{"currency":"ETH","spot":2446.34,"spot_source":"price-service","total_instruments":2118,"exchanges":{"deribit":{"count":820,"source":"computed"},"okx":{"count":614,"source":"native"},"bybit":{"count":684,"source":"native"},"bullish":{"count":0,"source":"native"}},"summary":{"reference_expiry":"2026-09-12","reference_dte":1.2,"spot":2446.34,"atm_strike":2450,"atm_iv":53.3,"atm_delta":0.491111,"atm_gamma":0.00532016,"atm_theta":-12.5971,"atm_vega":0.0056,"put_25d_iv":55.77,"put_25d_strike":2400,"call_25d_iv":54.82,"call_25d_strike":2500,"skew":0.95},"timestamp":"2026-09-11T03:03:05.595985+00:00","preview":true,"signed":true,"note":"Preview only. Paid endpoint returns full per-strike Greeks across all exchanges.","canonical":"v1|GREEKS-PREVIEW|ETH|2026-09-11T03:03:05.595985+00:00|2446.34|2118","signature":"5c416652e5683d52e2d090a0ae30569a4739e2efc2e3ecb2e5264d3ca5dd9d06956fb234b3617406ed53281da71316dcb10fe2edb619491cdbf566867cf22e08","digest":"f27e26faf5f836cc3ad17583cfffe3a97aa184a7f59a4cd07046789198781722","pubkey":"7ab07fbe7d08cd16823e5eb0db0e21f3f38e9366d5fd00d14e95df0fb9b51a1a","preview_cached":true,"cache_age_minutes":36}