Source: Cointelegraph.com NewsBitcoin and altcoins are struggling to hold the gains accrued earlier this week, a potential sign that the price breakout was just a response to Grayscale’s victory over the SEC.Read MoreMarkets, Bitcoin, Ethereum, Binance Coin, Ripple, Cardano, Dogecoin, Solana, Toncoin, Polkadot, Polygon, Price analysis