Vol Surface
SVI-fitted implied volatility surface — smile, skew, and heatmap across expiries
Load Surface
Spot:
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ATM IV (front)
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Term Structure
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25Δ Risk Reversal
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put IV − call IV
25Δ Butterfly
—
wing premium over ATM
Enter a ticker to load its vol surface
Options data sourced from Tradier (real-time) or Yahoo Finance
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Fetching options chain and fitting SVI model
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Smile View
Surface Heatmap
Implied Volatility Smile — IV vs Moneyness by Expiry
IV Heatmap — DTE (Y) × Moneyness (X)
IV Low
IV High
Term Structure — ATM IV & Skew by Expiry
Expiry
DTE
ATM IV
25Δ RR
25Δ BF
Skew (25Δ put)
SVI Valid