Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Container Store Group, Inc (TCS - Get Report), where a total volume of 1,717 contracts has been traded thus far today, a contract volume which is representative of approximately 171,700 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 55.8% of TCS's average daily trading volume over the past month, of 307,855 shares. Especially high volume was seen for the $5 strike call option expiring September 15, 2017, with 992 contracts trading so far today, representing approximately 99,200 underlying shares of TCS. Below is a chart showing TCS's trailing twelve month trading history, with the $5 strike highlighted in orange:

Loading+chart++2017+TickerTech.com

START SLIDESHOW:
Today's Most Active Call & Put Options of the S&P 500 »

Tenet Healthcare Corp. ( THC) saw options trading volume of 25,625 contracts, representing approximately 2.6 million underlying shares or approximately 52.8% of THC's average daily trading volume over the past month, of 4.9 million shares. Especially high volume was seen for the $15 strike call option expiring September 15, 2017, with 14,443 contracts trading so far today, representing approximately 1.4 million underlying shares of THC. Below is a chart showing THC's trailing twelve month trading history, with the $15 strike highlighted in orange:

Loading+chart++2017+TickerTech.com

And United Rentals Inc ( URI) saw options trading volume of 6,271 contracts, representing approximately 627,100 underlying shares or approximately 51.9% of URI's average daily trading volume over the past month, of 1.2 million shares. Particularly high volume was seen for the $115 strike put option expiring August 18, 2017, with 1,600 contracts trading so far today, representing approximately 160,000 underlying shares of URI. Below is a chart showing URI's trailing twelve month trading history, with the $115 strike highlighted in orange:

Loading+chart++2017+TickerTech.com

For the various different available expirations for TCS options, THC options, or URI options, visit StockOptionsChannel.com.