StockData
Merck & Co., Inc. logo

Merck & Co., Inc. (MRK) stock

MRKNYSEPharmaceutical PreparationsFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 7, 2026Score 9/30242% above fair value
$146.33+5.40 (+3.83%)

Close on Oct 29, 2026Market cap $361.02BP/E 117.1Yield 2.24%

Price history

Merck share prices for every week, newest first. Adjusted for stock splits, not for dividends.

Download all as CSV
Close, Oct 29, 2026
$146.33
+3.83% on the day
52-week range
$82.01 – $156.92
-6.7% from the high
Change over 52 weeks
+69.0%
From $86.58 on Oct 29, 2025
Average volume
10.07M
Shares a day, last 90 sessions
Week ofOpenHighLowCloseChangeVolume
Oct 26, 2026$145.89$149.26$139.21$146.33+0.73%43,828,546
Oct 19, 2026$145.00$154.02$143.41$145.27-0.47%56,766,383
Oct 12, 2026$145.75$152.34$141.58$145.95+0.24%51,306,030
Oct 5, 2026$143.67$146.68$138.80$145.60+0.90%41,612,676
Sep 28, 2026$147.65$150.36$142.73$144.30-3.01%43,657,359
Sep 21, 2026$146.79$153.57$145.60$148.78+1.30%47,478,959
Sep 14, 2026$146.42$147.84$142.32$146.87+2.04%65,161,298
Sep 8, 2026$148.41$149.60$143.68$143.93-4.26%35,957,719
Aug 31, 2026$147.00$152.80$145.95$150.33+1.33%40,860,212
Aug 24, 2026$150.72$156.92$145.75$148.35-2.75%54,270,904
Aug 17, 2026$134.95$154.49$134.55$152.55+12.30%83,718,973
Aug 10, 2026$128.29$135.97$128.24$135.84+5.65%38,561,093
Aug 3, 2026$129.87$131.47$126.22$128.58-1.24%47,872,174
Jul 27, 2026$131.01$135.05$127.25$130.20-0.66%40,286,851
Jul 20, 2026$127.29$131.71$124.10$131.07+2.80%37,551,908
Jul 13, 2026$123.58$131.74$120.16$127.50+3.21%50,724,014
Jul 6, 2026$129.31$130.00$122.90$123.54-4.65%42,948,007
Jun 29, 2026$127.65$130.29$124.71$129.56+0.70%40,005,869
Jun 22, 2026$113.97$128.78$113.00$128.66+12.99%64,409,783
Jun 15, 2026$118.71$118.95$111.57$113.87-4.35%66,042,656
Jun 8, 2026$120.85$122.71$117.26$119.05-1.44%56,390,854
Jun 1, 2026$117.55$123.46$114.36$120.79+1.74%57,844,509
May 26, 2026$122.90$123.13$118.19$118.72-3.01%43,034,875
May 18, 2026$111.43$122.66$110.97$122.41+9.90%46,889,940
May 11, 2026$112.15$114.07$110.94$111.380.00%40,291,543
May 4, 2026$111.41$114.62$110.75$111.38-0.70%35,879,735
Apr 27, 2026$111.22$114.54$107.90$112.16+0.23%55,170,290
Apr 20, 2026$119.15$119.36$111.50$111.90-6.02%42,082,167
Apr 13, 2026$121.03$121.30$114.71$119.07-1.94%54,089,427
Apr 6, 2026$120.41$124.00$116.50$121.42+0.46%43,896,393
Mar 30, 2026$120.57$122.19$117.22$120.87+1.04%34,536,864
Mar 23, 2026$116.17$121.07$114.02$119.63+4.77%41,571,563
Mar 16, 2026$115.34$116.80$112.72$114.18-1.24%68,211,871
Mar 9, 2026$114.98$119.00$114.11$115.61-0.16%40,290,675
Mar 2, 2026$123.51$123.70$113.82$115.79-6.49%54,933,595
Feb 23, 2026$122.31$125.14$119.00$123.82+1.28%57,167,984
Feb 17, 2026$122.36$123.08$120.39$122.26+0.70%36,079,343
Feb 9, 2026$121.41$123.33$116.10$121.41-0.43%62,449,161
Feb 2, 2026$110.12$122.66$109.95$121.93+10.57%102,842,109
Jan 26, 2026$107.80$110.54$106.03$110.27+1.93%57,935,436
Jan 20, 2026$108.11$111.97$106.93$108.18-0.60%47,937,598
Jan 12, 2026$110.97$111.58$107.22$108.83-1.54%58,603,027
Jan 5, 2026$107.01$112.90$105.80$110.53+3.83%77,984,249
Dec 29, 2025$106.85$107.59$104.43$106.45-0.31%32,134,953
Dec 22, 2025$100.63$107.05$100.40$106.78+5.63%42,339,452
Dec 15, 2025$99.99$102.20$96.79$101.09+0.79%105,814,902
Dec 8, 2025$99.38$100.66$96.06$100.30+0.58%70,859,627
Dec 1, 2025$104.72$105.68$99.19$99.72-4.87%67,716,029
Nov 24, 2025$99.12$105.84$99.12$104.83+7.23%69,324,891
Nov 17, 2025$93.23$100.27$92.11$97.76+5.21%92,878,180
Nov 10, 2025$86.69$95.08$85.80$92.92+7.70%72,692,348
Nov 3, 2025$85.77$86.59$82.01$86.28+0.35%55,977,796

Seasonality

MRK return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average1.4%-0.5%1.9%0.1%0.5%3.1%-0.8%3.7%-0.7%1.1%3.4%2.1%
Months up5 of 104 of 107 of 104 of 107 of 106 of 103 of 107 of 104 of 106 of 106 of 97 of 9
20264.8%12.3%-2.1%-9.2%8.7%9.0%1.3%13.5%-1.1%0.7%
2025-0.7%-6.6%-1.9%-5.1%-9.8%4.1%-1.3%7.7%0.8%2.4%21.9%1.3%
202410.8%5.3%4.4%-2.1%-2.8%-0.8%-8.6%4.7%-3.5%-9.9%-0.7%-1.3%
2023-3.2%-1.1%0.8%8.5%-4.4%5.2%-7.6%2.2%-4.9%-0.2%-0.2%7.2%
20226.3%-6.0%8.1%8.1%3.8%-0.1%-2.0%-4.5%1.7%17.5%8.8%1.4%
2021-5.8%-5.8%7.1%-3.4%1.9%8.3%-1.2%-0.8%-0.7%17.2%-14.9%3.3%
2020-6.1%-10.4%1.3%3.1%1.7%-3.4%3.8%6.3%-2.0%-9.3%6.9%2.6%
2019-2.6%9.2%3.0%-5.4%0.6%6.6%-1.0%4.2%-2.0%2.9%0.6%5.0%
20185.3%-8.5%1.3%8.1%1.1%2.8%8.5%4.1%4.1%3.8%7.8%-3.0%
20175.3%6.3%-2.8%-1.9%4.5%-0.8%-0.3%-0.0%1.0%-14.0%0.3%2.7%