Merck (MRK) stock: return calculator
Merck & Co. (MRK) shares, one of the world's largest pharmaceutical companies, listed in New York.
Updated
- Type
- Stocks
- Market
- NYSE
- Currency
- USD
- Sector
- Healthcare
- Data range
- 2016-07 – 2026-09 · 10 years
- Source
- Yahoo Finance
US$1,000 invested 10 years ago would be worth today
US$3,412
+241.2% total return
Try your own values in the calculators below.
Return calculator
Pick an amount and a period to see what an investment in Merck (MRK) would be worth today. By default we include reinvested dividends (total return).
Lump sum
What a one-off investment would be worth today.
Monthly investing (DCA)
What investing the same amount every month would be worth.
Estimate before taxes, fees and currency-conversion costs. Past performance does not guarantee future returns.
Investment growth
Performance
Data for the last 10 years · 2016-07 → 2026-09
Comparison with the market
US$1,000 invested vs S&P 500 ETF (SPY):
- Merck (MRK)
- US$3,630
- S&P 500 ETF (SPY)
- US$3,999
Merck (MRK) trailed S&P 500 ETF (SPY) over this period.
Risk & drawdowns
The largest peak-to-trough drop in the window was -39.7%. An investor who bought near the prior peak would have seen the investment fall significantly before recovering.
Scenarios
Illustrative results based on the available data.
US$1,000 5 years ago
US$2,326
lump sum, +132.6% return
US$100/mo for 5 years
US$9,836
invested US$6,100
If it repeats +13.5%/yr for 10 years
US$3,554
projection from US$1,000 (hypothetical)
About Merck (MRK)
Merck & Co. is one of the largest pharmaceutical companies in the world. Its most important medicine is Keytruda, a cancer immunotherapy that is now one of the best-selling drugs on the planet and accounts for a huge share of revenue. It also has a strong vaccines business (such as Gardasil) and an animal-health division.
It trades on the New York Stock Exchange (NYSE) under the ticker MRK and is part of the S&P 500 and Dow Jones indices. It is a defensive, dividend-paying stock. An important distinction: in the United States and Canada it is called Merck & Co., but in the rest of the world it operates as MSD, because there the "Merck" name belongs to the German pharmaceutical company Merck KGaA, a different business.
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Frequently asked questions
How much did Merck (MRK) stock return over the last 10 years?
Do these calculations include dividends?
Do they include taxes or fees?
What currency are the values in?
Does past performance predict the future?
Sources & methodology
Prices: Yahoo Finance. Monthly series, total return (dividends reinvested). Data through 2026-09-21.
Total return assumes dividends are reinvested; you can turn that off to see price-only appreciation. Values are estimates before taxes, fees and currency-conversion costs.
Page generated and reviewed by the Calculadora Capital editorial team. Last updated 2026-09-21.