Options market alert lifted, USD/JPY breakout risk retreats sharply from 2.9 to 2.0

⑴ The foreign exchange options market's breakout warning signals for USD/JPY are dissipating, as the 1-week 10-delta butterfly spread has declined from the highest level since 2020 at 2.9 down to 2.0.⑵ The benchmark 1-month 10-delta butterfly spread has fallen from 1.8 to 1.4, and the 1-month 25-delta butterfly spread is trading at 0.5 today with sellers emerging, indicating that the market's tolerance for two-sided tail risks is rising.⑶ Butterfly spreads measure the implied volatility difference between at-the-money straddle options and low-delta options; a sharp decrease implies that the market perceives a lower probability of sudden, dramatic fluctuations in USD/JPY.⑷ The catalyst is the improved outlook for the US-Iran agreement, which has subdued previously risk-averse sentiment that supported demand for options. The risk of disorderly breakouts in either direction is being re-evaluated by the market.⑸ For USD/JPY to surge significantly, sustained risk aversion driving the dollar higher or the failure of Bank of Japan intervention would be required. A sharp reversal lower is always possible due to the threat of intervention; now, easing geopolitical tensions have made both scenarios less urgent.⑹ With the Bank of Japan's policy decision approaching on Tuesday, the overnight implied volatility for USD/JPY remains at historically low levels, meaning the market may be significantly underestimating the risks posed to the current exchange rate by the Bank of Japan.