Historical Stock Price
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Video: Compound Annual Growth Rate (CAGR) Definition
Date Open High Low Close Volume
07/06/2026 $129.31 $130.00 $125.62 $126.78 9.50M
07/07/2026 $128.77 $129.69 $127.89 $128.86 10.17M
07/08/2026 $128.34 $128.99 $125.14 $125.99 7.91M
07/09/2026 $125.48 $128.07 $124.45 $125.07 6.98M
07/10/2026 $125.12 $125.56 $122.90 $123.54 8.39M
Merck & Co., Inc. is a global health care company. It offers health solutions through its prescription medicines, including biologic therapies, vaccines and animal health products. Its Pharmaceutical segment includes human health pharmaceuticals and vaccine products. Human health pharmaceutical products include therapeutic and preventive agents, sold by prescription, for the treatment of human disorders. Its Animal Health segment discovers, develops, manufactures and markets a range of veterinary pharmaceutical and vaccine products and health management solutions and services, for the prevention, treatment and control of disease in all livestock and companion animal species.
MRK historical stock prices picture
Merck and (MRK) has the following price history information. Looking back at MRK historical stock prices for the last five trading days, on July 06, 2026, MRK opened at $129.31, traded as high as $130.00 and as low as $125.62, and closed at $126.78. Trading volume was a total of 9.50M shares. On July 07, 2026, MRK opened at $128.77, traded as high as $129.69 and as low as $127.89, and closed at $128.86. Trading volume was a total of 10.17M shares. On July 08, 2026, MRK opened at $128.34, traded as high as $128.99 and as low as $125.14, and closed at $125.99. Trading volume was a total of 7.91M shares. On July 09, 2026, MRK opened at $125.48, traded as high as $128.07 and as low as $124.45, and closed at $125.07. Trading volume was a total of 6.98M shares. On July 10, 2026, MRK opened at $125.12, traded as high as $125.56 and as low as $122.90, and closed at $123.54. Trading volume was a total of 8.39M shares.

MRK Historical Stock Prices By Date:

MRK historical cagr picture

Below, we examine the compound annual growth rate — CAGR for short — of an investment into Merck and shares, starting with a $10,000 purchase of MRK, and working forward through the historical stock price information to today.

Growth of $10,000.00
With Dividends Reinvested

Start date: 07/12/2016
End date: 07/10/2026
Start price/share: $56.87
End price/share: $123.54
Starting shares: 175.84
Ending shares: 238.95
Dividends reinvested/share: $25.58
Total return: 195.20%
Average Annual Total Return: 11.43%
Starting investment: $10,000.00
Ending investment: $29,513.54
Years: 10.00
 
Growth of $10,000.00
Without Dividends Reinvested

Start date: 07/12/2016
End date: 07/10/2026
Start price/share: $56.87
End price/share: $123.54
Dividends collected/share: $25.58
Total return: 162.22%
Average Annual Total Return: 10.12%
Starting investment: $10,000.00
Ending investment: $26,221.77
Years: 10.00
Date Close
07/06/2026$126.78
07/07/2026$128.86
07/08/2026$125.99
07/09/2026$125.07
07/10/2026$123.54
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Also explore: MRK shares outstanding history

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