NASDAQ:BKYI | Historical Stock Price | BIO KEY INTERNATIONAL 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
1997-02-21 to 2026-09-02
Data captured

Stock Price Chart

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

$2.81$31.19$345.85$3,835.57$42,537.13$471,744.001997-02-212026-08-27

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

View year

Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$5.40$5.4048,390
2025-12-30$5.80$5.8020,070
2025-12-29$5.60$5.6047,730
2025-12-26$6.10$6.1022,650
2025-12-24$6.20$6.205,100
2025-12-23$6.30$6.3011,220
2025-12-22$6.30$6.3021,230
2025-12-19$6.40$6.4036,860
2025-12-18$6.50$6.5021,170
2025-12-17$6.40$6.4017,770
2025-12-16$6.60$6.6030,720
2025-12-15$6.60$6.6024,970
2025-12-12$7.00$7.0021,840
2025-12-11$6.90$6.9024,380
2025-12-10$7.30$7.3030,780
2025-12-09$7.40$7.4023,470
2025-12-08$7.70$7.7027,260
2025-12-05$7.70$7.7014,300
2025-12-04$7.60$7.6021,840
2025-12-03$7.30$7.3029,830
2025-12-02$7.10$7.1060,780
2025-12-01$7.30$7.3068,920
2025-11-28$8.10$8.1018,880
2025-11-26$8.20$8.2027,970
2025-11-25$8.00$8.0036,420
2025-11-24$8.30$8.3041,420
2025-11-21$8.80$8.8055,340
2025-11-20$9.20$9.2059,630
2025-11-19$9.30$9.30107,180
2025-11-18$10.30$10.30123,330
2025-11-17$9.70$9.70194,190
2025-11-14$9.50$9.50247,620
2025-11-13$9.70$9.70475,710
2025-11-12$9.20$9.203,365,980
2025-11-11$8.20$8.20285,090
2025-11-10$8.00$8.00929,450
2025-11-07$9.60$9.6047,925,230
2025-11-06$6.30$6.3047,620
2025-11-05$6.70$6.7035,140
2025-11-04$7.00$7.0073,740
2025-11-03$7.40$7.4061,150
2025-10-31$7.80$7.8066,790
2025-10-30$7.70$7.70210,360
2025-10-29$9.10$9.10159,480
2025-10-28$9.40$9.40597,860
2025-10-27$10.20$10.2026,666,930
2025-10-24$7.70$7.707,480
2025-10-23$7.60$7.603,270
2025-10-22$7.50$7.5013,260
2025-10-21$8.00$8.0049,210
2025-10-20$7.40$7.404,690
2025-10-17$7.30$7.307,440
2025-10-16$7.30$7.304,930
2025-10-15$7.50$7.509,430
2025-10-14$7.50$7.505,560
2025-10-13$7.20$7.208,940
2025-10-10$7.10$7.1010,820
2025-10-09$7.60$7.6011,400
2025-10-08$7.50$7.509,350
2025-10-07$7.60$7.607,560
2025-10-06$7.80$7.8012,320
2025-10-03$7.90$7.909,600
2025-10-02$8.00$8.0016,090
2025-10-01$7.80$7.8024,740
2025-09-30$7.20$7.2015,430
2025-09-29$7.50$7.506,590
2025-09-26$7.50$7.5012,140
2025-09-25$7.60$7.608,160
2025-09-24$7.80$7.806,280
2025-09-23$7.70$7.7010,700
2025-09-22$7.90$7.909,130
2025-09-19$7.80$7.8016,970
2025-09-18$8.00$8.0019,160
2025-09-17$7.60$7.6029,830
2025-09-16$8.40$8.4036,520
2025-09-15$8.00$8.0013,470
2025-09-12$7.70$7.705,630
2025-09-11$7.60$7.6011,040
2025-09-10$7.60$7.6010,620
2025-09-09$7.50$7.5010,100
2025-09-08$7.20$7.2013,550
2025-09-05$7.50$7.5015,370
2025-09-04$7.50$7.504,550
2025-09-03$7.60$7.605,300
2025-09-02$7.50$7.507,200
2025-08-29$7.50$7.506,200
2025-08-28$7.50$7.504,730
2025-08-27$7.50$7.506,350
2025-08-26$7.50$7.503,330
2025-08-25$7.50$7.505,530
2025-08-22$7.70$7.706,440
2025-08-21$7.60$7.603,640
2025-08-20$7.40$7.409,530
2025-08-19$7.70$7.705,620
2025-08-18$7.80$7.8055,610
2025-08-15$7.30$7.3013,880
2025-08-14$7.50$7.507,440
2025-08-13$7.90$7.9025,020
2025-08-12$8.10$8.1035,830
2025-08-11$7.80$7.8022,750
2025-08-08$7.50$7.5010,210
2025-08-07$7.60$7.6047,470
2025-08-06$7.30$7.304,920
2025-08-05$7.50$7.504,570
2025-08-04$7.70$7.703,430
2025-08-01$7.60$7.6018,540
2025-07-31$7.70$7.7017,430
2025-07-30$8.00$8.004,450
2025-07-29$8.00$8.007,450
2025-07-28$8.10$8.1010,160
2025-07-25$8.30$8.303,960
2025-07-24$8.30$8.306,630
2025-07-23$8.30$8.306,070
2025-07-22$8.50$8.5022,470
2025-07-21$8.30$8.309,690
2025-07-18$8.30$8.3011,480
2025-07-17$8.30$8.3014,580
2025-07-16$8.20$8.2036,210
2025-07-15$8.10$8.106,630
