According to @KookCapitalLLC, Grayscale filed the first S-1 for a meme ETF focused on DOGE, a move the post characterizes as absolutely massive for TradFi recognition of memecoins (source: @KookCapitalLLC). The post asserts this could open the floodgates for memes as a legitimate asset class and implies majors could benefit, but it provides no SEC filing link or accession number for verification (source: @KookCapitalLLC). For trading, verify any S-1 on the SEC EDGAR system before acting, and if confirmed, monitor DOGE spot and perpetual volumes, funding rates, and open interest for headline-driven volatility and flow shifts into large-cap memecoins (source: @KookCapitalLLC).