NYSE:MRK | Historical Stock Price | Merck & Co., Inc.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1970-01-02 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.01$3.87$14.90$57.30$220.36$847.481970-01-022026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 1991

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1991-12-31$26.48$45.035,490,682
1991-12-30$26.44$44.964,760,645
1991-12-27$26.30$44.723,272,275
1991-12-26$26.10$44.382,911,344
1991-12-24$25.27$42.963,025,157
1991-12-23$25.45$43.275,054,923
1991-12-20$24.61$41.859,938,184
1991-12-19$24.41$41.513,489,840
1991-12-18$24.19$41.143,367,853
1991-12-17$24.07$40.943,212,539
1991-12-16$23.85$40.562,494,450
1991-12-13$23.70$40.293,695,458
1991-12-12$23.74$40.363,528,826
1991-12-11$23.78$40.435,043,605
1991-12-10$23.97$40.773,729,413
1991-12-09$24.07$40.943,077,976
1991-12-06$24.01$40.833,814,301
1991-12-05$23.76$40.393,321,950
1991-12-04$23.95$40.733,482,923
1991-12-03$23.89$40.634,940,482
1991-12-02$23.56$40.065,601,350
1991-11-29$23.28$39.412,119,685
1991-11-27$22.88$38.743,106,901
1991-11-26$22.78$38.577,788,317
1991-11-25$23.10$39.114,478,314
1991-11-22$22.92$38.815,520,864
1991-11-21$22.98$38.917,988,904
1991-11-20$23.06$39.0410,879,498
1991-11-19$22.09$37.396,674,083
1991-11-18$22.44$38.008,883,686
1991-11-15$21.79$36.896,409,987
1991-11-14$23.00$38.945,625,245
1991-11-13$22.66$38.375,495,083
1991-11-12$22.22$37.634,385,880
1991-11-11$21.55$36.483,090,552
1991-11-08$21.65$36.654,190,952
1991-11-07$21.85$36.994,290,931
1991-11-06$21.85$36.993,232,032
1991-11-05$21.95$37.163,225,744
1991-11-04$21.79$36.892,370,576
1991-11-01$21.67$36.694,131,845
1991-10-31$21.83$36.963,739,474
1991-10-30$21.17$35.852,988,058
1991-10-29$21.21$35.913,514,992
1991-10-28$21.35$36.152,521,488
1991-10-25$20.79$35.213,182,986
1991-10-24$21.07$35.682,703,211
1991-10-23$21.05$35.643,080,491
1991-10-22$20.75$35.142,908,200
1991-10-21$20.91$35.412,505,139
1991-10-18$20.99$35.544,426,752
1991-10-17$20.67$35.003,186,130
1991-10-16$20.79$35.212,518,973
1991-10-15$20.79$35.212,925,806
1991-10-14$20.73$35.102,766,091
1991-10-11$20.50$34.703,776,573
1991-10-10$20.28$34.333,623,146
1991-10-09$20.28$34.333,238,320
1991-10-08$20.38$34.502,484,389
1991-10-07$20.36$34.473,038,990
1991-10-04$20.59$34.872,490,677
1991-10-03$20.63$34.942,049,259
1991-10-02$20.73$35.102,312,098
1991-10-01$20.85$35.312,518,973
1991-09-30$20.69$35.042,535,950
1991-09-27$20.48$34.672,532,806
1991-09-26$20.67$35.002,542,867
1991-09-25$20.65$34.972,225,952
1991-09-24$20.87$35.344,275,211
1991-09-23$20.73$35.102,763,576
1991-09-20$21.07$35.685,996,237
1991-09-19$20.95$35.482,246,702
1991-09-18$20.91$35.412,130,374
1991-09-17$20.95$35.482,889,336
1991-09-16$20.61$34.903,122,621
1991-09-13$20.48$34.674,158,883
1991-09-12$20.79$35.212,837,774
