Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Microsoft Corporation (Symbol: MSFT), where a total volume of 114,617 contracts has been traded thus far today, a contract volume which is representative of approximately 11.5 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 46% of MSFT's average daily trading volume over the past month, of 24.9 million shares. Especially high volume was seen for the $120 strike call option expiring July 19, 2019, with 22,874 contracts trading so far today, representing approximately 2.3 million underlying shares of MSFT. Below is a chart showing MSFT's trailing twelve month trading history, with the $120 strike highlighted in orange:

Royal Caribbean Cruises Ltd (Symbol: RCL) saw options trading volume of 5,949 contracts, representing approximately 594,900 underlying shares or approximately 44.3% of RCL's average daily trading volume over the past month, of 1.3 million shares. Especially high volume was seen for the $115 strike put option expiring April 18, 2019, with 1,047 contracts trading so far today, representing approximately 104,700 underlying shares of RCL. Below is a chart showing RCL's trailing twelve month trading history, with the $115 strike highlighted in orange:

And Diamondback Energy, Inc. (Symbol: FANG) options are showing a volume of 6,383 contracts thus far today. That number of contracts represents approximately 638,300 underlying shares, working out to a sizeable 41.2% of FANG's average daily trading volume over the past month, of 1.5 million shares. Particularly high volume was seen for the $105 strike call option expiring April 18, 2019, with 934 contracts trading so far today, representing approximately 93,400 underlying shares of FANG. Below is a chart showing FANG's trailing twelve month trading history, with the $105 strike highlighted in orange:

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