Grayscale Zcash Trust Drives 32.5% of Spot Crypto ETF Volume in One Week

Digital FinanceRegulationMacro
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Summary · why it matters

Zcash spot ETFs, led by the Grayscale Zcash Trust (ZCSH), recorded $11.42 billion in trading volume for the week ending September 18, 2026, accounting for 32.5% of all spot crypto ETF turnover despite the fund holding under $1 billion in assets. A single session on September 16 produced $11,023,979,376 of that total, roughly 96.5% of the week's turnover and 12.1 times the fund's entire net assets, while the other four sessions combined traded only about $396 million. The surge followed the Federal Reserve's 25 basis point rate hike to an upper bound of 3.75% to 4.00% on September 16 and the Senate's 49 to 50 rejection of the CLARITY Act on September 15. Since launching on August 27, 2026, Zcash spot ETFs have drawn $270,951,568 in cumulative net inflows across four positive weeks, while total net assets reached $914,528,187.65, a gap of roughly $644 million driven largely by ZEC's 175.14% monthly gain. Zcash now ranks third among altcoin ETFs by inflows, trailing XRP's $1,710,373,047.51 and Solana's $1.4 billion in net assets, though its $270.95 million represents just 16% of XRP's total.

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