Merck Turned $1,000 Into $3,395 in a Decade but the Real Story Happened in the Last Year

Merck Turned $1,000 Into $3,395 in a Decade but the Real Story Happened in the Last Year

Merck spent most of a decade trailing the S&P 500, then something unusual happened in a single year that changed the entire math. Whether that burst signals a new chapter or a one-time event comes down to a drug patent clock and a $14.8 billion bet on acquisitions.