Cboe Makes Third Attempt to List ARK 21Shares Bitcoin ETF

The proposed ETF, a collaboration between Cathie Wood’s Ark Invest and crypto investment product firm 21Shares, aims to list and trade on the Cboe BZX exchange

article-image

Ariel Bravy/Shutterstock, modified by Blockworks

share

Cboe Global Markets has made its third attempt to secure regulatory approval for a spot Bitcoin ETF from the US Securities and Exchange Commission (SEC). 

The ARK 21Shares Bitcoin ETF, if approved, would allow investors to gain exposure to Bitcoin without owning the digital currency directly.

The proposed ETF, a collaboration between Cathie Wood’s Ark Invest and crypto investment product firm 21Shares, aims to list and trade on the Cboe BZX exchange, Reuters reported on Tuesday. It marks the latest effort by Cboe, following two previous unsuccessful attempts to list and trade the same ETF. 

Cboe BZX Exchange is one of the largest US equities market operators on any given day, clocking $1.4 billion in 24-hour trade volume. It is owned and operated by Cboe Global Markets, which also owns the Chicago Board Options Exchange and other exchanges around the world.

The operator has made attempts to list and trade the ARK 21Shares Bitcoin ETF in the past, including in May 2022 and August 2021. They were both rejected on the grounds the product did little to prevent fraud, according to the SEC.

The regulator has historically been cautious about such proposals, citing concerns over potential market manipulation and the lack of transparency in the crypto market.

To date, the SEC has rejected more than a dozen other proposals for spot bitcoin ETFs over a number of years, including from prominent firms such as Grayscale, Fidelity, and NYDIG. 

Despite the regulator’s reservations, the increasing demand for bitcoin and other digital assets has fueled a renewed push for regulatory approval of crypto-based financial products.

That’s led to the creation of US-based bitcoin futures ETFs, most notably from issuers Proshares, Valkyrie and VanEck, which have been available for nearly two years.

But a spot bitcoin ETF remains elusive. Comparable products are available in developed markets outside the US, and the SEC has faced criticism for its intransigence, to the point where Grayscale is suing the agency.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Hilton Park Lane

Tues - Wed, November 10 - 11, 2026

DAS London is a two-day summit at the Hilton Park Lane in London featuring conversations between the builders, allocators, and policy makers who are shaping the trajectory of the digital asset ecosystem in the UK, Europe, and North America.

Marina Bay Sands Singapore

Wednesday, October 07, 2026

DAS Asia is a a single-day summit at Marina Bay Sands Singapore featuring conversations between the builders, investors, and global leaders are shaping the trajectory of the digital asset ecosystem in Asia & North America.

recent research

Sponsored Article Template - Button (1).png

Research

Button is productizing the synthesis stack for discretionary traders. As market data becomes cheap and ubiquitous, the edge is shifting from access to synthesis: who can turn feeds, research, positions, and market context into a decision fastest. This report explores why AI is better suited to augmenting traders than replacing them, and how Button is building the workspace for that new market structure.

Newsletter

The Breakdown

Decoding crypto and the markets. Daily, with Byron Gilliam.

Blockworks Research

Unlock crypto's most powerful research platform.

Our research packs a punch and gives you actionable takeaways for each topic.

SubscribeGet in touch

Blockworks Inc.

133 W 19th St., New York, NY 10011

Blockworks Network

NewsPodcastsNewslettersEventsRoundtablesAnalytics