NovaBay Pharmaceuticals (NBY) Stock Chart & Stock Price History $0.57 +0.01 (+1.23%) Closing price 05/22/2025 04:10 PM EasternExtended Trading$0.56 0.00 (-0.35%) As of 05/22/2025 06:34 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 AnalysisChartEarningsHeadlinesInsider TradesSEC FilingsShort InterestBuy This Stock NovaBay Pharmaceuticals Stock Price Performance The NovaBay Pharmaceuticals (NBY) stock chart highlights key performance trends across multiple timeframes. In the past month, the stock has decreased 1.77%, reflecting recent market activity. As of the latest close, NovaBay Pharmaceuticals traded at $0.57 with a market cap of $2.39 million and volume of 6,967 shares. Receive NBY Stock News and Ratings via EmailSign-up to receive the latest news and ratings for NovaBay Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-3.90%1 Month Performance-1.77% NBY Stock Chart for Friday, May, 23, 2025 NBY Chart by TradingView NovaBay Pharmaceuticals 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 Capitalization05/22/2025$0.56$0.57+1.23%$0.57$0.556,967 shs$2.39 million05/21/2025$0.59$0.56-5.08%$0.60$0.5610,400 shs$2.36 million05/20/2025$0.59$0.59+0.02%$0.60$0.597,713 shs$2.48 million05/19/2025$0.59$0.59$0.60$0.595,391 shs$2.48 million05/16/2025$0.58$0.59+1.72%$0.60$0.5822,098 shs$2.48 million05/15/2025$0.60$0.58-2.52%$0.59$0.5531,907 shs$2.44 million05/14/2025$0.59$0.60+1.28%$0.61$0.57153,330 shs$2.51 million05/13/2025$0.55$0.59+6.80%$0.62$0.5561,297 shs$2.47 million05/12/2025$0.56$0.55-2.46%$0.59$0.5542,539 shs$2.32 million05/09/2025$0.57$0.56-1.09%$0.57$0.5187,942 shs$2.37 million Get the Latest News and Ratings for NBY and Related StocksEnter your email address below to receive the latest news and analysts' ratings for NovaBay Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 05/08/2025$0.58$0.57-1.69%$0.59$0.5610,043 shs$2.40 million05/07/2025$0.58$0.58-0.09%$0.64$0.52270,294 shs$2.44 million05/06/2025$0.58$0.58-0.67%$0.59$0.5814,250 shs$2.44 million05/05/2025$0.59$0.58-0.38%$0.59$0.5710,529 shs$2.46 million05/02/2025$0.59$0.59-0.58%$0.59$0.5626,202 shs$2.47 million05/01/2025$0.58$0.59+1.72%$0.59$0.5819,844 shs$2.48 million04/30/2025$0.59$0.58-0.85%$0.60$0.5846,367 shs$2.44 million04/29/2025$0.59$0.59$0.61$0.5828,310 shs$2.46 million04/28/2025$0.58$0.59+0.86%$0.59$0.585,999 shs$2.46 million04/25/2025$0.57$0.58+1.72%$0.59$0.5712,273 shs$2.44 million04/24/2025$0.58$0.57-1.21%$0.60$0.5710,863 shs$2.40 million04/23/2025$0.58$0.58-1.27%$0.59$0.5641,600 shs$2.43 million04/22/2025$0.60$0.58-2.58%$0.60$0.5785,867 shs$2.46 million Related Companies PHGE Stock Price Chart KPRX Stock Price Chart BETRF Stock Price Chart DWTX Stock Price Chart ORGS Stock Price Chart PHIO Stock Price Chart SNSE Stock Price Chart BMRA Stock Price Chart CELZ Stock Price Chart NEUP Stock Price Chart Receive NBY Stock News and Ratings via EmailSign-up to receive the latest news and ratings for NovaBay Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. This page (NYSEAMERICAN:NBY) was last updated on 5/23/2025 by MarketBeat.com Staff From Our PartnersWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... A single announcement by July 22nd could soon b...Altimetry | SponsoredJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. And it's one the Big Banks are alread...Premier Gold Co | SponsoredThis Signal Only Flashes Once Every 4 Years – And It Just TriggeredThis same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...Crypto Swap Profits | SponsoredElon Set to Shock the World on June 1st?Tech legend Jeff Brown recently traveled to the industrial zone of South Memphis to investigate what he believ...Brownstone Research | SponsoredA grave, grave error.I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we...Porter & Company | SponsoredWhy Elon put $51 million into thisWhy Elon Musk Just Invested $51 Million Into Brand New “Miracle Metal” Developed by MIT ScientistsTrue Market Insiders | Sponsored3..2..1.. AI 2.0 ignition (don’t sleep on this)I just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | SponsoredGold Alert: The Truth About Fort Knox Is ComingOwning physical gold isn’t the best way to profit. I’ve found a better way to invest in gold—one that’s alr...Golden Portfolio | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding NovaBay Pharmaceuticals, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share NovaBay Pharmaceuticals 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.