OPIS Calendar-Day Average

A snapshot of the average of all supplier postings in each OPIS rack market at 11:59 p.m. ET. The snapshot includes all price moves from 12:00 a.m. (midnight ET) until the file is frozen at 11:59 p.m. ET. (Example: The January 8th Calendar-Day Average encompasses all price moves that were made from 12:00 a.m. (midnight ET) on January 8th up through 11:59 p.m. ET on January 8th. Hence, it is an average of all prices on that calendar day.)


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