Grayscale's Zcash ETF would erase its net inflows within eight trading days at late-September redemption rates

The redemptions explain only part of the fall in ZCSH's assets. Crypto Briefing puts the September peak at roughly $915 million to $979 million, so the slide to about $751 million took out $164 million to $228 million ^[1]. Cumulative net inflows over the same late-September stretch went from around $268 million to $212.56 million, a net $55.44 million out ^[2]. On those figures, redemptions account for 24% to 34% of the shrinkage ^[3]. The rest is ZEC, which pushed past $1,500 after the fund's debut before settling lower ^[11].

The report's own numbers do not fully reconcile. Its $93.56 million outflow week ^[2] is $38.12 million larger than the entire decline in cumulative net inflows it gives for late September and early October ^[5]. The weekly figure may be gross redemptions before new money came in, or the two may cover different windows. The report does not say which. Take the larger number anyway and flows explain 41% to 57% of the fall in assets, leaving at least 43% to price ^[4].

Launch money was always the smaller part of the asset base. ZCSH is a converted trust ^[1]. Of its roughly $751 million, about $538 million, or 72%, is not accounted for by post-launch net inflows; that portion is the trust's existing ZEC plus price moves on everything the fund holds ^[6]. The money that arrived with the launch is the $212.56 million on top, about 78% of the $271 million cumulative peak reached by mid-September ^{[3] [8]}.

Three readings fit. The first is that the late-September redemption days were launch-month traders leaving, and they taper. The second is that they keep coming. Run the September 30 and October 2 rates back to back with no new money and the remaining net inflows are gone in seven to eight trading days ^[7]. After that, redemptions start drawing on the trust's original holdings. In the third, flows settle and ZEC's price sets the asset figure regardless, as it did for much of the September decline ^[3].

Grayscale's response so far, the split, was aimed at liquidity, according to Crypto Briefing ^[15]. The report does not mention a fee cut ^[13]. The change Grayscale made is to how the shares trade, not to what they cost to hold ^[12].

I think the evidence supports a narrower claim than fragile demand for single-token spot ETFs. It covers one fund, 38 days from debut to the October 2 redemption ^[12], whose worst week of outflows came to 95% of its best week of inflows, $93.56 million against $98.2 million ^[11]. ZCSH is giving back part of its launch and remains net positive ^[9]. The fragility thesis gains real support if those cumulative net inflows turn negative in October, and it weakens if the $26 million-plus redemption days stop ^[8].