Harmonic (HLIT) Stock Chart & Stock Price History $10.00 +0.09 (+0.91%) Closing price 04:00 PM EasternExtended Trading$10.01 +0.01 (+0.05%) As of 05:27 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 Harmonic Stock Price Performance The Harmonic (HLIT) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 25.43%, with a year-to-date return of -24.41%. In the past month, the stock has increased 11.48%, reflecting recent market activity. As of the latest close, Harmonic traded at $9.91 with a market cap of $1.13 billion and volume of 704,169 shares. Five years ago, the stock traded at $5.67, representing a 76.37% increase over that period. At the time, it had a market cap of $552.42 million and a volume of 359,331 shares. Receive HLIT Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Harmonic 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+1.63%1 Month Performance+11.48%3 Month Performance+12.99%Year-To-Date Performance-24.41%1 Year Performance-25.43%5 Year Performance+76.37% HLIT Stock Chart for Monday, September, 15, 2025 HLIT Chart by TradingView Harmonic 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 Capitalization09/15/2025$9.91$10.00+0.91%$10.19$9.91959,523 shs$1.14 billion09/12/2025$10.12$9.91-2.08%$10.10$9.77704,169 shs$1.13 billion09/11/2025$9.84$10.12+2.85%$10.19$9.841.04 million shs$1.15 billion09/10/2025$9.91$9.84-0.71%$9.97$9.78522,702 shs$1.12 billion09/09/2025$9.95$9.91-0.40%$10.00$9.83578,194 shs$1.13 billion09/08/2025$10.04$9.95-0.90%$10.13$9.94789,236 shs$1.13 billion09/05/2025$9.92$10.04+1.21%$10.07$9.84970,907 shs$1.14 billion09/04/2025$9.77$9.92+1.54%$9.96$9.751.18 million shs$1.13 billion09/03/2025$9.60$9.77+1.77%$9.81$9.47900,938 shs$1.11 billion09/02/2025$9.62$9.60-0.21%$9.62$9.331.27 million shs$1.09 billion Get the Latest News and Ratings for HLIT and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Harmonic and its competitors with MarketBeat's FREE daily newsletter. 09/01/2025$9.62$9.62$9.81$9.52668,089 shs$1.09 billion08/29/2025$9.72$9.62-1.03%$9.81$9.52668,089 shs$1.09 billion08/28/2025$9.49$9.72+2.42%$9.74$9.451.35 million shs$1.11 billion08/27/2025$9.42$9.49+0.74%$9.58$9.36977,717 shs$1.08 billion08/26/2025$9.35$9.42+0.75%$9.51$9.281.37 million shs$1.07 billion08/25/2025$9.19$9.35+1.74%$9.42$9.131.61 million shs$1.06 billion08/22/2025$8.81$9.19+4.31%$9.24$8.852.18 million shs$1.05 billion08/21/2025$8.76$8.81+0.57%$8.85$8.671.22 million shs$1.00 billion08/20/2025$9.00$8.76-2.67%$9.11$8.69776,424 shs$996.54 million08/19/2025$9.05$9.00-0.55%$9.16$8.96999,706 shs$1.02 billion08/18/2025$8.97$9.05+0.89%$9.14$8.89939,600 shs$1.03 billion08/15/2025$8.89$8.97+0.90%$9.10$8.90828,500 shs$1.02 billion08/14/2025$9.22$8.89-3.58%$9.14$8.87877,948 shs$1.01 billion Related Companies AUDC Stock Price Chart CLFD Stock Price Chart ANET Stock Price Chart OOMA Stock Price Chart VSAT Stock Price Chart CALX Stock Price Chart EXTR Stock Price Chart BELFB Stock Price Chart DGII Stock Price Chart NTGR Stock Price Chart Receive HLIT Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Harmonic and its competitors with MarketBeat's FREE daily newsletter. 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