USD/JPY War Premium: How Geopolitical Risk Moves Dollar-Yen
The USD/JPY war premium has structurally shifted from directional spot positioning to options skew and intervention-ceiling hedges, traders using spot alone are systematically behind vol desks. USD/JPY above 160, now in the 160–164.80 intervention zone, transforms war risk into a three-way trade: rate differentials, safe-haven flows, and Bank of Japan intervention probability. Oil is the primary transmission channel: Strait of Hormuz disruptions lift Brent crude, raise U.S. inflation expectations, delay Fed easing, and reinforce USD strength even when yen safe-haven demand is present. CoinUnited.io's 24/7 USD/JPY trading, including weekends and Japanese holidays, is structurally critical because intervention and escalation events cluster outside Tokyo and New York session overlaps.