ETH options expiring 16SEP26, 4 days out, with the forward at $2,537. Open interest is $0 in calls and $30K in puts, put/call 0.00, and max pain is $2,540. At-the-money implied volatility is 40.7%. 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.