A Winklevoss-backed exchange-traded fund seeking to track Zcash's price has filed a registration statement with the US Securities and Exchange Commission. The proposed Winklevoss Zcash ETF would hold ZEC directly and seek a Nasdaq listing under the ticker WINK. The fund would charge an annual sponsor fee of 0.25%. Winklevoss Capital Fund has indicated interest in purchasing up to $100 million in shares through affiliates, but the potential investment is not binding.