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.

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Historical Stock Price — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$633.60$633.601,246——
2020-12-30$635.40$635.401,602——
2020-12-29$630.00$630.009,637——
2020-12-28$615.60$615.60899——
2020-12-24$624.60$624.60774——
2020-12-23$613.80$613.801,374——
2020-12-22$617.40$617.40952——
2020-12-21$617.40$617.40791——
2020-12-18$624.60$624.601,251——
2020-12-17$631.80$631.80682——
2020-12-16$635.40$635.40964——
2020-12-15$644.40$644.40941——
2020-12-14$630.00$630.001,320——
2020-12-11$626.40$626.401,284——
2020-12-10$640.80$640.801,109——
2020-12-09$644.40$644.401,674——
2020-12-08$651.60$651.601,152——
2020-12-07$678.60$678.602,328——
2020-12-04$658.80$658.801,967——
2020-12-03$646.20$646.201,272——
2020-12-02$651.60$651.604,336——
2020-12-01$621.00$621.003,391——
2020-11-30$624.60$624.603,516——
2020-11-27$624.60$624.601,441——
2020-11-25$610.20$610.203,010——
2020-11-24$622.80$622.808,010——
2020-11-23$631.80$631.8038,251——
2020-11-20$527.40$527.403,888——
2020-11-19$547.20$547.207,022——
2020-11-18$648.00$648.003,547——
2020-11-17$619.20$619.20992——
2020-11-16$604.80$604.801,229——
2020-11-13$590.40$590.401,199——
2020-11-12$619.20$619.202,583——
2020-11-11$648.00$648.001,285——
2020-11-10$633.60$633.601,062——
2020-11-09$590.40$590.40968——
2020-11-06$604.80$604.80756——
2020-11-05$604.80$604.80822——
2020-11-04$590.40$590.40591——
2020-11-03$590.40$590.40871——
2020-11-02$576.00$576.002,189——
2020-10-30$590.40$590.401,124——
2020-10-29$619.20$619.20755——
2020-10-28$648.00$648.001,963——
2020-10-27$619.20$619.201,068——
2020-10-26$633.60$633.60975——
2020-10-23$648.00$648.00938——
2020-10-22$662.40$662.401,293——
2020-10-21$648.00$648.001,112——
2020-10-20$648.00$648.001,405——
2020-10-19$662.40$662.401,697——
2020-10-16$676.80$676.801,493——
2020-10-15$691.20$691.201,737——
2020-10-14$705.60$705.603,851——
2020-10-13$691.20$691.202,069——
2020-10-12$691.20$691.205,284——
2020-10-09$777.60$777.608,085——
2020-10-08$792.00$792.0085,193——
2020-10-07$604.80$604.80785——
2020-10-06$604.80$604.80723——
2020-10-05$619.20$619.20540——
2020-10-02$619.20$619.20646——
2020-10-01$633.60$633.60647——
2020-09-30$633.60$633.60753——
2020-09-29$619.20$619.20632——
2020-09-28$648.00$648.00602——
2020-09-25$619.20$619.20700——
2020-09-24$619.20$619.201,228——
2020-09-23$648.00$648.001,362——
2020-09-22$691.20$691.201,097——
2020-09-21$691.20$691.20853——
2020-09-18$676.80$676.801,021——
2020-09-17$705.60$705.60494——
2020-09-16$720.00$720.00658——
2020-09-15$734.40$734.40784——
2020-09-14$720.00$720.001,428——
2020-09-11$676.80$676.801,128——
2020-09-10$705.60$705.60696——
2020-09-09$705.60$705.601,010——
2020-09-08$748.80$748.801,691——
2020-09-04$705.60$705.602,128——
2020-09-03$705.60$705.601,731——
2020-09-02$734.40$734.403,656——
