The altcoin market is experiencing significant pressure as Bitcoin's dominance continues to rise, driven by tax-loss selling and a shift in investor focus. Market analyst CyrilXBT highlights that altcoins are under compression, with liquidity issues and intensified year-end selling contributing to the current market dynamics. Bitcoin's reputation as a safe-haven asset is attracting capital away from smaller cryptocurrencies, exacerbating the challenges faced by altcoins. Despite the current struggles, there is speculation about a potential rebound in the altcoin market in 2026. However, for now, the focus remains on Bitcoin, which is drawing increased attention and investment as the year comes to a close.