Winklevoss Files Spot Zcash ETF at 0.25% Fee, Undercutting Grayscale

Winklevoss Asset Services filed an S-1 registration statement with the U.S. Securities and Exchange Commission on Tuesday for a spot Zcash (ZEC) ETF, proposing a 0.25% annual management fee that would make it roughly ten times cheaper than Grayscale's existing ZCSH fund.

The proposed fund would trade on Nasdaq under the ticker WINK, with Gemini serving as custodian. The fund holds ZEC directly, giving investors spot exposure to the privacy coin without intermediary products. Cypherpunk Technologies, a Zcash treasury company, is named as an ecosystem partner in the filing. Winklevoss Capital Fund has also indicated non-binding interest in purchasing up to $100 million of shares at launch, a signal of early demand though not a firm commitment.

If approved, WINK would become the second U.S. spot Zcash ETF, following Grayscale's ZCSH. The timing is pointed. Grayscale's Zcash fund has shed $218 million in assets, a decline that coincides with intensifying fee competition across the broader crypto ETF market.

The 0.25% fee positions WINK in the low-cost bracket that reshaped Bitcoin ETF competition after the January 2024 spot approvals, when providers including BlackRock and Fidelity drove management fees down from the 1.5%-plus range that Grayscale had held for years with its Bitcoin trust. The same dynamic appears to be playing out in the Zcash segment, compressed into a much smaller addressable market.

The regulatory path is not guaranteed. Zcash uses a shielded transaction model that allows users to obscure sender, receiver, and transaction amounts on-chain. That privacy architecture has drawn scrutiny from regulators and prompted several major exchanges to delist ZEC over compliance concerns. The SEC has not yet signaled how it weighs privacy coin exposure in the ETF approval framework it applied to Bitcoin and Ethereum products. Gemini's role as custodian adds another variable: the exchange has navigated its own regulatory history, and the SEC may examine the custody arrangements closely before rendering a decision.

Demand risk is real. The $218 million outflow from Grayscale's ZCSH does not obviously suggest a market hungry for more Zcash exposure; it could equally reflect dissatisfaction with fees, broader rotation out of altcoin products, or limited institutional appetite for privacy coins at any price. Winklevoss Capital's $100 million interest figure is explicitly non-binding, and the actual seed capital that materializes at launch will be a more meaningful indicator of institutional conviction.

The filing fits a clear pattern. Since spot Bitcoin ETFs opened the door in early 2024, issuers have methodically worked down the crypto market cap ladder, with Ethereum, Solana, and now Zcash drawing formal S-1 filings. Privacy coins occupy a distinct regulatory category, and an SEC approval for WINK would carry implications beyond the ZEC market. It would effectively signal that shielded-transaction assets can clear the same compliance bar as proof-of-work and proof-of-stake networks, a precedent that would matter for Monero and other privacy-focused protocols watching from the sidelines.

For Grayscale, the competitive pressure is familiar and uncomfortable. The firm built dominant positions in crypto investment products by being first, then watched fee compression erode those positions as better-capitalized or more aggressive rivals entered. ZCSH's $218 million in outflows suggest that pattern is repeating in the Zcash segment before the market has even fully developed. Whether the Winklevoss filing accelerates that erosion or simply formalizes a competition that was already underway depends largely on what the SEC does next.