Grayscale quietly killed three altcoin ETFs two days before Cardano became eligible

Grayscale withdrew its Cardano, Polkadot, and Hedera ETF registrations in under four minutes on August 7, exactly two days before ADA cleared the SEC seasoning threshold. With Bitwise and Canary still in the race, the retreat says more about the economics of altcoin ETFs than about Cardano itself. Summary Grayscale filed three Form RW withdrawals with the SEC on August 7, 2026, pulling its Cardano Trust ETF, Polkadot Trust ETF, and Hedera Trust ETF registrations in a span of 190 seconds, with no shares issued, sold, or distributed under any of the three. – Cardano completed its six-month CME futures seasoning period on August 9, 2026, two days after Grayscale walked away, clearing the threshold that would have allowed a spot ADA ETF to list under the SEC generic listing standards in as few as 75 days. – Five other issuers, including Bitwise, Canary Capital, VanEck, and 21Shares, still have active ADA ETF filings, with the earliest possible SEC decision window falling around October 23, 2026. – Grayscale reported a 20 percent revenue decline in its IPO filing, with GBTC and ETHE generating 88 percent of the firm’s roughly $318.7 million in nine-month revenue while bleeding a combine...