Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Mitek Systems, Inc. (MITK), where a total volume of 2,139 contracts has been traded thus far today, a contract volume which is representative of approximately 213,900 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 73.5% of MITK's average daily trading volume over the past month, of 291,070 shares. Especially high volume was seen for the $10 strike call option expiring August 18, 2023, with 1,007 contracts trading so far today, representing approximately 100,700 underlying shares of MITK. Below is a chart showing MITK'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 »

Cross Country Healthcare Inc (CCRN) options are showing a volume of 5,202 contracts thus far today. That number of contracts represents approximately 520,200 underlying shares, working out to a sizeable 73.5% of CCRN's average daily trading volume over the past month, of 708,000 shares. Especially high volume was seen for the $30 strike call option expiring December 15, 2023, with 2,015 contracts trading so far today, representing approximately 201,500 underlying shares of CCRN. Below is a chart showing CCRN's trailing twelve month trading history, with the $30 strike highlighted in orange:

And Ally Financial Inc (ALLY) saw options trading volume of 28,226 contracts, representing approximately 2.8 million underlying shares or approximately 72.7% of ALLY's average daily trading volume over the past month, of 3.9 million shares. Particularly high volume was seen for the $25 strike put option expiring January 19, 2024, with 7,457 contracts trading so far today, representing approximately 745,700 underlying shares of ALLY. Below is a chart showing ALLY's trailing twelve month trading history, with the $25 strike highlighted in orange: