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 — 2021

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2021-12-31$397.80$397.80439
2021-12-30$394.20$394.20256
2021-12-29$387.00$387.00358
2021-12-28$406.80$406.80194
2021-12-27$408.60$408.60233
2021-12-23$417.60$417.60352
2021-12-22$426.60$426.60427
2021-12-21$399.60$399.60396
2021-12-20$405.00$405.00215
2021-12-17$412.20$412.20159
2021-12-16$410.40$410.40115
2021-12-15$399.60$399.60426
2021-12-14$408.60$408.60137
2021-12-13$417.60$417.60334
2021-12-10$432.00$432.00114
2021-12-09$444.60$444.6046
2021-12-08$439.20$439.20225
2021-12-07$446.40$446.40309
2021-12-06$421.20$421.20160
2021-12-03$415.80$415.80451
2021-12-02$430.20$430.20176
2021-12-01$428.40$428.40299
2021-11-30$442.80$442.80706
2021-11-29$450.00$450.00734
2021-11-26$459.00$459.00226
2021-11-24$462.60$462.60386
2021-11-23$469.80$469.80423
2021-11-22$478.80$478.80408
2021-11-19$491.40$491.40162
2021-11-18$489.60$489.60750
2021-11-17$505.80$505.80794
2021-11-16$505.80$505.801,683
2021-11-15$558.00$558.00420
2021-11-12$550.80$550.80302
2021-11-11$558.00$558.00314
2021-11-10$552.60$552.60222
2021-11-09$554.40$554.40121
2021-11-08$554.40$554.40344
2021-11-05$565.20$565.20133
2021-11-04$558.00$558.00327
2021-11-03$576.00$576.00124
2021-11-02$567.00$567.00247
2021-11-01$567.00$567.00189
2021-10-29$570.60$570.60209
2021-10-28$561.60$561.60115
2021-10-27$552.60$552.60189
2021-10-26$556.20$556.20226
2021-10-25$559.80$559.80272
2021-10-22$549.00$549.00327
2021-10-21$576.00$576.00277
2021-10-20$574.20$574.20251
2021-10-19$567.00$567.00228
2021-10-18$574.20$574.20121
2021-10-15$581.40$581.40118
2021-10-14$581.40$581.40204
2021-10-13$594.00$594.00467
2021-10-12$574.20$574.20207
2021-10-11$572.40$572.40588
2021-10-08$604.80$604.80151
2021-10-07$604.80$604.80257
2021-10-06$606.60$606.60227
2021-10-05$612.00$612.00364
2021-10-04$626.40$626.40598
2021-10-01$640.80$640.801,499
2021-09-30$633.60$633.60512
2021-09-29$613.80$613.80496
2021-09-28$639.00$639.00649
2021-09-27$651.60$651.601,046
2021-09-24$631.80$631.801,073
2021-09-23$621.00$621.001,953
2021-09-22$613.80$613.804,347
2021-09-21$637.20$637.20129,173
2021-09-20$545.40$545.40307
2021-09-17$581.40$581.40173
2021-09-16$586.80$586.80545
2021-09-15$579.60$579.60355
2021-09-14$556.20$556.20182
2021-09-13$552.60$552.60479
2021-09-10$563.40$563.40315
2021-09-09$574.20$574.20779
2021-09-08$567.00$567.00145
2021-09-07$588.60$588.60177
2021-09-03$588.60$588.60229
2021-09-02$601.20$601.20638
2021-09-01$568.80$568.8073
2021-08-31$568.80$568.80170
2021-08-30$567.00$567.00213
2021-08-27$577.80$577.80272
2021-08-26$586.80$586.80187
2021-08-25$572.40$572.40344
2021-08-24$556.20$556.20145
2021-08-23$550.80$550.80278
2021-08-20$529.20$529.20278
2021-08-19$531.00$531.00399
2021-08-18$540.00$540.00513
2021-08-17$518.40$518.40937
2021-08-16$549.00$549.00737
2021-08-13$559.80$559.80357
2021-08-12$577.80$577.80204
2021-08-11$594.00$594.00190
2021-08-10$604.80$604.80446
2021-08-09$595.80$595.8076
2021-08-06$601.20$601.20267
2021-08-05$574.20$574.2069
2021-08-04$572.40$572.40110
2021-08-03$572.40$572.40269
2021-08-02$594.00$594.00255
2021-07-30$576.00$576.00168
2021-07-29$577.80$577.80421
2021-07-28$581.40$581.40803
2021-07-27$577.80$577.80458
2021-07-26$601.20$601.20467
2021-07-23$588.60$588.60401
2021-07-22$626.40$626.401,441
2021-07-21$594.00$594.00178
2021-07-20$583.20$583.20309
2021-07-19$565.20$565.20320
2021-07-16$563.40$563.40587
2021-07-15$574.20$574.20772
2021-07-14$619.20$619.20674
2021-07-13$637.20$637.202,091
2021-07-12$630.00$630.00333
2021-07-09$635.40$635.40253
2021-07-08$619.20$619.20153
2021-07-07$626.40$626.40400
2021-07-06$648.00$648.00364
