100*(CURRENCYCOM:US500*CBOE_DLY:VXN+CURRENCYCOM:US100*CBOE_DLY:VX1!)/(CBOE_DLY:VX1!*CBOE_DLY:VXN)
None
Formula de Berard NOCTURNA 100*(US500*VXN+US100*VX1!)/(VX1!*VXN)
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