1991-09-11$20.71$35.072,927,693
1991-09-10$20.50$34.703,755,194
1991-09-09$20.59$34.872,740,310
1991-09-06$20.22$34.232,248,589
1991-09-05$20.08$33.993,296,170
1991-09-04$20.00$33.862,542,238
1991-09-03$20.12$34.062,906,942
1991-08-30$20.18$34.162,042,342
1991-08-29$20.46$34.462,791,243
1991-08-28$20.34$34.262,986,171
1991-08-27$19.90$33.532,705,098
1991-08-26$19.98$33.661,836,725
1991-08-23$20.02$33.732,754,773
1991-08-22$20.08$33.833,204,994
1991-08-21$20.10$33.866,094,330
1991-08-20$19.52$32.895,625,874
1991-08-19$19.52$32.899,809,909
1991-08-16$19.86$33.465,923,925
1991-08-15$20.00$33.692,800,046
1991-08-14$20.10$33.862,524,632
1991-08-13$20.20$34.033,061,627
1991-08-12$20.20$34.031,404,110
1991-08-09$20.12$33.891,916,582
1991-08-08$20.28$34.162,532,806
1991-08-07$20.42$34.403,197,448
1991-08-06$20.38$34.334,023,062
1991-08-05$20.10$33.862,298,893
1991-08-02$20.30$34.202,725,219
1991-08-01$20.40$34.362,757,917
1991-07-31$20.48$34.503,238,949
1991-07-30$20.26$34.134,596,528
1991-07-29$19.84$33.433,287,366
1991-07-26$19.60$33.023,152,803
1991-07-25$19.58$32.992,914,488
1991-07-24$19.28$32.492,090,131
1991-07-23$19.12$32.222,599,459
1991-07-22$19.20$32.353,257,184
1991-07-19$19.26$32.455,088,878
1991-07-18$19.32$32.563,625,032
1991-07-17$19.20$32.351,882,627
1991-07-16$19.24$32.422,498,222
1991-07-15$19.34$32.594,133,731
1991-07-12$19.06$32.123,169,781
1991-07-11$18.83$31.723,207,509
1991-07-10$18.69$31.483,094,954
1991-07-09$18.75$31.582,386,296
1991-07-08$19.00$32.022,868,586
1991-07-05$18.71$31.521,228,675
1991-07-03$18.65$31.422,136,662
1991-07-02$18.98$31.992,801,304
1991-07-01$18.96$31.953,656,472
1991-06-28$18.47$31.113,513,106
1991-06-27$18.85$31.752,584,368
1991-06-26$18.71$31.524,310,424
1991-06-25$18.55$31.253,579,130
1991-06-24$18.19$30.652,217,149
1991-06-21$18.49$31.156,507,451
1991-06-20$18.43$31.054,009,229
1991-06-19$18.39$30.983,879,067
1991-06-18$18.53$31.223,155,318
1991-06-17$18.79$31.652,635,930
1991-06-14$18.81$31.684,267,037
1991-06-13$18.41$31.015,679,950
1991-06-12$18.51$31.185,131,008
1991-06-11$18.37$30.954,455,048
1991-06-10$18.17$30.612,749,742
1991-06-07$18.23$30.713,263,472
1991-06-06$18.27$30.783,040,877
1991-06-05$18.49$31.153,362,194
1991-06-04$18.55$31.254,875,086
1991-06-03$18.47$31.115,386,301
1991-05-31$18.91$31.707,029,984
1991-05-30$19.16$32.133,600,509
1991-05-29$19.32$32.402,715,787
1991-05-28$19.40$32.533,133,939
1991-05-24$19.22$32.232,451,691
1991-05-23$19.26$32.303,510,590
1991-05-22$19.34$32.432,529,662
1991-05-21$19.38$32.505,076,931
1991-05-20$19.02$31.904,375,819
1991-05-17$18.92$31.738,190,120
1991-05-16$18.83$31.574,477,685
1991-05-15$18.57$31.135,044,234
1991-05-14$18.65$31.273,404,323
1991-05-13$18.85$31.603,494,870
1991-05-10$18.83$31.575,427,173
1991-05-09$18.91$31.704,894,579
1991-05-08$18.61$31.204,098,518
