Merck & CompanyMRKBUYApr 17, 2023Stock price when the opinion was issued
As of Jul 31, 2026. Market Open.
Keytruda makes up half of sales, which makes the market nervous, because the drug faces a patent cliff in a few years. Their pipeline is deep, and the acquisitions they made will replenish that pipeline. Even when it goes off-patent, Keytruda will remain a preferred drug by doctors.
Today's downward move isn't all that outsized. There's been more clarity on US drug pricing. Seeing a bit of market exhaustion, as US pharma is trading at huge premiums relative to their own history.
Rerating from pricing clarity has already been baked in. R&D pipeline in the sector is a mixed bag, doesn't trust it.
Just announced that Merck will buy Prometheus Biosciences for $10.8 billion. He's been keen on Prometheus ever since they announced phase-2 results of their main drug drug, which treats inflammatory bowel disease. Merck is eager to diversify away from their anti-cancer drug. PB has almost no revenues, but he feels this will be one of the greatest buys in pharma history.