Data I/O (DAIO) Stock Chart & Stock Price History $3.36 +0.01 (+0.30%) Closing price 10/6/2025 03:59 PM EasternExtended Trading$3.42 +0.06 (+1.73%) As of 07:00 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Data I/O Stock Price Performance The Data I/O (DAIO) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 38.84%, with a year-to-date return of 21.30%. In the past month, the stock has increased 4.67%, reflecting recent market activity. As of the latest close, Data I/O traded at $3.36 with a market cap of $31.54 million and volume of 20,460 shares. Five years ago, the stock traded at $3.60, representing a 6.67% decrease over that period. At the time, it had a market cap of $30.21 million and a volume of 197,860 shares. Receive DAIO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Data I/O and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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Read our full terms of service and privacy policy. 5 Day Performance-0.30%1 Month Performance+4.67%3 Month Performance+5.99%Year-To-Date Performance+21.30%1 Year Performance+38.84%5 Year Performance-6.67% DAIO Stock Chart for Tuesday, October, 7, 2025 DAIO Chart by TradingView Data I/O 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 to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization10/06/2025$3.35$3.36+0.30%$3.41$3.3520,460 shs$31.54 million10/03/2025$3.37$3.35-0.59%$3.38$3.3422,430 shs$31.45 million10/02/2025$3.38$3.37-0.30%$3.38$3.3211,374 shs$31.64 million10/01/2025$3.34$3.38+1.20%$3.40$3.3532,690 shs$31.74 million09/30/2025$3.34$3.34$3.44$3.337,461 shs$31.36 million09/29/2025$3.38$3.34-1.18%$3.43$3.3419,296 shs$31.36 million09/26/2025$3.28$3.38+3.05%$3.38$3.2730,715 shs$31.74 million09/25/2025$3.33$3.28-1.50%$3.39$3.2811,851 shs$30.80 million09/24/2025$3.25$3.33+2.46%$3.36$3.2039,612 shs$31.26 million09/23/2025$3.26$3.25-0.31%$3.30$3.247,812 shs$30.52 million Get the Latest News and Ratings for DAIO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Data I/O and its competitors with MarketBeat's FREE daily newsletter. 09/22/2025$3.21$3.26+1.56%$3.31$3.2314,837 shs$30.61 million09/19/2025$3.30$3.21-2.73%$3.39$3.2037,608 shs$30.14 million09/18/2025$3.33$3.30-0.90%$3.43$3.2251,682 shs$30.98 million09/17/2025$3.38$3.33-1.48%$3.42$3.2514,334 shs$31.27 million09/16/2025$3.37$3.38+0.30%$3.49$3.2922,596 shs$31.74 million09/15/2025$3.37$3.37$3.52$3.3311,226 shs$31.64 million09/12/2025$3.45$3.37-2.32%$3.50$3.3014,221 shs$31.64 million09/11/2025$3.50$3.45-1.43%$3.53$3.3617,647 shs$32.40 million09/10/2025$3.49$3.50+0.29%$3.57$3.4161,048 shs$32.87 million09/09/2025$3.20$3.49+9.06%$3.49$3.09153,173 shs$32.76 million09/08/2025$3.21$3.20-0.31%$3.24$3.1433,562 shs$30.05 million Related Companies Kewaunee Scientific Stock Chart Nautilus Biotechnology Stock Chart inTEST Stock Chart Optex Systems Stock Chart Odysight.ai Stock Chart Syntec Optics Stock Chart ClearSign Technologies Stock Chart Autoscope Technologies Stock Chart Precipio Stock Chart MultiSensor AI Stock Chart Receive DAIO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Data I/O and its competitors with MarketBeat's FREE daily newsletter. 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