NYSE:BIO | Historical Stock Price | BIO-RAD LABORATORIES, 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
1980-02-27 to 2026-09-04
Data captured

Stock Price Chart

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

$0.91$3.56$13.89$54.12$210.87$821.651980-02-272026-08-27

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

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Historical Stock Price — 1981

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1981-12-31$1.44$1.4462,100
1981-12-30$1.37$1.3754,000
1981-12-29$1.31$1.3159,400
1981-12-28$1.37$1.3756,025
1981-12-24$1.39$1.3936,450
1981-12-23$1.30$1.3036,450
1981-12-22$1.31$1.3120,925
1981-12-21$1.30$1.3051,300
1981-12-18$1.33$1.3318,900
1981-12-17$1.33$1.3331,725
1981-12-16$1.37$1.3710,125
1981-12-15$1.35$1.3522,950
1981-12-14$1.35$1.3518,900
1981-12-11$1.39$1.3912,150
1981-12-10$1.37$1.378,100
1981-12-09$1.43$1.4328,350
1981-12-08$1.37$1.3728,350
1981-12-07$1.43$1.4321,600
1981-12-04$1.44$1.4436,450
1981-12-03$1.46$1.4635,100
1981-12-02$1.46$1.4612,150
1981-12-01$1.46$1.4620,925
1981-11-30$1.44$1.4421,600
1981-11-27$1.46$1.4610,800
1981-11-25$1.52$1.529,450
1981-11-24$1.52$1.5229,025
1981-11-23$1.54$1.5421,600
1981-11-20$1.50$1.5010,800
1981-11-19$1.46$1.4635,775
1981-11-18$1.46$1.4629,025
1981-11-17$1.52$1.5212,825
1981-11-16$1.54$1.5441,850
1981-11-13$1.52$1.5227,000
1981-11-12$1.56$1.5620,250
1981-11-11$1.63$1.632,700
1981-11-10$1.63$1.6316,200
1981-11-09$1.63$1.6315,525
1981-11-06$1.63$1.630
1981-11-05$1.63$1.634,725
1981-11-04$1.69$1.694,725
1981-11-03$1.70$1.7024,300
1981-11-02$1.69$1.6921,600
1981-10-30$1.63$1.634,725
1981-10-29$1.57$1.5720,925
1981-10-28$1.61$1.61236,925
1981-10-27$1.57$1.5767,500
1981-10-26$1.54$1.5435,775
1981-10-23$1.67$1.671,350
1981-10-22$1.67$1.679,450
1981-10-21$1.63$1.63203,850
1981-10-20$1.54$1.5424,300
1981-10-19$1.69$1.6910,800
1981-10-16$1.76$1.7617,550
1981-10-15$1.69$1.6966,150
1981-10-14$1.74$1.7414,850
1981-10-13$1.80$1.8020,250
1981-10-12$1.76$1.7613,500
1981-10-09$1.78$1.7820,250
1981-10-08$1.78$1.785,400
1981-10-07$1.78$1.7810,800
1981-10-06$1.74$1.7421,600
1981-10-05$1.78$1.7820,925
1981-10-02$1.81$1.8110,800
1981-10-01$1.78$1.7820,250
1981-09-30$1.83$1.837,425
1981-09-29$1.80$1.8016,200
1981-09-28$1.69$1.6923,625
1981-09-25$1.70$1.7010,125
1981-09-24$1.81$1.819,450
1981-09-23$1.80$1.8018,225
1981-09-22$1.89$1.8924,300
1981-09-21$1.93$1.9316,200
1981-09-18$1.96$1.962,700
