According to @EricBalchunas, he posted a humorous note on X ridiculing claims that Vanguard teamed up with BlackRock and JPMorgan to push the BTC price down so associates could buy cheaper, source: Eric Balchunas on X, Dec 3, 2025. The post offers no evidence of coordinated Bitcoin price manipulation and frames the narrative as rumor, which is relevant for traders assessing narrative-driven volatility, source: Eric Balchunas on X, Dec 3, 2025.