ETH options expiring 18SEP26, 11 days out, with the forward at $2,502. Open interest is $104M in calls and $54M in puts, put/call 0.51, and max pain is $2,500. At-the-money implied volatility is 48.9%. Where a strike is listed on both venues the cheaper ask and richer bid are visible side by side; the arb scanner flags any gap that exceeds fees. Strikes shown are within 60% of the forward. All ETH expiries.