open4siThe research of RC used the SCSCF multiprocessor cluster system at University Ca’ Foscari of Venice and is part of the research activities of the Venice Center in Economic and Risk Analytics for public policies (VERA) at Ca’ Foscari University of Venice. GL acknowledges research support from the Scuola Normale Superiore Grant SNS_14_BORMETTI and CI14_UNICREDIT_MARMI.Based on the fact that realized measures of volatility are affected by measurement errors, we introduce a new family of discrete-time stochastic volatility models having two measurement equations relating both observed returns and realized measures to the latent conditional variance. A semi-analytical option pricing framework is developed for this class of models. In addi...