Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Aurinia Pharmaceuticals Inc (AUPH), where a total volume of 18,675 contracts has been traded thus far today, a contract volume which is representative of approximately 1.9 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 81.8% of AUPH's average daily trading volume over the past month, of 2.3 million shares. Especially high volume was seen for the $10 strike call option expiring January 19, 2024, with 4,100 contracts trading so far today, representing approximately 410,000 underlying shares of AUPH. Below is a chart showing AUPH'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 »

DraftKings Inc (DKNG) saw options trading volume of 93,141 contracts, representing approximately 9.3 million underlying shares or approximately 81.8% of DKNG's average daily trading volume over the past month, of 11.4 million shares. Especially high volume was seen for the $31 strike put option expiring January 12, 2024, with 5,756 contracts trading so far today, representing approximately 575,600 underlying shares of DKNG. Below is a chart showing DKNG's trailing twelve month trading history, with the $31 strike highlighted in orange:

And Universal Insurance Holdings Inc (UVE) options are showing a volume of 1,717 contracts thus far today. That number of contracts represents approximately 171,700 underlying shares, working out to a sizeable 81.6% of UVE's average daily trading volume over the past month, of 210,420 shares. Particularly high volume was seen for the $14.87 strike put option expiring January 19, 2024, with 650 contracts trading so far today, representing approximately 65,000 underlying shares of UVE. Below is a chart showing UVE's trailing twelve month trading history, with the $14.87 strike highlighted in orange: