ADTRAN (ADTN) Stock Chart & Stock Price History $9.37 -0.06 (-0.64%) Closing price 04:00 PM EasternExtended Trading$9.21 -0.16 (-1.70%) As of 07:16 PM 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 ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock ADTRAN Stock Price Performance The ADTRAN (ADTN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 61.83%, with a year-to-date return of 12.48%. In the past month, the stock has increased 2.74%, reflecting recent market activity. As of the latest close, ADTRAN traded at $9.43 with a market cap of $754.19 million and volume of 3.55 million shares. Five years ago, the stock traded at $9.93, representing a 5.64% decrease over that period. At the time, it had a market cap of $476.22 million and a volume of 130,564 shares. Receive ADTN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ADTRAN 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-1.37%1 Month Performance+2.74%3 Month Performance+4.93%Year-To-Date Performance+12.48%1 Year Performance+61.83%5 Year Performance-5.64% ADTN Stock Chart for Thursday, September, 25, 2025 ADTN Chart by TradingView ADTRAN 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 Capitalization09/25/2025$9.43$9.37-0.64%$9.41$9.181.21 million shs$749.41 million09/24/2025$9.56$9.43-1.36%$9.53$9.343.55 million shs$754.19 million09/23/2025$9.65$9.56-0.93%$9.79$9.391.68 million shs$764.61 million09/22/2025$9.50$9.65+1.58%$9.70$9.351.66 million shs$771.81 million09/19/2025$9.58$9.50-0.84%$9.70$9.382.73 million shs$759.81 million09/18/2025$8.77$9.58+9.24%$9.64$8.955.36 million shs$766.19 million09/17/2025$8.86$8.77-1.02%$8.95$8.6110.81 million shs$701.43 million09/16/2025$10.44$8.86-15.13%$9.81$8.7010.09 million shs$708.62 million09/15/2025$10.11$10.44+3.26%$10.48$9.751.17 million shs$834.97 million09/12/2025$10.61$10.11-4.71%$10.50$10.07692,590 shs$808.58 million Get the Latest News and Ratings for ADTN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ADTRAN and its competitors with MarketBeat's FREE daily newsletter. 09/11/2025$10.34$10.61+2.61%$10.64$10.26661,931 shs$848.59 million09/10/2025$10.37$10.34-0.29%$10.50$10.10810,639 shs$826.99 million09/09/2025$10.20$10.37+1.67%$10.46$10.011.08 million shs$829.39 million09/08/2025$9.75$10.20+4.62%$10.32$9.711.20 million shs$815.80 million09/05/2025$9.67$9.75+0.83%$9.90$9.61632,299 shs$779.81 million09/04/2025$9.28$9.67+4.20%$9.92$9.321.36 million shs$773.41 million09/03/2025$9.39$9.28-1.17%$9.47$9.13681,712 shs$742.21 million09/02/2025$9.38$9.39+0.11%$9.45$9.06555,154 shs$750.99 million09/01/2025$9.38$9.38$9.49$9.311.26 million shs$750.21 million08/29/2025$9.45$9.38-0.74%$9.49$9.311.26 million shs$750.21 million08/28/2025$9.34$9.45+1.18%$9.48$9.31689,147 shs$755.81 million08/27/2025$9.28$9.34+0.65%$9.44$9.25523,946 shs$747.00 million08/26/2025$9.12$9.28+1.75%$9.39$9.04725,417 shs$742.21 million08/25/2025$9.17$9.12-0.55%$9.30$9.09593,465 shs$729.42 million Related Companies EXTR Stock Chart BELFB Stock Chart DGII Stock Chart HLIT Stock Chart NTGR Stock Chart RBBN Stock Chart AVNW Stock Chart KVHI Stock Chart CMTL Stock Chart AWRE Stock Chart Receive ADTN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ADTRAN and its competitors with MarketBeat's FREE daily newsletter. 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