Volatilité implicite des options
Smile de VI et structure par terme ATM BTC/ETH · données Deribit
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IV Smile ·
Structure par terme de la VI ATM
Source : instantané de la chaîne d'options Deribit (actualisation ~30 min). La VI ATM est la moyenne des volatilités implicites call/put au strike le plus proche du comptant.
What is the IV smile?
Plotting implied volatility across strikes for one expiry usually forms a 'smile' or 'skew': deep out-of-the-money options (especially puts) carry higher IV, reflecting the premium paid for tail-risk protection. Put skew signals fear; call skew signals squeeze/FOMO conditions.
What is term structure?
ATM implied volatility across expiries. Contango (longer-dated IV above near-dated) is normal; inversion — near-month IV spiking above far months — signals event-driven short-term hedging demand.