Noteworthy Thursday Option Activity: OSIS, PFE, U

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in OSI Systems, Inc. (Symbol: OSIS), 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 56.5% of OSIS's average daily trading volume over the past month, of 179,665 shares. Especially high volume was seen for the $200 strike call option expiring February 21, 2025, with 387 contracts trading so far today, representing approximately 38,700 underlying shares of OSIS. Below is a chart showing OSIS's trailing twelve month trading history, with the $200 strike highlighted in orange:

Pfizer Inc (Symbol: PFE) saw options trading volume of 207,924 contracts, representing approximately 20.8 million underlying shares or approximately 55.5% of PFE's average daily trading volume over the past month, of 37.4 million shares. Particularly high volume was seen for the $24.50 strike put option expiring February 21, 2025, with 38,679 contracts trading so far today, representing approximately 3.9 million underlying shares of PFE. Below is a chart showing PFE's trailing twelve month trading history, with the $24.50 strike highlighted in orange:

And Unity Software Inc (Symbol: U) options are showing a volume of 52,300 contracts thus far today. That number of contracts represents approximately 5.2 million underlying shares, working out to a sizeable 54.3% of U's average daily trading volume over the past month, of 9.6 million shares. Particularly high volume was seen for the $26 strike call option expiring January 24, 2025, with 5,068 contracts trading so far today, representing approximately 506,800 underlying shares of U. Below is a chart showing U's trailing twelve month trading history, with the $26 strike highlighted in orange:

For the various different available expirations for OSIS options, PFE options, or U options, visit StockOptionsChannel.com.

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

Also see:

• Top Ten Hedge Funds Holding GVI
• Institutional Holders of CRVO
• BMCH Insider Buying

The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.