The evidence strongly supports the statement that the AGQ Leveraged Silver ETF experienced its largest-ever one-day drop, with a magnitude around 60%. Several sources directly corroborate the core claims. A Seeking Alpha article, a source with moderate authority, explicitly states that the ProShares Ultra Silver (AGQ) ETF fell 65% in a single session, calling it the "greatest one-day percentage drop." Two posts from The Kobeissi Letter, a market commentary service, directly align with the statement, reporting a 60% drop for AGQ and noting it as the "largest daily decline on record." An additional Instagram post also reports a 60% crash.There is a minor discrepancy in the exact percentage reported (60% vs. 65%), which is common in financial reporting due to differences in using intra-day lows versus closing prices or slight rounding. However, this minor variation does not undermine the fundamental accuracy of the statement regarding a massive, record-breaking single-day decline. Furthermore, contextual sources confirm a historic plunge in the price of silver on the same day, which makes a record drop for a 2x leveraged silver ETF extremely plausible. The sources that are irrelevant or have very low authority do not contradict the findings. The consistency across multiple direct and contextual sources provides high confidence that the statement is true.