Amprius Technologies (AMPX) Stock Chart & Stock Price History $6.80 +0.06 (+0.82%) Closing price 03:59 PM EasternExtended Trading$6.79 0.00 (-0.01%) As of 06:09 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 InterestTrendsBuy This Stock Amprius Technologies Stock Price Performance The Amprius Technologies (AMPX) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 529.17%, with a year-to-date return of 142.68%. In the past month, the stock has decreased 19.18%, reflecting recent market activity. As of the latest close, Amprius Technologies traded at $6.73 with a market cap of $841.14 million and volume of 4.92 million shares. Receive AMPX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Amprius Technologies and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-3.89%1 Month Performance-19.18%3 Month Performance+180.21%Year-To-Date Performance+142.68%1 Year Performance+529.17% AMPX Stock Chart for Thursday, August, 21, 2025 AMPX Chart by TradingView Amprius Technologies 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 Capitalization08/20/2025$6.72$6.73+0.09%$6.83$6.364.92 million shs$841.14 million08/19/2025$7.19$6.72-6.52%$7.20$6.684.55 million shs$840.41 million08/18/2025$7.07$7.19+1.67%$7.31$6.864.07 million shs$899.08 million08/15/2025$7.44$7.07-5.00%$7.43$6.944.89 million shs$833.77 million08/14/2025$7.63$7.44-2.46%$7.75$7.215.32 million shs$877.61 million08/13/2025$7.77$7.63-1.74%$8.07$7.0512.86 million shs$899.81 million08/12/2025$7.69$7.77+1.04%$8.16$7.558.75 million shs$915.73 million08/11/2025$8.04$7.69-4.42%$8.51$7.6310.47 million shs$906.27 million08/08/2025$7.72$8.04+4.20%$9.66$7.6421.57 million shs$948.13 million08/07/2025$7.90$7.72-2.27%$8.05$7.436.63 million shs$909.95 million Get the Latest News and Ratings for AMPX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Amprius Technologies and its competitors with MarketBeat's FREE daily newsletter. 08/06/2025$8.31$7.90-4.99%$8.36$7.808.04 million shs$931.06 million08/05/2025$7.56$8.31+9.92%$8.49$7.6811.07 million shs$980.00 million08/04/2025$6.36$7.56+18.87%$7.79$6.769.97 million shs$891.53 million08/01/2025$6.93$6.36-8.16%$6.58$6.077.08 million shs$750.02 million07/31/2025$7.01$6.93-1.21%$7.33$6.836.32 million shs$816.67 million07/30/2025$7.16$7.01-2.03%$7.35$6.876.11 million shs$826.69 million07/29/2025$8.29$7.16-13.69%$8.15$7.0810.10 million shs$843.77 million07/28/2025$8.19$8.29+1.22%$8.65$7.997.27 million shs$977.64 million07/25/2025$8.29$8.19-1.16%$8.35$7.866.06 million shs$965.85 million07/24/2025$7.99$8.29+3.65%$8.38$7.756.96 million shs$977.17 million07/23/2025$8.16$7.99-1.99%$8.56$7.817.93 million shs$942.71 million07/22/2025$8.41$8.16-3.00%$8.47$7.6611.98 million shs$961.84 million07/21/2025$8.69$8.41-3.25%$9.09$8.3612.37 million shs$991.56 million Related Companies RUN Stock Price Chart ENVX Stock Price Chart ENR Stock Price Chart PLUG Stock Price Chart ATKR Stock Price Chart FLNC Stock Price Chart EOSE Stock Price Chart MVST Stock Price Chart SLDP Stock Price Chart NPWR Stock Price Chart Receive AMPX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Amprius Technologies and its competitors with MarketBeat's FREE daily newsletter. This page (NYSE:AMPX) was last updated on 8/21/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredAlex’s “Next Magnificent Seven” stocksThe original “Magnificent Seven” turned $7K into $1.18 million. Now, Alex Green has identified AI’s Next Ma...The Oxford Club | SponsoredBONUS GUIDE - Ben Stein Prepares For the Next Financial CrisisWith inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. Economist ...Goldco Precious Metals | SponsoredOut of 18,347 Cryptocurrencies... This is the ONLY OneThe Single Most Undervalued DeFi Protocol You've Never Heard Of If there's one cryptocurrency you should b...Crypto 101 Media | SponsoredGENIUS Act: Cancel Your Money?A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. B...Priority Gold | SponsoredElon’s Secret Social Security BombshellTo All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social S...Banyan Hill Publishing | 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 | SponsoredTrump set to Boost Social Security Checks by 400%?If you're collecting or planning to collect social security... You should see this presentation about Presi...InvestorPlace | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Amprius Technologies, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Amprius Technologies With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
MarketBeat All Access