According to The Kobeissi Letter, US stocks extended gains with the Nasdaq 100 up about 1% intraday on December 19, 2025. Source: The Kobeissi Letter on X, December 19, 2025. The post indicates a potential year-end Santa rally is still in play, signaling renewed risk-on sentiment in growth and tech equities. Source: The Kobeissi Letter on X, December 19, 2025. For crypto traders, US equity-driven risk appetite during US hours is relevant because BTC and ETH volumes and liquidity are concentrated during US trading sessions, which can amplify intraday cross-asset momentum. Source: Kaiko Research, 2023 study on crypto market activity by trading hours. Actionable watch: Monitor BTC and ETH into the US close alongside Nasdaq 100 futures to assess whether risk-on momentum broadens beyond equities. Source: The Kobeissi Letter on X, December 19, 2025; Kaiko Research, 2023 study on crypto market activity by trading hours.

According to @CoinMarketCap, BTC rose 0.79% and ETH gained 5.13% as total crypto market capitalization reached $3.21 trillion. According to @CoinMarketCap, an early-week sell-off triggered about $800 million in long liquidations before bulls regained momentum. According to @CoinMarketCap, HYPE unlock concerns have eased while restaking demand has increased. According to @CoinMarketCap, Vanguard has listed crypto ETFs.

According to @CoinMarketCap, BTC moved back above $91K on Thanksgiving and was labeled a strong buy, framing a Santa rally setup for traders; source: @CoinMarketCap on X, Nov 28, 2025. According to @CoinMarketCap, the meme coin sector’s market cap rebounded to $42.4B after touching 2025 lows but remains slow to react, highlighting uneven risk appetite across alt segments; source: @CoinMarketCap on X, Nov 28, 2025. According to @CoinMarketCap, the weekly update also flags Bit-Signal and a DOGE ETF theme as focal points within the meme coin narrative; source: @CoinMarketCap on X, Nov 28, 2025.