- REX-Osprey files a post-effective amendment to register a BNB + Staking ETF targeting a Cboe BZX listing.
- U.S. Ether spot ETFs record fresh multi-day net inflows in late August, suggesting renewed demand.
REX-Osprey has filed for a BNB + Staking ETF with the U.S. Securities and Exchange Commission on August 26, 2025, positioning the product for effectiveness 75 days after filing under Rule 485(a)(2).
Filing targets Cboe BZX listing and 75-day Rule 485(a)(2) timeline
The prospectus identifies the fund as the REX-Osprey BNB + Staking ETF and indicates an intended listing on Cboe BZX with the trading symbol to be announced. The registration is a post-effective amendment on Form N-1A for ETF Opportunities Trust.
The filing states the investment objective as one times the performance of BNB, before fees and expenses, plus staking rewards associated with BNB. The document outlines a hybrid exposure model.
The fund may hold BNB directly and through a wholly owned Cayman Islands subsidiary and may also allocate to non-U.S. exchange-traded products that provide BNB exposure. The structure allows the adviser to manage on-chain positions while observing the fund’s liquidity constraints.
Staking is central to the strategy. The fund intends to delegate BNB to validators and to use liquid staking protocols while managing liquidity so that no more than 15 percent of net assets are deemed illiquid given the current seven-day unbonding period on BNB Chain.
As a reference point for current market conditions, BNB Chain’s official page shows an advertised APY of up to 1.41 percent at the time of writing, which will vary over time with network parameters.
Ether funds post renewed inflows as sponsors expand staking-linked filings
The filing arrives alongside a pick-up in activity across U.S. crypto exchange-traded products. Spot Ether funds have recorded consecutive daily net inflows in late August, including an estimated 443.9 million dollars on August 25, according to SoSoValue figures cited by market data outlets.
The renewed buying follows a volatile start to the month and contrasts with weaker flows in some Bitcoin products. REX and Osprey have pursued staking-enabled products across multiple networks this year.
Earlier submissions covered ETH and SOL strategies within the same trust structure, underscoring a template that combines direct token holdings, a Cayman subsidiary, and the use of external ETPs for supplemental exposure.
Operational details in the BNB prospectus will be in focus for institutional allocators. These include cash creations and redemptions at the creation-unit level, the role of a crypto custodian in validator delegation, and fee arrangements where the adviser bears most fund expenses other than advisory fees and specified extraordinary costs.
The fund’s daily holdings disclosure and standard ETF trading mechanics on the secondary market are consistent with existing crypto equity wrappers.
The SEC has not approved or disapproved the securities described in the filing. The proposal’s timeline and final parameters, including the trading symbol, remain subject to the effectiveness of the post-effective amendment and exchange listing processes.
At the time of press, BNB (Binance Coin) is trading at USD 868.18 (+1.11%), having moved between a 24‑hour low of USD 851.91 and a high of USD 872.36.


