Noteworthy Friday Option Activity: BLK, MU, ANET

Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Blackrock Inc (Symbol: BLK), where a total volume of 2,685 contracts has been traded thus far today, a contract volume which is representative of approximately 268,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 47% of BLK's average daily trading volume over the past month, of 571,130 shares. Particularly high volume was seen for the $1130 strike put option expiring November 21, 2025, with 541 contracts trading so far today, representing approximately 54,100 underlying shares of BLK. Below is a chart showing BLK's trailing twelve month trading history, with the $1130 strike highlighted in orange:

Micron Technology Inc. (Symbol: MU) saw options trading volume of 137,695 contracts, representing approximately 13.8 million underlying shares or approximately 46.7% of MU's average daily trading volume over the past month, of 29.5 million shares. Especially high volume was seen for the $187.50 strike put option expiring October 10, 2025, with 6,218 contracts trading so far today, representing approximately 621,800 underlying shares of MU. Below is a chart showing MU's trailing twelve month trading history, with the $187.50 strike highlighted in orange:

And Arista Networks Inc (Symbol: ANET) options are showing a volume of 40,246 contracts thus far today. That number of contracts represents approximately 4.0 million underlying shares, working out to a sizeable 45.1% of ANET's average daily trading volume over the past month, of 8.9 million shares. Especially high volume was seen for the $155 strike call option expiring November 21, 2025, with 6,822 contracts trading so far today, representing approximately 682,200 underlying shares of ANET. Below is a chart showing ANET's trailing twelve month trading history, with the $155 strike highlighted in orange:

For the various different available expirations for BLK options, MU options, or ANET options, visit StockOptionsChannel.com.

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

Also see:

• DD Dividend History
• SVMK Options Chain
• MTB Technical Analysis

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