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 — 1985

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1985-12-31$5.06$5.0672,900——
1985-12-30$5.00$5.0041,850——
1985-12-27$5.06$5.0614,400——
1985-12-26$4.97$4.971,800——
1985-12-24$4.94$4.9423,400——
1985-12-23$5.11$5.1124,300——
1985-12-20$5.14$5.1489,100——
1985-12-19$5.22$5.2218,000——
1985-12-18$5.11$5.1121,600——
1985-12-17$5.06$5.0633,750——
1985-12-16$5.03$5.0377,400——
1985-12-13$5.31$5.31104,400——
1985-12-12$5.11$5.11163,350——
1985-12-11$5.14$5.1428,350——
1985-12-10$5.31$5.3195,400——
1985-12-09$5.25$5.25131,400——
1985-12-06$4.89$4.89279,900——
1985-12-05$4.64$4.64592,200——
1985-12-04$4.61$4.61304,200——
1985-12-03$4.22$4.2273,800——
1985-12-02$4.25$4.25218,250——
1985-11-29$4.14$4.14322,650——
1985-11-27$3.64$3.64342,900——
1985-11-26$3.69$3.6955,350——
1985-11-25$3.78$3.7816,200——
1985-11-22$3.86$3.866,300——
1985-11-21$3.78$3.789,000——
1985-11-20$3.78$3.7816,200——
1985-11-19$3.81$3.819,900——
1985-11-18$3.81$3.814,950——
1985-11-15$3.81$3.8114,400——
1985-11-14$3.75$3.7522,500——
1985-11-13$3.56$3.563,600——
1985-11-12$3.56$3.565,400——
1985-11-11$3.53$3.531,350——
1985-11-08$3.56$3.563,600——
1985-11-07$3.56$3.569,000——
1985-11-06$3.39$3.3913,950——
1985-11-05$3.31$3.3132,400——
1985-11-04$3.19$3.1910,800——
1985-11-01$3.19$3.199,900——
1985-10-31$3.28$3.280——
1985-10-30$3.28$3.284,950——
1985-10-29$3.28$3.2812,600——
1985-10-28$3.28$3.2823,400——
1985-10-25$3.44$3.441,800——
1985-10-24$3.44$3.447,200——
1985-10-23$3.36$3.3612,150——
1985-10-22$3.19$3.1926,100——
1985-10-21$2.94$2.943,600——
1985-10-18$2.94$2.9413,500——
1985-10-17$3.00$3.0010,800——
1985-10-16$3.00$3.008,100——
1985-10-15$2.86$2.8611,700——
1985-10-14$2.94$2.944,500——
1985-10-11$2.94$2.946,750——
1985-10-10$2.94$2.943,600——
1985-10-09$2.86$2.869,000——
1985-10-08$2.92$2.9217,100——
1985-10-07$3.03$3.034,500——
1985-10-04$3.06$3.06450——
1985-10-03$3.06$3.061,350——
1985-10-02$3.06$3.065,400——
1985-10-01$3.06$3.061,800——
1985-09-30$3.11$3.1115,750——
1985-09-26$3.19$3.190——
1985-09-25$3.19$3.190——
1985-09-24$3.19$3.199,000——
1985-09-23$3.11$3.112,700——
1985-09-20$3.11$3.115,400——
1985-09-19$3.11$3.119,000——
1985-09-18$3.06$3.06450——
1985-09-17$3.06$3.063,600——
1985-09-16$3.06$3.060——
1985-09-13$3.06$3.0621,600——
1985-09-12$3.19$3.193,150——
1985-09-11$3.25$3.256,750——
1985-09-10$3.28$3.2812,150——
1985-09-09$3.31$3.3136,900——
1985-09-06$3.19$3.1910,350——
1985-09-05$3.31$3.3123,400——
1985-09-04$3.28$3.2828,350——
1985-09-03$3.44$3.448,550——
1985-08-30$3.56$3.565,400——
1985-08-29$3.56$3.561,800——
1985-08-28$3.56$3.5612,150——
1985-08-27$3.56$3.567,200——
1985-08-26$3.56$3.561,800——
1985-08-23$3.64$3.643,150——
1985-08-22$3.64$3.64450——
1985-08-21$3.64$3.641,800——
1985-08-20$3.64$3.640——
1985-08-19$3.64$3.64900——
1985-08-16$3.61$3.61450——
1985-08-15$3.64$3.643,600——
1985-08-14$3.69$3.691,800——
1985-08-13$3.72$3.721,800——
1985-08-12$3.72$3.723,150——
1985-08-09$3.81$3.812,700——
1985-08-08$3.69$3.694,950——
1985-08-07$3.81$3.819,000——
1985-08-06$4.00$4.002,700——
1985-08-05$4.00$4.0019,800——
1985-08-02$3.97$3.976,300——
1985-08-01$3.94$3.941,800——
1985-07-31$3.93$3.934,725——
1985-07-30$3.91$3.9118,225——
1985-07-29$4.07$4.07675——
1985-07-26$4.09$4.092,700——
1985-07-25$4.15$4.1513,500——
1985-07-24$4.13$4.130——
1985-07-23$4.13$4.138,100——
1985-07-22$4.17$4.1723,625——
1985-07-19$4.20$4.2053,325——
1985-07-18$4.07$4.0710,125——
1985-07-17$4.04$4.0450,625——
1985-07-16$4.00$4.0021,600——
1985-07-15$4.13$4.1341,850——
1985-07-12$3.87$3.8710,800——
1985-07-11$3.74$3.7413,500——
1985-07-10$3.65$3.6532,400——
1985-07-09$3.61$3.614,050——
