Canary Capital, an asset manager, has submitted paperwork to list an exchange-traded fund (ETF) that will hold Pengu (PENGU), the governance token of the Pudgy Penguins non-fungible token (NFT) project, according to US regulatory filings. The ETF is part of a wave of filings for new US investment products linked to various cryptocurrencies, including altcoins and memecoins. The filing states that the ETF is designed to include PENGU and different Pudgy Penguins NFTs, potentially making it the first US ETF to hold NFTs if approved. Additionally, the filing mentions that the Trust will also include other digital assets like SOL and ETH that are necessary for the Trust's operations. Pudgy Penguins, a popular NFT brand, has a market capitalization of around $438 million as of March 20, as reported by CoinGecko.