Noteworthy Friday Option Activity: UNP, AAL, CLX

Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Union Pacific Corp (UNP), where a total of 21,296 contracts have traded so far, representing approximately 2.1 million underlying shares. That amounts to about 89.2% of UNP's average daily trading volume over the past month of 2.4 million shares..