ISE Blames OPRA for NBBO Data Exclusion


The feed, which is compiled and disseminated by OPRA as part of its consolidated feed of US options quote and trade data, includes best bid and offer data from all US options exchanges.

The ISE experienced a technical issue at the market open that led to a disruption in its outbound feed of market data to OPRA until around 10:55am, according to a statement from ISE.

The root cause was identified as a configuration error at OPRA that was applied specifically to the communication lines dedicated t

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