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Notable Tuesday Option Activity: ALXN, BLK, AZO


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Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Alexion Pharmaceuticals Inc. (Symbol: ALXN), where a total volume of 7,485 contracts has been traded thus far today, a contract volume which is representative of approximately 748,500 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 49.3% of ALXN's average daily trading volume over the past month, of 1.5 million shares. Especially high volume was seen for the $115 strike put option expiring August 17, 2018 , with 2,585 contracts trading so far today, representing approximately 258,500 underlying shares of ALXN. Below is a chart showing ALXN's trailing twelve month trading history, with the $115 strike highlighted in orange:

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Blackrock Inc (Symbol: BLK) saw options trading volume of 2,181 contracts, representing approximately 218,100 underlying shares or approximately 47.9% of BLK's average daily trading volume over the past month, of 454,890 shares. Especially high volume was seen for the $540 strike call option expiring June 15, 2018 , with 428 contracts trading so far today, representing approximately 42,800 underlying shares of BLK. Below is a chart showing BLK's trailing twelve month trading history, with the $540 strike highlighted in orange:

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And AutoZone, Inc. (Symbol: AZO) options are showing a volume of 2,110 contracts thus far today. That number of contracts represents approximately 211,000 underlying shares, working out to a sizeable 47.6% of AZO's average daily trading volume over the past month, of 442,960 shares. Especially high volume was seen for the $635 strike call option expiring June 15, 2018 , with 400 contracts trading so far today, representing approximately 40,000 underlying shares of AZO. Below is a chart showing AZO's trailing twelve month trading history, with the $635 strike highlighted in orange:

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For the various different available expirations for ALXN options , BLK options , or AZO options , visit StockOptionsChannel.com.

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

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



This article appears in: Investing , Options
Referenced Symbols: ALXN , BLK , AZO



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