1985-07-08$3.65$3.652,025——
1985-07-05$3.72$3.725,400——
1985-07-03$3.76$3.7610,125——
1985-07-02$3.81$3.814,725——
1985-07-01$3.81$3.812,025——
1985-06-28$3.81$3.8110,800——
1985-06-27$3.78$3.781,350——
1985-06-26$3.78$3.788,100——
1985-06-25$3.74$3.7489,775——
1985-06-24$3.74$3.7420,250——
1985-06-21$3.63$3.6312,150——
1985-06-20$3.74$3.741,350——
1985-06-19$3.74$3.7439,825——
1985-06-18$3.54$3.546,750——
1985-06-17$3.52$3.522,700——
1985-06-14$3.56$3.565,400——
1985-06-13$3.54$3.545,400——
1985-06-12$3.56$3.56675——
1985-06-11$3.56$3.5623,625——
1985-06-10$3.37$3.377,425——
1985-06-07$3.30$3.3016,200——
1985-06-06$3.15$3.15675——
1985-06-05$3.15$3.152,700——
1985-06-04$3.11$3.11675——
1985-06-03$3.13$3.130——
1985-05-31$3.13$3.130——
1985-05-30$3.13$3.130——
1985-05-29$3.13$3.132,700——
1985-05-28$3.11$3.1115,525——
1985-05-24$3.13$3.139,450——
1985-05-23$3.17$3.178,100——
1985-05-22$3.31$3.318,100——
1985-05-21$3.43$3.43675——
1985-05-20$3.48$3.487,425——
1985-05-17$3.56$3.56675——
1985-05-16$3.59$3.590——
1985-05-15$3.59$3.5918,225——
1985-05-14$3.54$3.5422,950——
1985-05-13$3.52$3.5218,900——
1985-05-10$3.48$3.4832,400——
1985-05-09$3.39$3.3928,350——
1985-05-08$3.41$3.410——
1985-05-07$3.41$3.4113,500——
1985-05-06$3.39$3.3937,125——
1985-05-03$3.33$3.3329,025——
1985-05-02$3.04$3.0412,825——
1985-05-01$3.00$3.0068,850——
1985-04-30$2.78$2.781,350——
1985-04-29$2.76$2.765,400——
1985-04-26$2.78$2.784,050——
1985-04-25$2.74$2.74675——
1985-04-24$2.74$2.740——
1985-04-23$2.74$2.7412,150——
1985-04-22$2.67$2.672,700——
1985-04-19$2.65$2.654,725——
1985-04-18$2.65$2.652,700——
1985-04-17$2.65$2.656,750——
1985-04-16$2.65$2.65675——
1985-04-15$2.65$2.6551,975——
1985-04-12$2.52$2.52675——
1985-04-11$2.52$2.5216,200——
1985-04-10$2.44$2.44675——
1985-04-09$2.44$2.442,700——
1985-04-08$2.44$2.44675——
1985-04-04$2.44$2.44675——
1985-04-03$2.48$2.48675——
1985-04-02$2.46$2.4610,125——
1985-04-01$2.54$2.5412,825——
1985-03-29$2.57$2.579,450——
1985-03-28$2.57$2.572,025——
1985-03-27$2.57$2.5710,800——
1985-03-26$2.54$2.548,100——
1985-03-25$2.50$2.5010,125——
1985-03-22$2.46$2.4610,800——
1985-03-21$2.41$2.4120,250——
1985-03-20$2.39$2.398,100——
1985-03-19$2.37$2.37675——
1985-03-18$2.37$2.37675——
1985-03-15$2.37$2.376,750——
1985-03-14$2.33$2.3310,800——
1985-03-13$2.26$2.2618,225——
1985-03-12$2.26$2.2626,325——
1985-03-11$2.15$2.155,400——
1985-03-08$2.15$2.158,100——
1985-03-07$2.13$2.1320,250——
1985-03-06$2.15$2.154,725——
1985-03-05$2.15$2.151,350——
1985-03-04$2.15$2.152,025——
1985-03-01$2.15$2.152,700——
1985-02-28$2.13$2.135,400——
1985-02-27$2.13$2.132,700——
1985-02-26$2.13$2.13675——
1985-02-25$2.13$2.137,425——
1985-02-22$2.15$2.1531,725——
1985-02-21$2.19$2.195,400——
1985-02-20$2.20$2.20675——
1985-02-19$2.19$2.19675——
1985-02-15$2.19$2.191,350——
1985-02-14$2.20$2.200——
1985-02-13$2.20$2.202,025——
1985-02-12$2.24$2.241,350——
1985-02-11$2.20$2.2020,250——
1985-02-08$2.24$2.242,700——
1985-02-07$2.26$2.267,425——
1985-02-06$2.20$2.207,425——
1985-02-05$2.19$2.1914,850——
1985-02-04$2.24$2.249,450——
1985-02-01$2.30$2.3030,375——
1985-01-31$2.52$2.520——
1985-01-30$2.52$2.5212,150——
1985-01-29$2.44$2.442,700——
1985-01-28$2.44$2.4464,125——
1985-01-25$2.30$2.3043,200——
1985-01-24$2.24$2.2415,525——
1985-01-23$2.24$2.2435,775——
1985-01-22$2.13$2.132,700——
1985-01-21$2.13$2.131,350——
1985-01-18$2.13$2.130——
1985-01-17$2.13$2.13675——
1985-01-16$2.15$2.154,725——
1985-01-15$2.13$2.132,700——
1985-01-14$2.13$2.13675——
1985-01-11$2.13$2.13675——
1985-01-10$2.13$2.13675——
1985-01-09$2.13$2.131,350——
1985-01-08$2.13$2.130——
1985-01-07$2.13$2.136,750——
1985-01-04$2.13$2.130——
1985-01-03$2.13$2.130——
1985-01-02$2.13$2.130——