Bitwise adds Fold and Bitdeer to Bitcoin Corporations ETF

Bitwise has announced that its Bitcoin Standard Corporations Index has two new entrants — Fold Holdings and Bitdeer Technologies.

Bitwise Investments, a crypto index and exchange-traded funds provider, has added Fold Holdings and Bitdeer Technologies to the Bitwise Bitcoin ( BTC ) Standard Corporations ETF.

The asset manager announced their inclusion via a post on X on March 25, 2025.

New additions to the fund

Fold Holdings is a Phoenix-based Bitcoin financial services firm founded in 2019. Meanwhile, Bitdeer Technologies is a Nasdaq-listed Bitcoin miner with operations in the United States, Norway and Bhutan. Fold and Bitdeer join the Bitwise fund targeted at Bitcoin-heavy companies just days after its launch.

With the two new additions, the ETF, which trades under the ticker OWNB, now includes 22 companies that hold at least 1,000 BTC in their treasury.

“The fund does not invest directly in bitcoin or indirectly through derivatives that reference bitcoin,”Bitwise noted.

According to Bitwise, the index tracks notable companies with Bitcoin as treasury assets, including Michael Saylor’s Strategy, bitcoin mining firm MARA Holdings, and Elon Musk’s Tesla.

The top 10 companies in the ETF also include Riot Platforms, Metaplanet, and Semler Scientific. Metaplanet has been one of the more aggressive Bitcoin buyers, with its haul of 3,350 BTC reflecting a strategy similar to that of Strategy, formerly MicroStrategy.

With OWNB now including 22 companies, the ETF collectively holds more than 648,000 BTC worth over $54 billion, accounting for about 3.2% of the total Bitcoin supply.

Notably, Strategy held 506,137 BTC acquired for over $33.7 billion as of March 25, giving it the highest weight in the Bitwise Standard Corporations Index at 22.64%. MARA and Riot follow with weightings of 10.67% and 10.04%, respectively.

Metaplanet is weighted at 5%, ranking as the fourth largest holding.

Per Bitwise’s OWNB website, Fold holds 1,485 BTC worth roughly $130 million, while Bitdeer holds 1,039 BTC worth about $92 million.