2021-07-02$662.40$662.40202
2021-07-01$676.80$676.80321
2021-06-30$684.00$684.00551
2021-06-29$693.00$693.0099
2021-06-28$700.20$700.20148
2021-06-25$720.00$720.00273
2021-06-24$716.40$716.40429
2021-06-23$703.80$703.80473
2021-06-22$716.40$716.40458
2021-06-21$732.60$732.60569
2021-06-18$739.80$739.802,447
2021-06-17$714.60$714.60634
2021-06-16$705.60$705.60663
2021-06-15$702.00$702.00399
2021-06-14$730.80$730.80189
2021-06-11$738.00$738.00265
2021-06-10$720.00$720.00282
2021-06-09$736.20$736.20297
2021-06-08$716.40$716.40433
2021-06-07$729.00$729.00343
2021-06-04$736.20$736.20277
2021-06-03$738.00$738.00551
2021-06-02$739.80$739.80663
2021-06-01$711.00$711.00834
2021-05-28$725.40$725.40561
2021-05-27$732.60$732.601,894
2021-05-26$700.20$700.201,396
2021-05-25$691.20$691.201,878
2021-05-24$680.40$680.402,251
2021-05-21$644.40$644.401,894
2021-05-20$597.60$597.60536
2021-05-19$604.80$604.80479
2021-05-18$610.20$610.20302
2021-05-17$592.20$592.20304
2021-05-14$603.00$603.00902
2021-05-13$558.00$558.00476
2021-05-12$577.80$577.80452
2021-05-11$581.40$581.40512
2021-05-10$583.20$583.20736
2021-05-07$612.00$612.00855
2021-05-06$644.40$644.403,004
2021-05-05$604.80$604.80352
2021-05-04$622.80$622.80318
2021-05-03$635.40$635.40303
2021-04-30$621.00$621.00383
2021-04-29$631.80$631.80213
2021-04-28$640.80$640.80508
2021-04-27$617.40$617.40499
2021-04-26$646.20$646.20933
2021-04-23$601.20$601.20452
2021-04-22$583.20$583.20426
2021-04-21$588.60$588.60433
2021-04-20$556.20$556.201,919
2021-04-19$565.20$565.20917
2021-04-16$595.80$595.80695
2021-04-15$585.00$585.001,161
2021-04-14$610.20$610.201,375
2021-04-13$630.00$630.00737
2021-04-12$644.40$644.404,392
2021-04-09$635.40$635.40323
2021-04-08$658.80$658.801,112
2021-04-07$642.60$642.60487
2021-04-06$633.60$633.60639
2021-04-05$649.80$649.802,726
2021-04-01$651.60$651.60877
2021-03-31$628.20$628.201,949
2021-03-30$612.00$612.001,267
2021-03-29$617.40$617.401,552
2021-03-26$635.40$635.402,354
2021-03-25$639.00$639.007,518
2021-03-24$617.40$617.402,510
2021-03-23$664.20$664.203,126
2021-03-22$691.20$691.202,273
2021-03-19$687.60$687.604,351
2021-03-18$759.60$759.6016,369
2021-03-17$662.40$662.404,148
2021-03-16$633.60$633.60701
2021-03-15$660.60$660.60586
2021-03-12$646.20$646.20831
2021-03-11$666.00$666.001,775
2021-03-10$626.40$626.401,228
2021-03-09$649.80$649.801,644
2021-03-08$613.80$613.80534
2021-03-05$633.60$633.601,746
2021-03-04$655.20$655.202,212
2021-03-03$718.20$718.202,098
2021-03-02$732.60$732.601,860
2021-03-01$756.00$756.001,502
2021-02-26$734.40$734.402,068
2021-02-25$734.40$734.401,307
2021-02-24$783.00$783.002,082
2021-02-23$770.40$770.401,883
2021-02-22$824.40$824.401,877
2021-02-19$873.00$873.001,619
2021-02-18$882.00$882.001,429
2021-02-17$894.60$894.602,173
2021-02-16$905.40$905.403,702
2021-02-12$876.60$876.601,340
2021-02-11$837.00$837.002,233
2021-02-10$867.60$867.603,204
2021-02-09$869.40$869.402,605
2021-02-08$811.80$811.803,624
2021-02-05$763.20$763.201,374
2021-02-04$765.00$765.001,389
2021-02-03$745.20$745.201,904
2021-02-02$714.60$714.602,178
2021-02-01$698.40$698.401,084
2021-01-29$698.40$698.401,961
2021-01-28$702.00$702.001,388
2021-01-27$709.20$709.202,941
2021-01-26$774.00$774.001,524
2021-01-25$757.80$757.802,499
2021-01-22$775.80$775.802,444
2021-01-21$752.40$752.403,231
2021-01-20$763.20$763.2014,741
2021-01-19$716.40$716.404,589
2021-01-15$682.20$682.202,897
2021-01-14$689.40$689.401,732
2021-01-13$691.20$691.201,836
2021-01-12$716.40$716.405,214
2021-01-11$700.20$700.204,387
2021-01-08$673.20$673.203,687
2021-01-07$671.40$671.404,208
2021-01-06$698.40$698.4020,120
2021-01-05$655.20$655.202,720
2021-01-04$662.40$662.403,616