1991-05-07$18.69$31.336,111,936
1991-05-06$18.51$31.033,843,226
1991-05-03$18.35$30.773,581,016
1991-05-02$17.95$30.105,007,763
1991-05-01$17.73$29.734,927,277
1991-04-30$17.14$28.734,869,427
1991-04-29$17.14$28.734,421,722
1991-04-26$17.33$29.072,932,723
1991-04-25$17.43$29.233,857,688
1991-04-24$17.37$29.134,134,989
1991-04-23$17.47$29.303,088,666
1991-04-22$17.47$29.304,356,326
1991-04-19$17.65$29.606,975,907
1991-04-18$18.07$30.302,794,387
1991-04-17$18.25$30.604,858,738
1991-04-16$17.97$30.134,942,997
1991-04-15$17.43$29.232,823,941
1991-04-12$17.26$28.932,700,067
1991-04-11$17.22$28.872,551,670
1991-04-10$16.96$28.432,487,533
1991-04-09$16.96$28.433,184,872
1991-04-08$17.18$28.802,416,478
1991-04-05$16.98$28.473,725,640
1991-04-04$17.24$28.903,423,816
1991-04-03$17.26$28.933,596,736
1991-04-02$17.29$29.002,848,464
1991-04-01$16.78$28.133,264,101
1991-03-28$16.78$28.131,998,326
1991-03-27$16.96$28.433,924,341
1991-03-26$17.20$28.834,080,912
1991-03-25$16.60$27.832,097,048
1991-03-22$16.50$27.672,954,102
1991-03-21$16.38$27.474,040,040
1991-03-20$16.50$27.675,551,046
1991-03-19$16.14$27.078,057,443
1991-03-18$16.84$28.235,056,810
1991-03-15$17.18$28.808,589,408
1991-03-14$17.16$28.776,099,989
1991-03-13$16.86$28.272,558,587
1991-03-12$16.78$28.134,825,411
1991-03-11$16.98$28.473,186,758
1991-03-08$16.80$28.174,594,642
1991-03-07$16.58$27.803,175,440
1991-03-06$16.44$27.574,236,226
1991-03-05$16.54$27.733,656,472
1991-03-04$16.38$27.474,038,782
1991-03-01$16.26$27.123,992,251
1991-02-28$16.24$27.092,751,629
1991-02-27$16.40$27.353,430,104
1991-02-26$16.18$26.995,576,827
1991-02-25$16.42$27.385,389,445
1991-02-22$16.18$26.995,607,010
1991-02-21$16.06$26.793,997,282
1991-02-20$16.02$26.723,911,136
1991-02-19$16.28$27.156,820,594
1991-02-15$16.22$27.0511,013,432
1991-02-14$15.53$25.895,911,978
1991-02-13$15.68$26.164,776,365
1991-02-12$15.66$26.126,553,982
1991-02-11$15.96$26.626,359,054
1991-02-08$15.51$25.865,235,389
1991-02-07$15.19$25.336,552,725
1991-02-06$15.51$25.867,936,085
1991-02-05$15.27$25.465,991,206
1991-02-04$15.03$25.065,124,091
1991-02-01$14.65$24.435,803,195
1991-01-31$14.55$24.273,785,376
1991-01-30$14.57$24.305,573,683
1991-01-29$14.25$23.773,587,304
1991-01-28$14.19$23.672,331,590
1991-01-25$14.21$23.705,433,461
1991-01-24$14.29$23.844,129,958
1991-01-23$14.17$23.644,350,667
1991-01-22$13.94$23.244,060,790
1991-01-21$13.94$23.242,827,714
1991-01-18$14.07$23.4713,416,077
1991-01-17$13.98$23.319,220,723
1991-01-16$13.48$22.483,125,136
1991-01-15$13.28$22.153,221,342
1991-01-14$13.18$21.985,407,680
1991-01-11$13.30$22.183,497,386
1991-01-10$13.26$22.113,509,962
1991-01-09$13.08$21.816,651,446
1991-01-08$13.24$22.086,409,358
1991-01-07$13.20$22.016,252,787
1991-01-04$13.56$22.617,219,882
1991-01-03$13.78$22.974,641,173
1991-01-02$14.23$23.745,369,323