ETH options expiring 12SEP26, 4 days out, with the forward at $2,476. Open interest is $2M in calls and $317K in puts, put/call 0.13, and max pain is $2,400. 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.