Grayscale files for spot Polkadot fund as altcoin ETF race heats up

21Shares was the first issuer to file for a DOT ETF on Jan. 31 as altcoin ETF filings continue to pile in. source: https://www.theblock.co/post/343263/grayscale-files-for-spot-polkadot-fund-as-altcoin-etf-race-heats-up?utm_source=rss&utm_medium=rss