Group 1 - The cryptocurrency ecosystem stocks are mostly declining, with notable drops in Bitcoin-related stocks such as Hut8 Mining (HUT.US) down over 2.9%, Mara Holdings (MARA.US) down over 2%, and MicroStrategy (MSTR.US) down over 2.4% [1] - Ethereum-related stocks like Bitmine Immersion Technologies (BMNR.US) and SharpLink Gaming (SBET.US) are experiencing larger declines, with drops exceeding 6% and 7% respectively [1] - The leading stablecoin company Circle (CRCL.US) has also seen a decline of over 0.8% [1] Group 2 - Nasdaq is intensifying scrutiny over listed companies that finance cryptocurrency purchases to inflate stock prices, requiring some companies to obtain shareholder approval before issuing new shares for cryptocurrency purchases [1] - This regulatory move may slow down the current cryptocurrency craze, which is pushing more alternative tokens into the mainstream market [1] - Nasdaq's new requirements include shareholder voting procedures, which could delay transactions and introduce uncertainty into the cryptocurrency market [1]

Group 1 - The cryptocurrency ecosystem stocks are mostly declining, with Bitcoin-related stocks like Hut 8 Mining down over 2.9%, Mara Holdings down over 2%, and Strategy down over 2.4% [1] - Ethereum-related stocks such as Bitmine Immersion Technologies fell over 6%, and SharpLink Gaming dropped over 7% [1] - Leading stablecoin issuer Circle saw a decline of over 0.8% [1] Group 2 - Nasdaq is intensifying scrutiny on listed companies that use financing to purchase cryptocurrencies to inflate stock prices [1] - The exchange now requires some companies to obtain shareholder approval before issuing new shares to buy cryptocurrencies, which may slow down the current cryptocurrency craze [1] - Nasdaq's new requirements include shareholder voting procedures, which could delay transactions and introduce uncertainty into the cryptocurrency market [1]