For weeks, traders have pointed to a recurring pattern: a U.S equities open between 9:30am and 10:00am E.T, Bitcoin's overnight gains frequently fade. Since early November, BTC has reportedly declined during the first hour of U.S. trading in more than 60% of sessions, often dropping as much as 3% in that window. On December 4, for example, Bitcoin slid 2.1% within minutes of the S&P 500 opening flat.

On Tuesday, however, that pattern failed to materialize. Instead, Bitcoin surged nearly 3%, trading near $65,000 and helping lift broder crypto market capitalization by roughly 2.7% over 24 hours. The rally coincided with renewed speculation involving Jane Street, a major quantitative trading firm active across global markets.

Bitcoin trades 24/7, but liquidity shifts between Asia, Europe and the U.S. can exaggerate normal order-book adustments once America participation increase. 

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