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CVS vs MRK

A side-by-side look at CVS and MRK, updated throughout the trading session.

Performance, normalized

Z-scored closes: both paths on one scale, price levels aside.

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CVS vs MRK: how they differ

CVS Health Corp. (CVS) and Merck & Co., Inc. (MRK) are both in the Healthcare sector: CVS is classified in Medical - Healthcare Plans, MRK in Drug Manufacturers - General. Both trade on NYSE.

CVS trades about 8.0 million shares a day on average, against 10.3 million for MRK. CVS has the higher beta (0.60 against 0.22 for MRK), meaning it has historically moved more with the broad market. Over the trailing twelve months, CVS paid $2.66 per share in dividends and MRK paid $3.40 per share.

Figures as of October 25, 2026.

The chart Z-score-normalizes each closing series, computing (close − mean) ÷ standard deviation over the window, so both paths share one scale regardless of price level, and correlation is computed on daily returns. Figures update throughout the trading session. Nothing on this page is financial advice.