Noteworthy Friday Option Activity: HAL, UAL, ALGN
July 21, 2017 at 14:35 PM EDT
Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in Halliburton Company (HAL), where a total of 39,828 contracts have traded so far, representing approximately 4.0 million underlying shares. That amounts to about 45.9% of HAL's average daily trading volume over the past month of 8.7 million shares..