The REX-Osprey BNB + Staking ETF is a proposed U.S. exchange-traded fund that would allocate at least 80% to BNB and seek staking yield (estimated 1.5%–3% annually). It plans to stake holdings while keeping illiquid assets below 15% and uses Anchorage Digital Bank as custodian.
-
BNB staking yield: estimated 1.5%–3% annually for validators.
-
Fund would allocate ≥80% to BNB or Cayman subsidiary exposure; remainder in related ETFs.
-
Custodian: Anchorage Digital Bank; adviser must keep illiquid assets under 15% for redemptions.
BNB staking ETF: REX-Osprey BNB + Staking ETF targets BNB exposure and staking yield — read key details and next steps.
What is the REX-Osprey BNB + Staking ETF?
The REX-Osprey BNB + Staking ETF is a proposed exchange-traded fund filed with the U.S. Securities and Exchange Commission that would hold predominantly BNB and seek staking yield. The fund would stake BNB (if liquidity rules permit) and allocate at least 80% of assets to BNB or BNB exposure via a Cayman Islands subsidiary.
How would the fund capture BNB staking yield?
The filing states the fund intends to stake its BNB to generate network yields estimated at 1.5%–3% annually. Staking would be executed only if the adviser can keep illiquid assets below the regulatory 15% threshold, preserving investor redemption capability. Anchorage Digital Bank is named as custodian for on-chain assets and liquid staking tokens.
BNB Chain reportedly offers between 1.5% and 3% yield for staking its native token BNB, which may sweeten the pot for investors.
REX Shares and Osprey Funds (REX-Osprey) submitted the ETF prospectus to the SEC as asset managers increase proposals for crypto ETFs that combine spot exposure with yield strategies. The prospectus indicates the fund may invest the remaining portfolio in other exchange-traded products to augment BNB exposure while maintaining liquidity constraints.
The proposed ETF differs from Osprey’s existing BNB Chain Trust, launched in 2024, which targeted accredited investors and carried a $10,000 minimum. The ETF structure is intended to broaden access to retail investors if approved by regulators.
REX-Osprey BNB + Staking ETF Filing excerpt. Source: SEC.gov
Why does staking yield matter for an ETF?
Staking yield directly increases potential total return for holders beyond price appreciation. For BNB, validator rewards on the Binance Chain (proof-of-staked-authority) are estimated at 1.5%–3% annually. Including staking yield in an ETF could make BNB products more competitive versus spot-only funds.
How does this filing compare to other BNB ETF efforts?
VanEck filed a BNB ETF in May 2025 also seeking to capture staking yield, marking growing industry interest in yield-bearing crypto products. The REX-Osprey filing follows that trend and proposes custodial and staking arrangements designed to meet U.S. regulatory liquidity standards.
Industry data show strong investor appetite for crypto ETFs. According to SoSoValue.com, Bitcoin ETFs recorded monthly inflows between $3 billion (April) and $6 billion (July), while Ether ETFs saw $5.4 billion in July and $3.7 billion so far in August. During the week of Aug. 15, combined BTC and ETH ETF trading volumes set new records, with Ether ETFs trading about $17 billion during one week, per market commentary in financial reporting.
Ether spot ETF monthly inflows. Source: SoSoValue.com
When could investors see this ETF approved?
There is no guaranteed timeline. SEC review cycles vary and hinge on regulatory questions around custody, staking, liquidity and investor protections. Market participants and prior filings (VanEck, Osprey) suggest firms are preparing detailed operational controls to address SEC concerns.
| Metric | BNB (staked) | BTC/ETH ETFs |
|---|---|---|
| Estimated staking yield | 1.5%–3% | N/A (spot ETFs) |
| Recent ETF inflows (monthly) | — | BTC: $3B–$6B; ETH: $3.7B–$5.4B (sources: SoSoValue.com) |
| Custody plans | Anchorage Digital Bank | Varies by issuer |
What are the regulatory safeguards in the filing?
The filing highlights a 15% cap on illiquid assets to preserve redemptions and states staking will occur only if liquidity thresholds are met. The adviser’s obligation to limit illiquid holdings is a primary mechanism to balance yield capture with marketability.
Frequently Asked Questions
How to evaluate a staking ETF before investing?
1. Review the prospectus for staking mechanics and illiquid-asset limits. 2. Confirm custodian and operational controls. 3. Compare expected yield and fees to spot-only alternatives. 4. Check regulatory disclosures and auditor statements.
Key Takeaways
- Staking yield potential: BNB staking is estimated at 1.5%–3%, which the ETF aims to capture.
- Liquidity safeguards: Staking conditioned on keeping illiquid assets under 15% to protect redemptions.
- Market context: Rising ETF inflows in BTC and ETH show investor appetite for accessible crypto products; BNB staking ETFs are the next wave.
Conclusion
The REX-Osprey BNB + Staking ETF filing represents a significant step toward retail access to yield-bearing BNB exposure. If approved, it could combine spot BNB ownership with validator rewards while preserving liquidity safeguards. Investors should read filings closely and monitor SEC review timelines for next developments.
