ETH options expiring 15SEP26, 1 days out, with the forward at $2,509. Open interest is $28M in calls and $25M in puts, put/call 0.90, and max pain is $2,540. At-the-money implied volatility is 47.5%. 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.