2020-09-01$792.00$792.002,452——
2020-08-31$820.80$820.802,072——
2020-08-28$878.40$878.401,641——
2020-08-27$849.60$849.602,415——
2020-08-26$892.80$892.804,465——
2020-08-25$936.00$936.007,472——
2020-08-24$907.20$907.205,075——
2020-08-21$964.80$964.806,994——
2020-08-20$1,036.80$1,036.803,865——
2020-08-19$1,051.20$1,051.204,078——
2020-08-18$1,036.80$1,036.804,233——
2020-08-17$1,065.60$1,065.604,956——
2020-08-14$1,065.60$1,065.608,902——
2020-08-13$1,065.60$1,065.607,006——
2020-08-12$1,137.60$1,137.605,118——
2020-08-11$1,180.80$1,180.8015,181——
2020-08-10$1,195.20$1,195.2011,982——
2020-08-07$1,080.00$1,080.004,543——
2020-08-06$1,051.20$1,051.202,955——
2020-08-05$1,065.60$1,065.606,634——
2020-08-04$1,022.40$1,022.402,923——
2020-08-03$1,022.40$1,022.403,484——
2020-07-31$1,008.00$1,008.003,784——
2020-07-30$1,008.00$1,008.005,289——
2020-07-29$1,008.00$1,008.007,111——
2020-07-28$1,036.80$1,036.809,235——
2020-07-27$1,094.40$1,094.4025,441——
2020-07-24$950.40$950.404,820——
2020-07-23$936.00$936.009,875——
2020-07-22$979.20$979.2016,484——
2020-07-21$892.80$892.8024,706——
2020-07-20$1,252.80$1,252.804,277——
2020-07-17$1,468.80$1,468.805,858——
2020-07-16$1,728.00$1,728.0084,167——
2020-07-15$1,152.00$1,152.00151——
2020-07-14$1,123.20$1,123.20599——
2020-07-13$1,123.20$1,123.20476——
2020-07-10$1,123.20$1,123.20282——
2020-07-09$1,137.60$1,137.60303——
2020-07-08$1,137.60$1,137.60185——
2020-07-07$1,123.20$1,123.20218——
2020-07-06$1,094.40$1,094.40452——
2020-07-02$1,108.80$1,108.802,003——
2020-07-01$1,195.20$1,195.204,285——
2020-06-30$1,281.60$1,281.602,264——
2020-06-29$1,051.20$1,051.20218——
2020-06-26$1,051.20$1,051.20171——
2020-06-25$1,108.80$1,108.80122——
2020-06-24$1,123.20$1,123.20269——
2020-06-23$1,123.20$1,123.20597——
2020-06-22$1,152.00$1,152.00295——
2020-06-19$1,166.40$1,166.40225——
2020-06-18$1,209.60$1,209.60273——
2020-06-17$1,209.60$1,209.60312——
2020-06-16$1,238.40$1,238.40474——
2020-06-15$1,195.20$1,195.20453——
2020-06-12$1,195.20$1,195.20726——
2020-06-11$1,180.80$1,180.80979——
2020-06-10$1,324.80$1,324.804,313——
2020-06-09$1,339.20$1,339.20897——
2020-06-08$1,368.00$1,368.001,320——
2020-06-05$1,238.40$1,238.401,048——
2020-06-04$1,209.60$1,209.601,156——
2020-06-03$1,108.80$1,108.80331——
2020-06-02$1,065.60$1,065.60158——
2020-06-01$1,094.40$1,094.40244——
2020-05-29$1,080.00$1,080.00447——
2020-05-28$1,080.00$1,080.00334——
2020-05-27$1,108.80$1,108.80385——
2020-05-26$1,123.20$1,123.20465——
2020-05-22$1,051.20$1,051.20330——
2020-05-21$1,051.20$1,051.20358——
2020-05-20$1,051.20$1,051.20400——
2020-05-19$1,065.60$1,065.601,180——
2020-05-18$1,008.00$1,008.00645——
2020-05-15$1,036.80$1,036.801,425——
2020-05-14$1,324.80$1,324.80293——
2020-05-13$1,310.40$1,310.40379——
2020-05-12$1,425.60$1,425.60385——
2020-05-11$1,396.80$1,396.80327——
2020-05-08$1,368.00$1,368.00491——
