Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Illumina Inc (ILMN), where a total volume of 4,012 contracts has been traded thus far today, a contract volume which is representative of approximately 401,200 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 46.2% of ILMN's average daily trading volume over the past month, of 867,680 shares. Particularly high volume was seen for the $420 strike put option expiring June 04, 2021, with 501 contracts trading so far today, representing approximately 50,100 underlying shares of ILMN. Below is a chart showing ILMN's trailing twelve month trading history, with the $420 strike highlighted in orange:

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

Expedia Group Inc (EXPE) saw options trading volume of 12,146 contracts, representing approximately 1.2 million underlying shares or approximately 44.8% of EXPE's average daily trading volume over the past month, of 2.7 million shares. Particularly high volume was seen for the $175 strike call option expiring May 28, 2021, with 1,561 contracts trading so far today, representing approximately 156,100 underlying shares of EXPE. Below is a chart showing EXPE's trailing twelve month trading history, with the $175 strike highlighted in orange:

And Adient plc (ADNT) saw options trading volume of 2,922 contracts, representing approximately 292,200 underlying shares or approximately 44.7% of ADNT's average daily trading volume over the past month, of 653,145 shares. Particularly high volume was seen for the $70 strike call option expiring October 15, 2021, with 1,006 contracts trading so far today, representing approximately 100,600 underlying shares of ADNT. Below is a chart showing ADNT's trailing twelve month trading history, with the $70 strike highlighted in orange: