardano (ADA), Avalanche (AVAX) and Polkadot (DOT), including several staking-enabled funds; filings are currently listed as “subject to completion.”

• 21 ETF filings span large-cap and emerging altcoins, some with staking features.

• Filings are marked “subject to completion” after the SEC updated streamlined spot-ETF rules.

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Proposals include ADA + Staking, AVAX + Staking, DOT + Staking and dedicated funds for LINK, LTC, XLM.

crypto ETFs: REXShares & Osprey filed 21 altcoin ETF proposals including staking-enabled funds — read concise coverage and key takeaways.

What did REXShares and Osprey file on October 4, 2025?

REXShares and Osprey Funds jointly submitted applications for 21 cryptocurrency exchange-traded funds (ETFs), covering established altcoins and newer tokens. The filings, labeled “subject to completion,” list assets from Cardano (ADA), Avalanche (AVAX) and Polkadot (DOT) to Hyperliquid (HYPE) and Sei (SEI).

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Which assets and structures are included in the filings?

The proposals include staking-capable products such as ADA + Staking, AVAX + Staking and DOT + Staking, plus dedicated funds for Chainlink (LINK), Litecoin (LTC), Stellar (XLM) and emerging projects TAO, HYPE and SUI. Filings explicitly note that some funds are structured to incorporate on-chain staking rewards into fund returns.

Asset	Proposed Fund	Staking Included
Cardano (ADA)	ADA + Staking ETF	Yes
Avalanche (AVAX)	AVAX + Staking ETF	Yes
Polkadot (DOT)	DOT + Staking ETF	Yes

How do staking-enabled ETFs differ from standard crypto ETFs?

Staking-enabled ETFs are designed to capture on-chain staking rewards and reflect them in NAV calculations. That structure requires custodial and operational arrangements to stake holdings securely while maintaining liquidity for fund redemptions. Regulators will evaluate how staking yields are earned, reported and distributed within a regulated ETF wrapper.

Why does SEC rule change matter for these filings?

The Securities and Exchange Commission’s finalized general rules for cryptocurrency spot ETFs simplified listing procedures, reducing the need for bespoke reviews. This procedural change enabled REXShares and Osprey to submit a broad slate of proposals simultaneously, increasing the likelihood of faster processing compared with prior case-by-case approaches.

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Frequently Asked Questions

Which tokens are in the filings beyond ADA, AVAX and DOT?

Proposals list Chainlink (LINK), Litecoin (LTC), Stellar (XLM) and emerging assets including TAO, Hyperliquid (HYPE), Sei (SEI), Ethena (ENA) and SUI. The full list of 21 filings names both established and newer projects.

How soon could these ETFs launch if approved?

Timing depends on SEC review cycles and operational readiness. Under the new rules, approvals can move faster than prior bespoke reviews, but exact launch dates will be confirmed in fund prospectuses and SEC orders.

Key Takeaways

• Scale: 21 ETF applications represent one of the largest proposed single expansions of U.S. crypto ETF products.
• Innovation: Multiple funds include staking mechanics, introducing yield-bearing strategies to ETF wrappers.
• Regulatory context: SEC’s updated spot-ETF rules enabled streamlined filing submissions, but approvals remain subject to review.

Conclusion

The joint filings by REXShares and Osprey mark a potentially significant expansion of the U.S. crypto ETF landscape, targeting altcoins and staking-enabled exposure. COINOTAG will monitor SEC developments and fund prospectuses for confirmation of structures, timelines and investor protections. Stay informed as filings move through the regulatory process.

Publication: COINOTAG — 4 October 2025 | 12:00

Reporter note: Reporting is based on the filings submitted by REXShares and Osprey Funds and the SEC’s finalized spot-ETF framework. Sources referenced as plain text: James Seyffart (market analyst), Ray Dalio (market commentary), SEC rule updates.

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