The Privacy ETF Nobody Was Supposed to Get Gathered $1 Billion in 30 Days — Then Winklevoss Filed a 0.25% Rival

The money arrived before the fee war. Grayscale’s Zcash ETF gathered more than $1 billion during its first 30 trading days, according to the firm’s trading and capital markets executive Krista Lynch (The Block). A privacy coin had found a substantial audience inside the American brokerage account.

Then the flow reversed. ZCSH recorded approximately $59 million in net withdrawals across October’s first four trading sessions (24/7 Wall St.). Into that pause stepped Winklevoss Asset Services, filing its proposed rival on October 6, 2026, with an annual sponsor fee of 0.25% (SEC filing).

The contest now reaches beyond demand for ZEC. It tests how much investors will pay for the wrapper, what protections accompany it, and whether a successful launch can become a durable franchise.

A billion-dollar launch meets a stalled flow tape

ZCSH began trading on NYSE Arca on August 25, 2026, becoming the first ETP worldwide to offer spot ZEC exposure (Grayscale announcement).

Speaking at Token2049 in Singapore, Lynch placed its launch in the top 1% of ETFs introduced over the preceding decade when ranked by assets gathered in their opening month (The Block). That is a claim about the strength of an opening, not a promise of continuing subscriptions.

The subsequent snapshot was different: approximately $876 million in fund assets, no fresh inflows since September 22, and a separate $30 million withdrawal on September 30 (24/7 Wall St.). Cumulative money gathered and current assets measure different things. Redemptions remove assets; changes in ZEC’s market value also change what the remaining holdings are worth. Subtracting the latest fund size from the launch total does not produce a reliable redemption figure.

Nor does an ETF subscription create a price floor. Fund creations and redemptions need not coincide with the timing of underlying spot transactions. The flow report and the coin chart are related records, but they are not synchronized explanations of every price move.

That distinction matters after September’s roughly 97% advance and the cycle high of $1,693 on September 26 (ETHNews). The launch established demand for access. The next phase tests whether that demand persists after the initial rush.

A fee one-tenth as large changes the argument

Grayscale charges 2.5% annually (Yellow). WINK proposes 0.25% (SEC filing). The challenger is offering the same underlying asset exposure at one-tenth of the headline sponsor charge.

On a $10,000 position maintained for a year, the simple fee comparison is approximately $250 versus $25, assuming the position’s value stays constant for the calculation (Grayscale fee; WINK proposed fee). Those amounts describe sponsor fees, not a forecast of investment returns.

WINK’s proposed charge accrues daily in ZEC and is payable monthly in ZEC or cash. The sponsor can waive some or all of it. It also assumes ordinary operating expenses without a cap and covers the blockchain transaction costs associated with fee payments (SEC filing).

The incumbent’s defense is the market already operating around its shares: liquidity, options, and established authorized participants. ZCSH options began trading on NYSE Arca on September 8 (Grayscale SEC exhibit).

ZCSH’s 3-for-1 forward share split, with a September 28 record date and split-adjusted trading effective September 30, 2026, lowered the market price per share while preserving each shareholder’s proportional ownership (The Block).

The competitive implication is straightforward. Lower recurring expenses strengthen the challenger’s pitch to long-term holders. Existing trading infrastructure strengthens the incumbent’s pitch to investors who value an established market. The fee gap creates pressure; it does not establish that assets have already migrated.

What WINK has filed—and what remains blank

WINK’s Form S-1, filed on October 6, 2026, describes a proposed Nasdaq product, not a live trading opportunity. Its preliminary prospectus remains incomplete, and the registration statement has not become effective. There is no announced listing date (SEC filing).

The trust is organized in Delaware, with Winklevoss Asset Services as sponsor and CSC Delaware Trust Company as trustee. Cypherpunk Technologies serves as its Zcash ecosystem partner, assisting with coinholder polling, voting, and protocol advice. The proposal uses cash subscriptions and redemptions and does not employ leverage or derivatives (SEC filing).

Key operating details remain unfilled: the pricing benchmark and underlying index, basket size, seed investor and capital, and several service providers. Those blanks leave investors without the complete operating design needed to assess the finished product.

Winklevoss Capital Fund and affiliates have expressed interest in purchasing up to $100 million of shares, but that indication is nonbinding (SEC filing). It is neither funded seed capital nor an asset balance. Treating it as money already secured would repeat the same mistake as treating cumulative fundraising as current assets.

The regulatory opening sells exposure to privacy

On October 7, 2026, ZEC traded around $1,365, roughly 19% below its September 26 high of $1,693. Its market capitalization stood at approximately $23.08 billion, ranking ninth after overtaking Hyperliquid. That valuation followed a February low near $193 and a rally that began in mid-August with a breakout from a ten-week trading range at $484 (ETHNews).

