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Notable Friday Option Activity: TSRO, RTRX, GTT

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Tesaro Inc (Symbol: TSRO), where a total volume of 19,153 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 119.4% of TSRO's average daily trading volume over the past month, of 1.6 million shares. Especially high volume was seen for the $35 strike put option expiring August 17, 2018 , with 5,417 contracts trading so far today, representing approximately 541,700 underlying shares of TSRO. Below is a chart showing TSRO's trailing twelve month trading history, with the $35 strike highlighted in orange:

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Retrophin, Inc. (Symbol: RTRX) saw options trading volume of 3,451 contracts, representing approximately 345,100 underlying shares or approximately 112% of RTRX's average daily trading volume over the past month, of 307,990 shares. Especially high volume was seen for the $12.50 strike call option expiring January 18, 2019 , with 3,316 contracts trading so far today, representing approximately 331,600 underlying shares of RTRX. Below is a chart showing RTRX's trailing twelve month trading history, with the $12.50 strike highlighted in orange:

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And GTT Communications, Inc (Symbol: GTT) options are showing a volume of 3,125 contracts thus far today. That number of contracts represents approximately 312,500 underlying shares, working out to a sizeable 104% of GTT's average daily trading volume over the past month, of 300,395 shares. Especially high volume was seen for the $40 strike put option expiring September 21, 2018 , with 602 contracts trading so far today, representing approximately 60,200 underlying shares of GTT. Below is a chart showing GTT's trailing twelve month trading history, with the $40 strike highlighted in orange:

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For the various different available expirations for TSRO options , RTRX options , or GTT options , visit StockOptionsChannel.com.

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

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


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

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