Notable Tuesday Option Activity: EBAY, STX, COF

Among the underlying components of the S&P 500 index, we saw noteworthy options trading volume today in eBay Inc. (Symbol: EBAY), where a total of 76,314 contracts have traded so far, representing approximately 7.6 million underlying shares. That amounts to about 62.9% of EBAY's average daily trading volume over the past month of 12.1 million shares. Particularly high volume was seen for the $33.50 strike put option expiring January 25, 2019 , with 12,720 contracts trading so far today, representing approximately 1.3 million underlying shares of EBAY. Below is a chart showing EBAY's trailing twelve month trading history, with the $33.50 strike highlighted in orange:

Seagate Technology plc (Symbol: STX) options are showing a volume of 20,939 contracts thus far today. That number of contracts represents approximately 2.1 million underlying shares, working out to a sizeable 53.9% of STX's average daily trading volume over the past month, of 3.9 million shares. Particularly high volume was seen for the $37.50 strike put option expiring February 01, 2019 , with 13,891 contracts trading so far today, representing approximately 1.4 million underlying shares of STX. Below is a chart showing STX's trailing twelve month trading history, with the $37.50 strike highlighted in orange:

And Capital One Financial Corp (Symbol: COF) saw options trading volume of 15,358 contracts, representing approximately 1.5 million underlying shares or approximately 51.9% of COF's average daily trading volume over the past month, of 3.0 million shares. Especially high volume was seen for the $84 strike call option expiring February 01, 2019 , with 4,018 contracts trading so far today, representing approximately 401,800 underlying shares of COF. Below is a chart showing COF's trailing twelve month trading history, with the $84 strike highlighted in orange: