
Merck & Co Inc (Symbol: MRK) options are showing a volume of 58,614 contracts thus far today. That number of contracts represents approximately 5.9 million underlying shares, working out to a sizeable 45% of MRK's average daily trading volume over the past month, of 13.0 million shares. Particularly high volume was seen for the $100 strike call option expiring September 18, 2026, with 20,020 contracts trading so far today, representing approximately 2.0 million underlying shares of MRK. Below is a chart showing MRK's trailing twelve month trading history, with the $100 strike highlighted in orange:

And Biohaven Ltd (Symbol: BHVN) options are showing a volume of 10,516 contracts thus far today. That number of contracts represents approximately 1.1 million underlying shares, working out to a sizeable 44.9% of BHVN's average daily trading volume over the past month, of 2.3 million shares. Particularly high volume was seen for the $50 strike call option expiring December 19, 2025, with 2,706 contracts trading so far today, representing approximately 270,600 underlying shares of BHVN. Below is a chart showing BHVN's trailing twelve month trading history, with the $50 strike highlighted in orange:

For the various different available expirations for MDGL options, MRK options, or BHVN options, visit StockOptionsChannel.com.
Today's Most Active Call & Put Options of the S&P 500 »
Also see:
Funds Holding BCR LMT DMA
DEP Videos
The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.