2020-05-07$1,425.60$1,425.60477——
2020-05-06$1,483.20$1,483.20214——
2020-05-05$1,483.20$1,483.20562——
2020-05-04$1,584.00$1,584.00384——
2020-05-01$1,569.60$1,569.60734——
2020-04-30$1,684.80$1,684.802,106——
2020-04-29$1,425.60$1,425.601,382——
2020-04-28$1,324.80$1,324.80811——
2020-04-27$1,324.80$1,324.803,293——
2020-04-24$1,123.20$1,123.202,002——
2020-04-23$993.60$993.60264——
2020-04-22$993.60$993.60354——
2020-04-21$993.60$993.60334——
2020-04-20$1,008.00$1,008.00491——
2020-04-17$1,051.20$1,051.20545——
2020-04-16$1,065.60$1,065.603,693——
2020-04-15$1,008.00$1,008.00223——
2020-04-14$1,051.20$1,051.20396——
2020-04-13$1,108.80$1,108.80284——
2020-04-09$1,022.40$1,022.40581——
2020-04-08$1,080.00$1,080.00384——
2020-04-07$1,065.60$1,065.60642——
2020-04-06$1,036.80$1,036.80482——
2020-04-03$993.60$993.60484——
2020-04-02$1,051.20$1,051.20570——
2020-04-01$1,180.80$1,180.801,200——
2020-03-31$1,339.20$1,339.202,557——
2020-03-30$1,152.00$1,152.002,393——
2020-03-27$1,512.00$1,512.0037,020——
2020-03-26$777.60$777.60112——
2020-03-25$763.20$763.20205——
2020-03-24$806.40$806.40301——
2020-03-23$676.80$676.80214——
2020-03-20$734.40$734.40235——
2020-03-19$777.60$777.60306——
2020-03-18$1,008.00$1,008.001,137——
2020-03-17$576.00$576.00172——
2020-03-16$633.60$633.60406——
2020-03-13$864.00$864.00521——
2020-03-12$1,094.40$1,094.401,456——
2020-03-11$1,699.20$1,699.2023,412——
2020-03-10$705.60$705.6011——
2020-03-09$691.20$691.2026——
2020-03-06$748.80$748.807——
2020-03-05$763.20$763.2029——
2020-03-04$864.00$864.001——
2020-03-03$864.00$864.008——
2020-03-02$806.40$806.408——
2020-02-28$907.20$907.2043——
2020-02-27$921.60$921.6028——
2020-02-26$993.60$993.6050——
2020-02-25$1,094.40$1,094.4011——
2020-02-24$1,108.80$1,108.806——
2020-02-21$1,094.40$1,094.4018——
2020-02-20$1,123.20$1,123.206——
2020-02-19$1,094.40$1,094.4042——
2020-02-18$1,008.00$1,008.0020——
2020-02-14$1,036.80$1,036.8022——
2020-02-13$1,065.60$1,065.6046——
2020-02-12$1,252.80$1,252.8010——
2020-02-11$1,238.40$1,238.4042——
2020-02-10$1,224.00$1,224.0040——
2020-02-07$1,209.60$1,209.6024——
2020-02-06$1,180.80$1,180.8054——
2020-02-05$1,252.80$1,252.8070——
2020-02-04$1,252.80$1,252.80282——
2020-02-03$1,440.00$1,440.00212——
2020-01-31$1,180.80$1,180.8045——
2020-01-30$1,238.40$1,238.40119——
2020-01-29$1,137.60$1,137.60681——
2020-01-28$936.00$936.0055——
2020-01-27$907.20$907.2017——
2020-01-24$864.00$864.0017——
2020-01-23$907.20$907.2020——
2020-01-22$878.40$878.4013——
2020-01-21$892.80$892.8034——
2020-01-17$936.00$936.00103——
2020-01-16$835.20$835.2071——
2020-01-15$748.80$748.805——
2020-01-14$792.00$792.005——
2020-01-13$763.20$763.206——
2020-01-10$777.60$777.608——
2020-01-09$806.40$806.402——
2020-01-08$849.60$849.6023——
2020-01-07$734.40$734.401——
2020-01-06$748.80$748.8020——
2020-01-03$734.40$734.401——
2020-01-02$734.40$734.4010——