2025-07-14$8.10$8.1026,900
2025-07-11$8.00$8.0011,140
2025-07-10$8.10$8.1012,750
2025-07-09$8.20$8.206,050
2025-07-08$8.10$8.1015,150
2025-07-07$8.00$8.0011,360
2025-07-03$8.10$8.103,730
2025-07-02$8.10$8.1013,070
2025-07-01$8.30$8.3058,510
2025-06-30$8.20$8.2014,930
2025-06-27$8.30$8.3015,930
2025-06-26$8.20$8.2011,040
2025-06-25$8.40$8.4043,360
2025-06-24$8.40$8.4019,820
2025-06-23$8.30$8.3064,120
2025-06-20$8.10$8.1026,800
2025-06-18$8.40$8.4031,350
2025-06-17$8.10$8.10696,600
2025-06-16$8.20$8.2023,870
2025-06-13$7.80$7.8032,310
2025-06-12$8.10$8.1066,160
2025-06-11$8.30$8.3029,840
2025-06-10$8.30$8.3032,440
2025-06-09$8.40$8.40225,620
2025-06-06$8.50$8.5028,780
2025-06-05$8.20$8.2082,820
2025-06-04$8.20$8.20111,950
2025-06-03$8.20$8.2029,660
2025-06-02$8.10$8.109,200
2025-05-30$8.40$8.40131,880
2025-05-29$7.90$7.904,700
2025-05-28$7.90$7.903,740
2025-05-27$7.90$7.908,260
2025-05-23$7.90$7.905,840
2025-05-22$8.20$8.2015,240
2025-05-21$8.50$8.5029,080
2025-05-20$8.50$8.5010,390
2025-05-19$8.40$8.4087,120
2025-05-16$8.30$8.307,020
2025-05-15$8.50$8.506,990
2025-05-14$8.30$8.307,400
2025-05-13$8.10$8.1010,880
2025-05-12$8.00$8.0010,660
2025-05-09$7.90$7.908,710
2025-05-08$7.70$7.707,510
2025-05-07$7.60$7.608,700
2025-05-06$8.00$8.0025,830
2025-05-05$8.90$8.9061,670
2025-05-02$8.30$8.306,520
2025-05-01$7.90$7.905,380
2025-04-30$8.00$8.0012,370
2025-04-29$7.90$7.9010,690
2025-04-28$7.40$7.4010,240
2025-04-25$7.90$7.90140,350
2025-04-24$7.50$7.5086,420
2025-04-23$7.20$7.207,520
2025-04-22$6.90$6.9010,090
2025-04-21$6.90$6.902,040
2025-04-17$7.20$7.2027,590
2025-04-16$7.20$7.201,880
2025-04-15$7.20$7.207,120
2025-04-14$7.30$7.307,360
2025-04-11$7.30$7.3022,220
2025-04-10$7.50$7.5032,190
2025-04-09$7.00$7.0017,050
2025-04-08$6.40$6.4010,650
2025-04-07$6.60$6.6015,800
2025-04-04$7.30$7.308,330
2025-04-03$7.20$7.205,730
2025-04-02$7.50$7.508,970
2025-04-01$7.60$7.6020,560
2025-03-31$7.90$7.9035,600
2025-03-28$8.10$8.1019,270
2025-03-27$8.60$8.6081,850
2025-03-26$11.20$11.20111,840
2025-03-25$10.90$10.9017,940
2025-03-24$10.50$10.509,880
2025-03-21$10.60$10.6015,320
2025-03-20$10.10$10.1014,690
2025-03-19$10.20$10.2015,000
2025-03-18$10.30$10.307,250
2025-03-17$10.30$10.3029,160
2025-03-14$12.00$12.0029,770
2025-03-13$12.60$12.60182,350
2025-03-12$11.90$11.9024,420
2025-03-11$12.20$12.20147,300
2025-03-10$11.00$11.00146,130
2025-03-07$10.60$10.605,010
2025-03-06$10.80$10.802,460
2025-03-05$10.70$10.7012,600
2025-03-04$10.20$10.206,100
2025-03-03$10.20$10.203,500
2025-02-28$10.10$10.109,500
2025-02-27$9.70$9.706,330
2025-02-26$10.00$10.0010,130
2025-02-25$10.00$10.008,790
2025-02-24$10.30$10.3025,590
2025-02-21$10.30$10.3023,030
2025-02-20$11.00$11.0016,520
2025-02-19$11.40$11.4028,030
2025-02-18$11.70$11.7014,710
2025-02-14$12.10$12.108,150
2025-02-13$12.70$12.7014,450
2025-02-12$12.30$12.3012,090
2025-02-11$12.80$12.804,780
2025-02-10$12.50$12.5024,860
2025-02-07$12.40$12.4014,410
2025-02-06$12.90$12.9015,350
2025-02-05$13.50$13.5023,110
2025-02-04$12.50$12.5020,700
2025-02-03$12.40$12.4023,440
2025-01-31$13.40$13.4012,570
2025-01-30$13.60$13.6024,200
2025-01-29$14.30$14.3013,710
2025-01-28$15.10$15.1013,210
2025-01-27$14.90$14.9046,980
2025-01-24$15.70$15.7039,310
2025-01-23$17.00$17.0027,490
2025-01-22$16.80$16.8043,220
2025-01-21$18.10$18.10183,730
2025-01-17$17.30$17.30120,700
2025-01-16$21.10$21.10357,200
2025-01-15$22.80$22.8019,920,340
2025-01-14$13.70$13.7019,240
2025-01-13$14.90$14.9047,720
2025-01-10$15.00$15.00431,680
2025-01-08$14.40$14.4033,680
2025-01-07$16.90$16.9081,550
2025-01-06$15.40$15.4026,880
2025-01-03$16.70$16.7058,610
2025-01-02$13.90$13.9045,110