Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Tesoro Corporation (TSO), where a total volume of 10,014 contracts has been traded thus far today, a contract volume which is representative of approximately 1.0 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 44.2% of TSO's average daily trading volume over the past month, of 2.3 million shares. Especially high volume was seen for the $82.50 strike call option expiring April 21, 2017, with 1,458 contracts trading so far today, representing approximately 145,800 underlying shares of TSO. Below is a chart showing TSO's trailing twelve month trading history, with the $82.50 strike highlighted in orange:

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InnerWorkings Inc ( INWK) saw options trading volume of 772 contracts, representing approximately 77,200 underlying shares or approximately 43.7% of INWK's average daily trading volume over the past month, of 176,775 shares. Especially high volume was seen for the $7.50 strike put option expiring April 21, 2017, with 369 contracts trading so far today, representing approximately 36,900 underlying shares of INWK. Below is a chart showing INWK's trailing twelve month trading history, with the $7.50 strike highlighted in orange:

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And Buckle, Inc. ( BKE) options are showing a volume of 2,634 contracts thus far today. That number of contracts represents approximately 263,400 underlying shares, working out to a sizeable 43.6% of BKE's average daily trading volume over the past month, of 603,500 shares. Especially high volume was seen for the $16.75 strike put option expiring March 17, 2017, with 735 contracts trading so far today, representing approximately 73,500 underlying shares of BKE. Below is a chart showing BKE's trailing twelve month trading history, with the $16.75 strike highlighted in orange:

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For the various different available expirations for TSO options, INWK options, or BKE options, visit StockOptionsChannel.com.