Grayscale Sui Staking ETFGSUI

A new ETF-style wrapper has hit Nasdaq this week, but the ticker GSUI doesn’t trade staked SUI tokens directly-it trades shares in a grantor trust that holds those tokens and stakes them on behalf of shareholders. The exchange page shows the fund listed and trading, but the real plumbing is in the trust’s unstaking queue and daily staking fee calculations, not the ticker symbol. (source: Nasdaq, https://www.nasdaq.com/market-activity/etf/gsui)

The GSUI wrapper is a grantor trust, not a traditional ETF, so its shares represent beneficial ownership of staked SUI tokens rather than a basket of equities. The trust holds SUI, stakes it, and accrues rewards, then passes the economic exposure to shareholders via the trust’s structure. The Nasdaq listing is the public face; the unstaking queue is where liquidity providers wait, and the daily staking fee is the trust’s tollbooth. (source: Nasdaq, https://www.nasdaq.com/market-activity/etf/gsui)

The trust’s fee mechanics are spelled out in Amendment No. 2 to its declaration of trust: each business day, the sponsor takes a staking fee equal to a dollar amount derived from the basket amount and the number of baskets created, multiplied by the staking fee rate. The figure isn’t a headline number-it’s buried in the trust agreement’s arithmetic, but it’s the engine that keeps the lights on in the trust’s virtual filing trail stack. (source: Form of Amendment No. 2 to the Second Amended and Restated Declaration of Trust and Trust Agreement, https://www.sec.gov/Archives/edgar/data/2034012/000203401226000019/gsui-ex4_1.htm)

The trust’s tax posture hinges on a 2025 IRS revenue procedure that offers a staking safe harbour for grantor trusts listed on national exchanges. The 2023 staking guidance remains in force, meaning staking rewards can still be taxable income unless the safe harbour applies. The trust’s materials cite both, but the safe harbour only shields if the trust’s structure and listing meet the IRS’s conditions-not a given, even with a Nasdaq ticker. (source: Material U.S. Federal Income Tax Consequences, https://www.sec.gov/Archives/edgar/data/2034012/000203401226000019/gsui-ex99_1.htm)

The liquidity provider agreement clarifies that staking rewards accrued during delayed deliveries belong to the trust, not the provider. Providers can help defend the trust’s position, but only if they opt in-and the agreement makes it clear they have no right to those rewards. It’s a reminder that the wrapper’s liquidity promises don’t extend to the underlying staking economics. (source: Form of Liquidity Provider Agreement, https://www.sec.gov/Archives/edgar/data/2034012/000119312526214622/sui-ex10_1.htm)

For context on how this wrapper sits in the broader SUI ecosystem, the Nasdaq page tracks GSUI’s market activity, but it doesn’t reveal the unstaking queue’s length or the trust’s actual SUI holdings. Those details live in the trust’s filings and agreements, not the ticker page. (source: Nasdaq, https://www.nasdaq.com/market-activity/etf/gsui)

The SEC’s EDGAR search confirms the trust’s filings are live, but it doesn’t surface the unstaking queue’s status or the daily staking fee’s dollar impact. Those figures are hidden in the trust’s agreements and tax disclosures, not the exchange page. (source: SEC EDGAR fund search for GSUI, https://www.sec.gov/edgar/search/#/q=GSUI)