A. O. Smith (AOS) Stock Chart & Stock Price History $69.77 +0.41 (+0.60%) Closing price 10/17/2025 03:59 PM EasternExtended Trading$69.73 -0.04 (-0.06%) As of 10/17/2025 05:00 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 InterestSustainabilityTrendsBuy This Stock A. O. Smith Stock Price Performance The A. O. Smith (AOS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 11.40%, with a year-to-date return of 2.29%. In the past month, the stock has decreased 4.51%, reflecting recent market activity. As of the latest close, A. O. Smith traded at $69.77 with a market cap of $9.78 billion and volume of 989,427 shares. Five years ago, the stock traded at $55.37, representing a 26.01% increase over that period. At the time, it had a market cap of $8.94 billion and a volume of 1.16 million shares. Receive AOS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for A. O. Smith 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. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. 5 Day Performance+3.06%1 Month Performance-4.51%3 Month Performance-0.64%Year-To-Date Performance+2.29%1 Year Performance-11.40%5 Year Performance+26.01% AOS Stock Chart for Saturday, October, 18, 2025 AOS Chart by TradingView A. O. Smith 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 Capitalization10/17/2025$69.37$69.77+0.58%$69.86$69.03989,427 shs$9.78 billion10/16/2025$69.24$69.37+0.19%$69.54$68.751.01 million shs$9.72 billion10/15/2025$68.83$69.24+0.59%$69.59$68.611.07 million shs$9.70 billion10/14/2025$67.70$68.83+1.67%$69.12$67.24927,515 shs$9.65 billion10/13/2025$67.68$67.70+0.03%$68.72$67.541.03 million shs$9.49 billion10/10/2025$69.74$67.68-2.95%$70.15$67.671.34 million shs$9.48 billion10/09/2025$71.06$69.74-1.86%$71.07$69.541.09 million shs$9.77 billion10/08/2025$71.44$71.06-0.53%$71.54$70.69806,346 shs$9.96 billion10/07/2025$72.44$71.44-1.38%$72.60$71.37808,604 shs$10.01 billion10/06/2025$73.38$72.44-1.27%$73.14$72.20704,293 shs$10.15 billion Get the Latest News and Ratings for AOS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for A. O. Smith and its competitors with MarketBeat's FREE daily newsletter. 10/03/2025$73.49$73.38-0.16%$73.90$73.26649,588 shs$10.28 billion10/02/2025$73.17$73.49+0.45%$73.97$72.79831,534 shs$10.30 billion10/01/2025$73.45$73.17-0.39%$73.56$72.431.05 million shs$10.25 billion09/30/2025$72.74$73.45+0.98%$73.56$72.87751,317 shs$10.29 billion09/29/2025$72.48$72.74+0.36%$73.46$72.53671,824 shs$10.19 billion09/26/2025$71.42$72.48+1.48%$72.55$71.29637,201 shs$10.16 billion09/25/2025$71.98$71.42-0.78%$72.15$71.09682,404 shs$10.01 billion09/24/2025$72.11$71.98-0.17%$72.70$71.73820,857 shs$10.09 billion09/23/2025$72.30$72.11-0.27%$73.33$71.74622,341 shs$10.10 billion09/22/2025$73.06$72.30-1.04%$72.82$72.09769,446 shs$10.13 billion09/19/2025$73.07$73.06-0.01%$73.39$72.482.03 million shs$10.24 billion09/18/2025$73.13$73.07-0.08%$73.52$72.69915,843 shs$10.24 billion09/17/2025$73.59$73.13-0.63%$75.20$72.651.08 million shs$10.25 billion Related Companies AIT Stock Chart ALG Stock Chart ALLE Stock Chart AZZ Stock Chart ENS Stock Chart FLS Stock Chart GGG Stock Chart GWW Stock Chart IEX Stock Chart IR Stock Chart Receive AOS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for A. O. Smith and its competitors with MarketBeat's FREE daily newsletter. This page (NYSE:AOS) was last updated on 10/18/2025 by MarketBeat.com Staff From Our PartnersBuy alert: Move $1,000 before Tesla’s Optimus launchElon's $1,000,000,000,000 payday Elon Musk just made his biggest insider purchase of Tesla stock ever. He's...Altimetry | SponsoredINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredFront-Run Buffett's Shocking Gold MoveA Historic Gold Announcement Is About to Rock Wall Street? 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