Notable Friday Option Activity: INFI, RSO, P

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Infinity Pharmaceuticals Inc ( INFI), where a total volume of 7,196 contracts has been traded thus far today, a contract volume which is representative of approximately 719,600 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 130.3% of INFI's average daily trading volume over the past month, of 552,295 shares. Particularly high volume was seen for the $1 strike put option expiring April 21, 2017, with 7,196 contracts trading so far today, representing approximately 719,600 underlying shares of INFI. Below is a chart showing INFI's trailing twelve month trading history, with the $1 strike highlighted in orange:

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

Resource Capital Corp ( RSO) options are showing a volume of 1,569 contracts thus far today. That number of contracts represents approximately 156,900 underlying shares, working out to a sizeable 130.2% of RSO's average daily trading volume over the past month, of 120,510 shares. Particularly high volume was seen for the $12.50 strike put option expiring November 18, 2016, with 400 contracts trading so far today, representing approximately 40,000 underlying shares of RSO. Below is a chart showing RSO's trailing twelve month trading history, with the $12.50 strike highlighted in orange:

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And Pandora Media Inc ( P) options are showing a volume of 73,605 contracts thus far today. That number of contracts represents approximately 7.4 million underlying shares, working out to a sizeable 91% of P's average daily trading volume over the past month, of 8.1 million shares. Especially high volume was seen for the $11 strike call option expiring June 16, 2017, with 23,432 contracts trading so far today, representing approximately 2.3 million underlying shares of P. Below is a chart showing P's trailing twelve month trading history, with the $11 strike highlighted in orange:

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