Bitcoin surged to $84,737 on October 21, 2026, gaining as much as 2.4% as technology stocks rebounded and risk appetite returned to the market. The rally was supported by strong earnings reports, including SpaceX's third-quarter revenue of $14.6 billion, a 161% increase from the same period last year. Super Micro Computer also contributed to the positive sentiment with an encouraging preannouncement, reigniting interest in AI-linked stocks that had faced pressure the prior week.
The upward momentum extended beyond Bitcoin, with Ether rising 3.7% and Solana gaining more than 4.6%. US spot Bitcoin ETFs saw significant inflows, attracting over $549 million in net inflows across October 19 and 20. These ETFs provide traditional investors with a way to hold Bitcoin exposure through brokerage accounts, and their flows serve as a key indicator of institutional and retail demand.
Oil prices retreated, easing pressure on both equities and digital currencies. The ETF inflows are particularly noteworthy, as the $549 million in net inflows over two days suggests demand that preceded the price move, potentially offering more durable support than momentum-driven rallies. The same AI trade that lifted Bitcoin this week had knocked it down the week before, highlighting the growing relevance of equity calendars to crypto holders.
The outperformance of Ether and Solana signals that traders are willing to take on more risk, though these assets tend to fall harder when sentiment sours. This dynamic underscores the importance of monitoring broader market trends and their impact on digital asset prices.