Grayscale's crypto holdings soared over 85% in November, driven by altcoins like Stellar (XLM) and XRP, which saw gains of 469% and 262% respectively. Decentraland (MANA) also surged over 105%. Analysts predict an altcoin season, with XRP potentially hitting $2.57 by late 2024, influenced by Bitcoin's halving. Bitcoin dominance dipped below a two-year support line, signaling a shift to altcoins. Meanwhile, 21Shares filed for an XRP ETF with the SEC, and potential regulatory changes could further boost altcoin prospects as SEC Chair Gary Gensler steps down in January.