Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Herc Holdings Inc (Symbol: HRI), where a total of 1,622 contracts have traded so far, representing approximately 162,200 underlying shares. That amounts to about 82.3% of HRI's average daily trading volume over the past month of 197,025 shares. Particularly high volume was seen for the $40 strike put option expiring April 18, 2019, with 1,110 contracts trading so far today, representing approximately 111,000 underlying shares of HRI. Below is a chart showing HRI's trailing twelve month trading history, with the $40 strike highlighted in orange:

Esperion Therapeutics Inc (Symbol: ESPR) options are showing a volume of 4,354 contracts thus far today. That number of contracts represents approximately 435,400 underlying shares, working out to a sizeable 70.5% of ESPR's average daily trading volume over the past month, of 617,955 shares. Especially high volume was seen for the $45 strike call option expiring May 17, 2019, with 2,099 contracts trading so far today, representing approximately 209,900 underlying shares of ESPR. Below is a chart showing ESPR's trailing twelve month trading history, with the $45 strike highlighted in orange:

And Clovis Oncology Inc (Symbol: CLVS) options are showing a volume of 8,244 contracts thus far today. That number of contracts represents approximately 824,400 underlying shares, working out to a sizeable 70.3% of CLVS's average daily trading volume over the past month, of 1.2 million shares. Especially high volume was seen for the $26 strike put option expiring May 17, 2019, with 2,229 contracts trading so far today, representing approximately 222,900 underlying shares of CLVS. Below is a chart showing CLVS's trailing twelve month trading history, with the $26 strike highlighted in orange:

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