1981-09-17$2.00$2.0027,000
1981-09-16$2.07$2.0770,200
1981-09-15$2.13$2.134,725
1981-09-14$2.13$2.1316,200
1981-09-11$2.15$2.15132,300
1981-09-10$2.13$2.1335,100
1981-09-09$2.28$2.2812,825
1981-09-08$2.31$2.3121,600
1981-09-04$2.31$2.318,100
1981-09-03$2.33$2.3314,850
1981-09-02$2.37$2.37141,075
1981-09-01$2.33$2.3314,850
1981-08-31$2.31$2.316,750
1981-08-28$2.37$2.3716,200
1981-08-27$2.31$2.312,025
1981-08-26$2.33$2.335,400
1981-08-25$2.37$2.3732,400
1981-08-24$2.37$2.3739,825
1981-08-21$2.37$2.3720,250
1981-08-20$2.41$2.4142,525
1981-08-19$2.31$2.3116,200
1981-08-18$2.31$2.3120,250
1981-08-17$2.41$2.416,750
1981-08-14$2.39$2.3921,600
1981-08-13$2.44$2.4415,525
1981-08-12$2.37$2.3733,750
1981-08-11$2.37$2.372,700
1981-08-10$2.39$2.396,750
1981-08-07$2.44$2.449,450
1981-08-06$2.44$2.447,425
1981-08-05$2.44$2.448,100
1981-08-04$2.48$2.488,100
1981-08-03$2.46$2.466,750
1981-07-31$2.44$2.4410,800
1981-07-30$2.44$2.444,050
1981-07-29$2.44$2.442,700
1981-07-28$2.46$2.465,400
1981-07-27$2.39$2.3910,800
1981-07-24$2.39$2.394,725
1981-07-23$2.39$2.3913,500
1981-07-22$2.44$2.4415,525
1981-07-21$2.39$2.3921,600
1981-07-20$2.44$2.448,100
1981-07-17$2.46$2.4613,500
1981-07-16$2.52$2.529,450
1981-07-15$2.46$2.4613,500
1981-07-14$2.48$2.4818,225
1981-07-13$2.54$2.5417,550
1981-07-10$2.52$2.5212,825
1981-07-09$2.50$2.5012,150
1981-07-08$2.48$2.485,400
1981-07-07$2.50$2.5014,850
1981-07-06$2.48$2.488,100
1981-07-02$2.48$2.482,025
1981-07-01$2.48$2.487,425
1981-06-30$2.44$2.4448,600
1981-06-29$2.41$2.4142,525
1981-06-26$2.39$2.3915,525
1981-06-25$2.33$2.3331,725
1981-06-24$2.44$2.4476,950
1981-06-23$2.50$2.5024,300
1981-06-22$2.52$2.5213,500
1981-06-19$2.54$2.5437,800
1981-06-18$2.54$2.5431,725
1981-06-17$2.57$2.5745,225
1981-06-16$2.70$2.7018,900
1981-06-15$2.78$2.7872,225
1981-06-12$2.89$2.898,100
1981-06-11$2.89$2.8916,200
1981-06-10$2.91$2.915,400
1981-06-09$2.93$2.935,400
1981-06-08$2.96$2.967,425
1981-06-05$2.98$2.9813,500
1981-06-04$2.91$2.9135,100
1981-06-03$3.04$3.0416,200
1981-06-02$3.04$3.0424,300
1981-06-01$3.11$3.1120,925
1981-05-29$3.11$3.1166,150
1981-05-28$3.06$3.0618,900
1981-05-27$3.11$3.1135,775
1981-05-26$3.06$3.0642,525
1981-05-22$3.04$3.0413,500
1981-05-21$3.07$3.0747,925
1981-05-20$3.11$3.1153,325
1981-05-19$3.11$3.1141,175
1981-05-18$3.15$3.1535,100
1981-05-15$3.17$3.1735,100
1981-05-14$3.15$3.1524,300
1981-05-13$3.07$3.0743,200
1981-05-12$3.15$3.1512,150
