BIO-key International (BKYI) Stock Chart & Stock Price History $4.27 +0.02 (+0.51%) As of 05/18/2026 03:43 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock BIO-key International Stock Price Performance The BIO-key International (BKYI) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 49.09%, with a year-to-date return of -20.76%. In the past month, the stock has decreased 32.22%, reflecting recent market activity. As of the latest close, BIO-key International traded at $4.27 with a market cap of $4.64 million and volume of 10,473 shares. Five years ago, the stock traded at a split-adjusted price of $604.80, representing a 99.29% decrease over that period. At the time, it had a market cap of $26.27 million and a volume of 480 shares. 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Read our full terms of service and privacy policy. 5 Day Performance+8.42%1 Month Performance-32.22%3 Month Performance-22.33%Year-To-Date Performance-20.76%1 Year Performance-49.09%5 Year Performance-99.29% BKYI Stock Chart for Tuesday, May, 19, 2026 BKYI Chart by TradingView BIO-key International Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/18/2026$4.25$4.27+0.51%$4.49$4.1010,473 shs$4.64 million05/15/2026$3.94$4.25+7.87%$4.35$3.9210,030 shs$4.61 million05/14/2026$4.04$3.94-2.48%$4.30$3.9141,799 shs$4.28 million05/13/2026$3.46$4.04+16.76%$5.00$3.10111,287 shs$4.40 million05/12/2026$5.31$3.46-34.84%$5.35$3.40347,145 shs$3.77 million05/11/2026$5.22$5.31+1.72%$5.45$5.1440,050 shs$5.76 million05/08/2026$5.34$5.22-2.25%$5.42$5.1819,158 shs$5.79 million05/07/2026$5.22$5.34+2.30%$5.40$5.1214,132 shs$5.82 million05/06/2026$5.16$5.22+1.16%$5.50$4.8914,439 shs$5.69 million05/05/2026N/A$5.16$5.49$4.8824,254 shs$5.60 million Get the Latest News and Ratings for BKYI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for BIO-key International and its competitors with MarketBeat's FREE daily newsletter. 04/30/2026$4.63$4.99+7.78%$5.16$4.0555,462 shs$54.14 million04/29/2026$5.13$4.63-9.71%$5.08$4.6040,116 shs$5.02 million04/28/2026$5.99$5.13-14.32%$5.50$5.0077,909 shs$5.56 million04/27/2026$6.09$5.99-1.68%$6.09$5.906,015 shs$6.49 million04/24/2026$5.95$6.09+2.35%$6.10$5.809,817 shs$6.60 million04/23/2026$6.29$5.95-5.50%$6.20$5.756,060 shs$6.45 million04/22/2026$6.30$6.29-0.05%$6.50$6.127,712 shs$6.83 million04/21/2026$6.29$6.30+0.10%$6.45$6.105,174 shs$6.83 million04/20/2026$6.30$6.29-0.19%$6.30$6.0310,316 shs$6.83 million Related Companies Smith Micro Software Stock Chart Earlyworks Stock Chart authID Stock Chart MIND C.T.I. Stock Chart J And Friends Stock Chart Amber International Stock Chart Snail Stock Chart AppTech Payments Stock Chart Nixxy Stock Chart Pintec Technology Stock Chart Receive BKYI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for BIO-key International and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:BKYI) was last updated on 5/19/2026 by MarketBeat.com Staff. 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