MRK
Merck & Co., Inc.
stockNYSE
At CloseOct 21, 2026 3:59:57 PM EDT
149.88USD+1.065%(+1.58)8,982,502
Pre-marketOct 21, 2026 9:26:30 AM EDT
147.10USD-0.809%(-1.20)
After-hoursOct 21, 2026 4:11:30 PM EDT
149.80USD-0.057%(-0.09)
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370.04B
Healthcare
Drug Manufacturers-General
HQ
Rahway, NJ, USA
69,000
Previous Close
$148.30
Beta
0.12
52-Week High
$156.92 2026-08-25
52-Week Low
$82.01 2025-11-04
SMA 50
$145.77
SMA 200
$125.27
Avg. Vol 10D
9.57M
Avg. Vol 30D
9.81M
Avg. Vol 90D
10.26M
Relative Vol
0.57
2.47B
2.46B
99.90%
28,271,750
1.15%
2.53
57%/43%
30.80%
16.61%
0.2500%
10,000,000
5,675
4,908
7,268
Oct 29, 2026 (8d)
Mar 17, 2025 · $0.810
Feb 17, 1999 · 2-for-1
66.6B
3.2B
16.1B
Oct 21, 2026
MRK Profile
Merck & Co., Inc. is an American multinational pharmaceutical company headquartered in Rahway, New Jersey, and is named for Merck Group, founded in Germany in 1668, of whom it was once the American arm. The company does business as Merck Sharp & Dohme or MSD outside the United States and Canada.
MRK Performance
| Period | Price | Date | Change | Beta |
|---|---|---|---|---|
| 1W | 147.37 | 2026-10-14 | +1.77% | -0.358 |
| 1M | 149.50 | 2026-09-21 | +0.32% | -0.389 |
| 3M | 126.26 | 2026-07-21 | +18.79% | 0.246 |
| 6M | 112.56 | 2026-04-21 | +33.25% | -0.160 |
| 1Y | 87.62 | 2025-10-21 | +71.18% | 0.120 |
| 2Y | 106.34 | 2024-10-21 | +41.04% | — |
| 5Y | 81.17 | 2021-10-21 | +84.78% | 0.272 |
MRK Stock Summary
Merck & Co., Inc. (NYSE:MRK) stock price today is $149.99, and today's volume is 5,583,407. MRK is up 1.136% today. The 30 day average volume is 9.81M. MRK market cap is $370.04B with 2.47B shares outstanding.