Traders placed a $760 million bet against oil prices exactly 20 minutes before Iran announced the Strait of Hormuz was reopening on April 17, 2026, then profited when prices fell 11% within minutes. U.S. lawmakers and legal experts have raised concerns that such well-timed trades before major geopolitical announcements suggest some traders gain unfair advantage from insider knowledge of war and diplomacy decisions. The timing is extraordinary — whether this represents lucky market prediction or actual information leakage remains the open question that regulators are examining.