Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Innovative Industrial Properties Inc (Symbol: IIPR), where a total volume of 1,969 contracts has been traded thus far today, a contract volume which is representative of approximately 196,900 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 45.3% of IIPR's average daily trading volume over the past month, of 434,225 shares. Especially high volume was seen for the $85 strike call option expiring May 17, 2019, with 1,238 contracts trading so far today, representing approximately 123,800 underlying shares of IIPR. Below is a chart showing IIPR's trailing twelve month trading history, with the $85 strike highlighted in orange:

American Express Co. (Symbol: AXP) options are showing a volume of 15,617 contracts thus far today. That number of contracts represents approximately 1.6 million underlying shares, working out to a sizeable 44.6% of AXP's average daily trading volume over the past month, of 3.5 million shares. Especially high volume was seen for the $114 strike put option expiring May 03, 2019, with 1,559 contracts trading so far today, representing approximately 155,900 underlying shares of AXP. Below is a chart showing AXP's trailing twelve month trading history, with the $114 strike highlighted in orange:

And Houlihan Lokey Inc (Symbol: HLI) saw options trading volume of 925 contracts, representing approximately 92,500 underlying shares or approximately 44.5% of HLI's average daily trading volume over the past month, of 207,815 shares. Particularly high volume was seen for the $45 strike put option expiring May 17, 2019, with 650 contracts trading so far today, representing approximately 65,000 underlying shares of HLI. Below is a chart showing HLI's trailing twelve month trading history, with the $45 strike highlighted in orange:

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