Grayscale Investments has filed Amendment No. 3 to its S-1 registration statement with the U.S. Securities and Exchange Commission for the proposed Grayscale BNB ETF, advancing the firm’s bid to bring direct BNB exposure to U.S. markets under the ticker GBNB.
The June 3 filing, registered under SEC file number 333-292896, represents the third amendment to Grayscale’s original S-1 and continues the firm’s iterative response to SEC feedback. The Trust intends to list its Shares on the Nasdaq Stock Market LLC under Nasdaq Rule 5711(d), which permits the listing and trading of Commodity-Based Trust Shares under Nasdaq’s generic listing standards.
Notably, the amendment still does not disclose the ETF’s management fee—a recurring detail that investors and analysts continue to watch as the product moves closer to launch.
What’s in the Filing
The structural details remain consistent with Amendment No. 2 filed on May 15. Grayscale Investments Sponsors, LLC is the sponsor of the Trust, with CSC Delaware Trust Company serving as trustee. Bank of New York Mellon acts as both transfer agent and administrator. BitGo Bank & Trust, N.A. is the custodian.
The Trust’s investment objective is for the value of the Shares to reflect the value of BNB held by the Trust as determined by reference to the CoinDesk BNB Benchmark Rate, less the Trust’s expenses and other liabilities. Shares will be issued in baskets of 10,000 units, with creations and redemptions permitted via in-kind transactions in exchange for BNB or via cash orders.
The filing also confirms that staking will not be enabled at the commencement of the offering. However, the registration statement preserves a “Staking Condition” provision that could allow staking rewards to be incorporated at a later date if certain conditions are satisfied. This mirrors the approach Grayscale has taken with its proposed Hyperliquid Staking ETF and other recent altcoin ETF filings.
Grayscale also disclosed that the sponsor, acting as the seed capital investor, purchased $100 worth of Seed Shares on April 22, 2026 — comprising 4 Shares at a per-share price of $25.00. Those Seed Shares are anticipated to be redeemed for cash in connection with the listing of the Shares on Nasdaq.
Former blockchain engineer at Fidelity, Matthew Pinnock, said, “Grayscale’s latest amendment suggests the BNB ETF continues to move through the regulatory review process rather than stalling, which is generally viewed as a constructive signal by the market. Multiple amendments mean there’s an ongoing engagement between issuers and regulators as key questions are addressed.”
The Missing Fee Detail
The absence of a disclosed management fee continues a pattern Grayscale has established across its recent altcoin ETF filings. When the firm filed Amendment No. 5 for its Hyperliquid Staking ETF on May 29, Bloomberg analyst James Seyffart specifically flagged that Grayscale had still not disclosed the management fee, calling that detail one that “investors continue to watch.”
For competitive context, Bitwise’s BHYP Hyperliquid ETF launched with a 0.67% annual management fee, establishing a benchmark for what newer altcoin ETF products are charging in 2026. Grayscale has historically positioned its ETF fees at the higher end of the market—its Bitcoin Trust (GBTC) launched at 1.5% before facing competitive pressure from cheaper alternatives—but the firm has not yet publicly committed to a fee structure for either GBNB or its HYPG product.
The pattern of late fee disclosure typically signals that issuers are waiting to assess competitive dynamics at or near launch, rather than committing to a price that competitors could undercut.
The VanEck Head Start
The June 3 amendment lands at a critical competitive moment. On May 28, 2026, VanEck launched the first U.S. spot BNB ETF on Wall Street, securing the first-mover advantage in the U.S. BNB ETF market. VanEck’s product represents the first regulated direct BNB exposure available to U.S. institutional and retail investors through a traditional exchange-traded structure.
For Grayscale, the consequence is that GBNB — assuming it receives SEC approval and Nasdaq listing—would arrive as the second spot BNB ETF on the market. That ordering matters in ETF markets, where first-movers typically capture disproportionate share of initial inflows and often retain that lead through liquidity advantages and brand familiarity.
That said, Grayscale’s competitive position is not without strengths. The firm manages over $35 billion in digital assets and has demonstrated that converting existing trusts into ETFs can generate significant institutional inflows, as it did with GBTC in January 2024 and ETHE in May 2024. Grayscale also has a deeper bench of altcoin trust products that could be converted under similar pathways — the firm’s Q1 2026 “Assets Under Consideration” list includes 36 altcoins beyond its existing trust offerings, reinforcing the breadth of its potential ETF pipeline.
The Broader Altcoin ETF Race
The Grayscale BNB amendment is part of a broader sprint by major issuers to bring altcoin-linked ETFs to U.S. markets. The same month that VanEck launched its BNB ETF, 21Shares launched its THYP Hyperliquid ETF on Nasdaq on May 12, with Bitwise’s BHYP following on NYSE Arca on May 15. The two HYPE-linked products logged a combined opening-day volume of $6.11 million — the strongest altcoin ETF debut of 2026.
Grayscale’s Zcash ETF filing — the first ever for a privacy-focused cryptocurrency — represents another front in the firm’s altcoin ETF push. The firm’s pending products span multiple sectors: Layer 1 utility tokens (BNB, AVAX, SUI), DeFi infrastructure tokens (HYPE), and privacy assets (ZEC).
What Comes Next
The remaining unknowns for GBNB are the management fee, the final effective date for the registration statement, and confirmation from Nasdaq that the Shares meet all applicable listing requirements. The Trust will not commence trading unless and until Nasdaq confirms eligibility under Rule 5711(d)(iv).
Grayscale has not publicly indicated a target launch date. For ETF watchers, the next data points to monitor are SEC comments on the Amendment No. 3 filing, any subsequent amendment that introduces the fee disclosure, and Nasdaq confirmation of listing eligibility. The combination of those three signals typically indicates that an ETF is days to weeks away from active trading.
For now, GBNB joins a growing roster of altcoin ETFs working their way through the SEC pipeline—with VanEck already having broken the BNB ground earlier this week and Grayscale tracking close behind.
