Alphatec (ATEC) Stock Chart & Stock Price History $12.66 -0.31 (-2.39%) Closing price 04:00 PM EasternExtended Trading$13.25 +0.59 (+4.66%) As of 06:23 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Alphatec Stock Price Performance The Alphatec (ATEC) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 18.54%, with a year-to-date return of 37.91%. In the past month, the stock has increased 18.98%, reflecting recent market activity. As of the latest close, Alphatec traded at $12.97 with a market cap of $1.90 billion and volume of 1.56 million shares. Five years ago, the stock traded at $4.47, representing a 183.22% increase over that period. At the time, it had a market cap of $278.37 million and a volume of 127,135 shares. Receive ATEC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Alphatec and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-2.31%1 Month Performance+18.98%3 Month Performance+19.32%Year-To-Date Performance+37.91%1 Year Performance+18.54%5 Year Performance+183.22% ATEC Stock Chart for Wednesday, May, 21, 2025 ATEC Chart by TradingView Alphatec 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 Capitalization05/21/2025$12.97$12.66-2.39%$12.97$12.581.65 million shs$1.85 billion05/20/2025$13.03$12.97-0.46%$13.14$12.741.56 million shs$1.90 billion05/19/2025$12.96$13.03+0.54%$13.07$12.651.28 million shs$1.90 billion05/16/2025$12.74$12.96+1.73%$13.00$12.701.53 million shs$1.89 billion05/15/2025$12.74$12.74$13.03$12.671.26 million shs$1.86 billion05/14/2025$12.72$12.74+0.16%$12.81$12.55988,345 shs$1.86 billion05/13/2025$12.67$12.72+0.39%$12.85$12.53985,887 shs$1.86 billion05/12/2025$12.22$12.67+3.68%$12.75$12.431.54 million shs$1.85 billion05/09/2025$12.74$12.22-4.08%$12.64$12.041.89 million shs$1.79 billion05/08/2025$12.45$12.74+2.36%$12.82$12.132.26 million shs$1.86 billion Get the Latest News and Ratings for ATEC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Alphatec and its competitors with MarketBeat's FREE daily newsletter. 05/07/2025$12.23$12.45+1.77%$12.49$11.942.15 million shs$1.82 billion05/06/2025$11.98$12.23+2.08%$12.24$11.622.22 million shs$1.79 billion05/05/2025$12.00$11.98-0.17%$12.27$11.512.36 million shs$1.75 billion05/02/2025$11.06$12.00+8.50%$12.26$11.134.70 million shs$1.75 billion05/01/2025$10.98$11.06+0.73%$11.29$10.742.96 million shs$1.62 billion04/30/2025$11.21$10.98-2.05%$11.11$10.831.37 million shs$1.58 billion04/29/2025$11.13$11.21+0.72%$11.47$11.011.25 million shs$1.62 billion04/28/2025$11.51$11.13-3.30%$11.58$11.101.66 million shs$1.60 billion04/25/2025$11.40$11.51+0.96%$11.58$11.231.06 million shs$1.66 billion04/24/2025$11.21$11.40+1.69%$11.55$11.181.50 million shs$1.64 billion04/23/2025$10.83$11.21+3.51%$11.55$11.012.17 million shs$1.62 billion04/22/2025$10.64$10.83+1.79%$10.87$10.572.17 million shs$1.56 billion04/21/2025$10.56$10.64+0.76%$10.66$10.151.77 million shs$1.53 billion Related Companies TFX Stock Price Chart ITGR Stock Price Chart ATRC Stock Price Chart IART Stock Price Chart OFIX Stock Price Chart ANGO Stock Price Chart SRDX Stock Price Chart ARAY Stock Price Chart RMTI Stock Price Chart RSLS Stock Price Chart Receive ATEC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Alphatec and its competitors with MarketBeat's FREE daily newsletter. 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