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target tenor falls outside the listed-expiry range at one or both snapshots; extrapolated values are 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SOL index coverage for 24h is incomplete: expected 1440 one-minute returns, found 1415 (98.2639% coverage); returns spanning missing minutes are excluded","fitQuality":{"currentObjective":0.00638223,"previousObjective":0.05148308,"currentLiveError":6.05670547,"previousLiveError":58.25886292},"freshness":null,"comparisonStatus":null,"comparisonNote":null,"rejectedPreviousSnapshotAt":null},"methodology":{"source":"Derivasys proprietary historical SVI surface database","comparison":"Nearest successful surface snapshots approximately 24 hours apart","rrConvention":"25-delta call IV minus 25-delta put IV","bfConvention":"Average 25-delta wing IV minus ATM forward IV","greeks":"Black forward Greeks for a normalized one-SOL ATM-forward call, zero rate, fitted SVI IV","commentary":"Metrics and takeaways are deterministic. Daily headlines and introductions may be model-assisted, constrained to the same stored facts; weekly prose is deterministic.","fixedTenors":"Fixed-tenor measures are published only when listed expiries bracket the target at both comparison snapshots. Targets outside either observable range are suppressed, not extrapolated; headline rankings use only supported tenors.","smileReconstruction":"Listed-expiry smiles are reconstructed from stored SVI total-variance parameters on a fixed log-moneyness grid.","ultraShortExpiry":"Expiries with fewer than 2 full days remaining stay in detailed tables but are excluded from headline rankings. Settlement proximity, time decay, changing liquidity and fewer quotes can exaggerate their changes.","causalClaims":"The report describes observed surface changes only and does not infer unsupported market drivers, spot moves, flows or forecasts."},"nearestEligibleForward":null}]}