1981-05-11$3.06$3.0635,775
1981-05-08$3.02$3.0245,900
1981-05-07$2.98$2.9882,350
1981-05-06$3.02$3.02211,950
1981-05-05$2.93$2.9327,000
1981-05-04$2.81$2.8120,250
1981-05-01$2.78$2.7815,525
1981-04-30$2.83$2.8316,200
1981-04-29$2.87$2.8721,600
1981-04-28$2.93$2.9352,650
1981-04-27$2.96$2.9656,700
1981-04-24$2.98$2.9840,500
1981-04-23$2.96$2.9678,300
1981-04-22$3.11$3.1146,575
1981-04-21$3.15$3.1532,400
1981-04-20$3.20$3.2010,800
1981-04-16$3.17$3.1721,600
1981-04-15$3.06$3.0632,400
1981-04-14$3.07$3.079,450
1981-04-13$3.06$3.067,425
1981-04-10$3.11$3.117,425
1981-04-09$3.07$3.0721,600
1981-04-08$3.06$3.0620,925
1981-04-07$3.07$3.0741,175
1981-04-06$3.04$3.0435,775
1981-04-03$3.02$3.0218,900
1981-04-02$3.02$3.0234,425
1981-04-01$3.13$3.1316,200
1981-03-31$3.15$3.1521,600
1981-03-30$3.20$3.2015,525
1981-03-27$3.15$3.1510,800
1981-03-26$3.15$3.1523,625
1981-03-25$3.20$3.2044,550
1981-03-24$3.20$3.2031,725
1981-03-23$3.15$3.1518,225
1981-03-20$3.17$3.1720,250
1981-03-19$3.13$3.1325,650
1981-03-18$3.15$3.1518,900
1981-03-17$3.20$3.2041,850
1981-03-16$3.41$3.4125,650
1981-03-13$3.26$3.2656,025
1981-03-12$3.06$3.0631,725
1981-03-11$3.04$3.0413,500
1981-03-10$3.02$3.0221,600
1981-03-09$2.91$2.9131,725
1981-03-06$2.91$2.9116,200
1981-03-05$2.87$2.8714,850
1981-03-04$2.91$2.918,100
1981-03-03$2.87$2.8714,850
1981-03-02$2.96$2.965,400
1981-02-27$2.96$2.9626,325
1981-02-26$2.91$2.9149,950
1981-02-25$2.78$2.7818,900
1981-02-24$2.83$2.8363,450
1981-02-23$2.91$2.9131,725
1981-02-20$3.02$3.0210,800
1981-02-19$3.07$3.0729,700
1981-02-18$3.07$3.0717,550
1981-02-17$3.13$3.1315,525
1981-02-13$3.11$3.1143,200
1981-02-12$3.07$3.0756,700
1981-02-11$3.02$3.02142,425
1981-02-10$3.28$3.2845,900
1981-02-09$3.24$3.2421,600
1981-02-06$3.26$3.2613,500
1981-02-05$3.31$3.3116,200
1981-02-04$3.28$3.2818,900
1981-02-03$3.20$3.2023,625
1981-02-02$3.31$3.31123,525
1981-01-30$3.54$3.5432,400
1981-01-29$3.52$3.5244,550
1981-01-28$3.39$3.3930,375
1981-01-27$3.39$3.3956,025
1981-01-26$3.43$3.4393,825
1981-01-23$3.67$3.67112,725
1981-01-22$3.26$3.2681,000
1981-01-21$3.07$3.0724,300
1981-01-20$2.96$2.9628,350
1981-01-19$3.07$3.0759,400
1981-01-16$3.06$3.0629,700
1981-01-15$3.04$3.0448,600
1981-01-14$3.00$3.0055,350
1981-01-13$3.11$3.1156,025
1981-01-12$3.00$3.00110,700
1981-01-09$2.80$2.8034,425
1981-01-08$2.76$2.7686,400
1981-01-07$2.96$2.96172,125
1981-01-06$3.13$3.1385,050
1981-01-05$3.11$3.11164,700
1981-01-02$2.98$2.9879,650