A separate regulatory development helped clear the backdrop for Zcash ETF access. On August 31, 2023, the Zcash Foundation received an SEC subpoena in an inquiry designated “In the Matter of Certain Crypto Asset Offerings (SF-04569).” More than two years later, on January 14, 2026, the Foundation announced that the SEC had concluded its review and informed it that the agency intended to close the matter without recommending enforcement action or requiring changes. The announcement reported no fine or finding of wrongdoing (Zcash Foundation). The outcome removed a specific investigative overhang for the Foundation; its scope remains limited to that organization, with the broader regulatory treatment of privacy coins a separate question.

The SEC approved generic listing standards for Commodity-Based Trust Shares on September 17, 2025 (SEC announcement). Qualifying products can use those standards without a separate product-specific exchange rule-change filing under Section 19(b) (SEC announcement). This removes a procedural hurdle; it does not make an unfinished registration statement effective.

Bitwise has also filed for a Zcash ETF, placing WINK among at least three applicants (The Block). Competition is therefore extending beyond the original launch.

Yet the brokerage product delivers a narrower experience than the network. Zcash supports optional shielding of transaction participants and amounts. ZCSH holds its coins at transparent addresses and does not use that privacy functionality (crypto.news).

For the regulated custody model described here, visible balances support verification, auditing, and sanctions screening. The investment thesis can rest on demand for private transactions while the fund’s own holdings remain observable. Owning ETF shares provides exposure to the price of a privacy asset; it does not provide the asset’s shielded transaction capability. A brokerage position does not become a private on-chain wallet.

The American account comes with distinct tax and custody rules

The ETF label does not erase the legal structure. WINK is not registered under the Investment Company Act of 1940, so shareholders do not receive that statute’s fund protections. Its sponsor is not acting as a registered investment adviser and is not subject to an investment adviser’s fiduciary standard. The trust also falls outside the commodity-pool framework (SEC filing). A familiar ticker can sit on top of an unfamiliar allocation of responsibilities.

Tax treatment introduces another distinction. Spot crypto ETPs commonly use a grantor-trust structure, resembling the framework used by gold trusts. For federal income-tax purposes, investors are treated as proportionately owning the underlying assets, with trust income and expenses allocated according to their holdings. WINK’s filing describes that intended treatment (SEC filing).

Consequently, a trust’s small disposal of ZEC to fund its sponsor charge can create a taxable capital gain or loss for a shareholder who has sold no shares. The investor’s brokerage position can remain untouched while the underlying trust generates tax activity. Annual grantor-trust tax information addresses those allocations. The practical issue is the distinction between holding the security continuously and having no taxable activity at all.

A sale of ETF shares follows securities reporting through Form 1099-B, with capital-gains treatment; a holding period exceeding one year can qualify for long-term treatment (SEC tax discussion).

Form 1099-DA concerns digital-asset broker reporting and should not be conflated with reporting the ETF-share sale. Gross-proceeds reporting applies to covered digital-asset transactions beginning January 1, 2025; basis reporting begins for certain sales from January 1, 2026 (IRS instructions). Acquisition dates and cost records remain necessary to establish the investor’s own tax position (IRS digital-asset guidance).

Custody carries its own allocation of trust. WINK names Gemini Trust Company, a sponsor affiliate chartered and supervised by NYSDFS. The filing acknowledges that the custody agreement was not negotiated between independent parties. Regulatory supervision does not create FDIC insurance, and the custodian’s fiduciary status does not change the sponsor’s separate legal obligations (SEC filing).

The proposed storage arrangement uses segregated cold-wallet addresses with balances verifiable on the Zcash blockchain. The clearing-account language separately leaves open the use of an omnibus hot wallet. Those provisions describe different custody functions; the cold-storage description alone does not capture the entire operational arrangement (SEC filing).

The next test is execution

The next milestones are concrete: amended registration documents, SEC effectiveness, Nasdaq listing authorization and notice, and the actual start of trading. The amendments will show whether WINK fills its operational blanks while retaining its proposed economics. Until those steps occur, the fee challenge exists in a filing, not in an executable brokerage order.

Meanwhile, ZCSH’s flows provide a live reading of demand for the existing wrapper. Renewed subscriptions would strengthen the case that the launch attracted a lasting audience. Continued withdrawals would sharpen the question of how much of that opening demand remains.

The launch proved that privacy-coin exposure could gather substantial capital inside a conventional brokerage product. The competition now turns on what it costs to hold, how it operates, and what shareholders actually own.