Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Spark Energy Inc (SPKE), where a total volume of 1,015 contracts has been traded thus far today, a contract volume which is representative of approximately 101,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 76.7% of SPKE's average daily trading volume over the past month, of 132,330 shares. Particularly high volume was seen for the $10 strike put option expiring June 18, 2021, with 1,001 contracts trading so far today, representing approximately 100,100 underlying shares of SPKE. Below is a chart showing SPKE's trailing twelve month trading history, with the $10 strike highlighted in orange:

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

Advance Auto Parts Inc (AAP) options are showing a volume of 5,791 contracts thus far today. That number of contracts represents approximately 579,100 underlying shares, working out to a sizeable 70.2% of AAP's average daily trading volume over the past month, of 825,465 shares. Especially high volume was seen for the $190 strike call option expiring May 21, 2021, with 1,515 contracts trading so far today, representing approximately 151,500 underlying shares of AAP. Below is a chart showing AAP's trailing twelve month trading history, with the $190 strike highlighted in orange:

And J.B. Hunt Transport Services, Inc. (JBHT) options are showing a volume of 3,697 contracts thus far today. That number of contracts represents approximately 369,700 underlying shares, working out to a sizeable 68.6% of JBHT's average daily trading volume over the past month, of 538,710 shares. Especially high volume was seen for the $175 strike call option expiring April 16, 2021, with 806 contracts trading so far today, representing approximately 80,600 underlying shares of JBHT. Below is a chart showing JBHT's trailing twelve month trading history, with the $175 strike highlighted in orange: