State of Wisconsin Investment Board reveals $163 million in spot bitcoin ETFs

Quick Take

  • The State of Wisconsin Investment Board revealed numerous investments in crypto entities in a Tuesday 13F filing with the Securities and Exchange Commission. 
  • The Board owns 2,450,400 shares of the ETF valued at $99,167,688 as well as 1,013,000 shares of the Grayscale Bitcoin Trust (GBTC) worth $63,687,310 at the end of March.
  • Shares from Coinbase, Marathon Digital, Riot Platforms, Block, Cipher Mining, Cleanspark and MicroStrategy are also in the Board’s portfolio. 

The State of Wisconsin Investment Board revealed in a Tuesday 13F filing that it held nearly $100 million of the iShares Bitcoin Trust, the spot bitcoin exchange-traded fund out of the investment manager BlackRock, at the end of the first quarter of 2024. 

The Board owned 2,450,400 shares of the ETF valued at $99,167,688 and 1,013,000 shares of the Grayscale Bitcoin Trust (GBTC) worth around $63,687,310 at the end of March, according to the filing with the Securities and Exchange Commission.

Shares of other cryptocurrency firms such as Coinbase, Marathon Digital, Riot Platforms, Block, Cipher Mining, Cleanspark and MicroStrategy were also in the Board's portfolio. 

The State of Wisconsin Investment Board is a Wisconsin state agency that manages investments for public retirement and other trust funds. The Board has made other crypto investments in the past and maintains investments in traditional financial investment vehicles in addition to web3 ones in this most recent 13F filing.

BlackRock's IBIT and Grayscale's GBTC are the top spot bitcoin ETFs by market share, The Block's Data Dashboard shows. 

Analyst commentary

Bloomberg's ETF analyst noted that the Board's interest in spot bitcoin ETFs seems to have come faster than expected.

"Wow, a state pension bought IBIT in first quarter," Eric Balchunas wrote on the social media platform X. "Normally you don't get these big fish institutions in the 13Fs for a year or so (when the ETF gets more liquidity) but as we've seen these are no ordinary launches. Good sign, expect more, as institutions tend to move in herds." 


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© 2025 The Block. All Rights Reserved. This article is provided for informational purposes only. It is not offered or intended to be used as legal, tax, investment, financial, or other advice.

AUTHOR

MK Manoylov has been a reporter for The Block since 2020 — joining just before bitcoin surpassed $20,000 for the first time. Since then, MK has written nearly 1,000 articles for the publication, covering any and all crypto news but with a penchant toward NFT, metaverse, web3 gaming, funding, crime, hack and crypto ecosystem stories. MK holds a graduate degree from New York University's Science, Health and Environmental Reporting Program (SHERP) and has also covered health topics for WebMD and Insider. You can follow MK on X @MManoylov and on LinkedIn.

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