Oceaneering International (OII) Stock Chart & Stock Price History $19.19 -0.36 (-1.84%) As of 10:38 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Oceaneering International Stock Price Performance The Oceaneering International (OII) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 21.00%, with a year-to-date return of -26.42%. In the past month, the stock has increased 10.16%, reflecting recent market activity. As of the latest close, Oceaneering International traded at $19.52 with a market cap of $1.96 billion and volume of 484,620 shares. Five years ago, the stock traded at $5.42, representing a 254.06% increase over that period. At the time, it had a market cap of $499.32 million and a volume of 1.37 million shares. Receive OII Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Oceaneering International and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-2.32%1 Month Performance+10.16%3 Month Performance-14.77%Year-To-Date Performance-26.42%1 Year Performance-21.00%5 Year Performance+254.06% OII Stock Chart for Wednesday, May, 21, 2025 OII Chart by TradingView Oceaneering International 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 Capitalization05/20/2025$19.74$19.52-1.11%$19.77$19.49484,620 shs$1.96 billion05/19/2025$19.65$19.74+0.48%$19.77$19.06710,921 shs$1.99 billion05/16/2025$19.84$19.65-0.98%$19.95$19.41581,183 shs$1.98 billion05/15/2025$20.12$19.84-1.39%$19.91$19.46565,666 shs$2.00 billion05/14/2025$20.02$20.12+0.50%$20.34$19.77713,985 shs$2.02 billion05/13/2025$19.85$20.02+0.86%$20.20$19.87490,729 shs$2.01 billion05/12/2025$19.02$19.85+4.36%$20.64$19.62700,751 shs$2.00 billion05/09/2025$18.98$19.02+0.24%$19.51$18.94687,125 shs$1.91 billion05/08/2025$18.40$18.98+3.13%$19.27$18.70657,825 shs$1.91 billion05/07/2025$18.65$18.40-1.34%$18.72$18.31547,194 shs$1.85 billion Get the Latest News and Ratings for OII and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Oceaneering International and its competitors with MarketBeat's FREE daily newsletter. 05/06/2025$18.35$18.65+1.63%$18.89$18.27677,775 shs$1.88 billion05/05/2025$19.05$18.35-3.67%$18.82$18.33546,556 shs$1.85 billion05/02/2025$18.69$19.05+1.93%$19.12$18.58635,191 shs$1.92 billion05/01/2025$17.75$18.69+5.30%$18.94$17.75974,719 shs$1.89 billion04/30/2025$18.48$17.75-3.92%$18.20$17.531.05 million shs$1.79 billion04/29/2025$17.94$18.48+2.98%$18.68$17.701.12 million shs$1.87 billion04/28/2025$17.83$17.94+0.62%$18.05$17.581.57 million shs$1.81 billion04/25/2025$17.93$17.83-0.53%$17.87$17.291.23 million shs$1.80 billion04/24/2025$17.27$17.93+3.79%$18.59$16.831.80 million shs$1.81 billion04/23/2025$17.37$17.27-0.54%$18.13$17.021.15 million shs$1.75 billion04/22/2025$17.42$17.37-0.32%$17.61$16.871.41 million shs$1.76 billion04/21/2025$17.87$17.42-2.54%$17.67$17.141.34 million shs$1.76 billion Related Companies NOV Stock Price Chart Tidewater Stock Price Chart RPC Stock Price Chart Helix Energy Solutions Group Stock Price Chart TETRA Technologies Stock Price Chart Oil States International Stock Price Chart Natural Gas Services Group Stock Price Chart Forum Energy Technologies Stock Price Chart Gulf Island Fabrication Stock Price Chart Geospace Technologies Stock Price Chart Receive OII Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Oceaneering International and its competitors with MarketBeat's FREE daily newsletter. 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