OmniAb (OABI) Stock Chart & Stock Price History $1.65 -0.03 (-1.79%) Closing price 04:00 PM EasternExtended Trading$1.64 0.00 (-0.30%) As of 07:48 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 OmniAb Stock Price Performance The OmniAb (OABI) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 57.80%, with a year-to-date return of -53.39%. In the past month, the stock has decreased 3.51%, reflecting recent market activity. As of the latest close, OmniAb traded at $1.68 with a market cap of $241.84 million and volume of 487,319 shares. 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Read our full terms of service and privacy policy. 5 Day Performance+2.48%1 Month Performance-3.51%3 Month Performance-11.76%Year-To-Date Performance-53.39%1 Year Performance-57.80% OABI Stock Chart for Tuesday, October, 7, 2025 OABI Chart by TradingView OmniAb 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 Capitalization10/07/2025$1.68$1.65-1.79%$1.72$1.62518,816 shs$237.53 million10/06/2025$1.63$1.68+3.07%$1.72$1.61487,319 shs$241.84 million10/03/2025$1.61$1.63+1.24%$1.64$1.58452,686 shs$234.65 million10/02/2025$1.61$1.61$1.68$1.58289,773 shs$231.78 million10/01/2025$1.60$1.61+0.63%$1.66$1.59746,268 shs$231.78 million09/30/2025$1.61$1.60-0.62%$1.65$1.58462,325 shs$230.33 million09/29/2025$1.61$1.61$1.62$1.551.90 million shs$231.78 million09/26/2025$1.56$1.61+3.21%$1.61$1.56362,333 shs$231.78 million09/25/2025$1.58$1.56-1.27%$1.58$1.53546,186 shs$224.58 million09/24/2025$1.60$1.58-1.25%$1.61$1.57249,157 shs$227.45 million Get the Latest News and Ratings for OABI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for OmniAb and its competitors with MarketBeat's FREE daily newsletter. 09/23/2025$1.70$1.60-5.88%$1.71$1.58484,840 shs$230.34 million09/22/2025$1.61$1.70+5.59%$1.72$1.58791,299 shs$244.73 million09/19/2025$1.66$1.61-3.01%$1.66$1.581.52 million shs$197.55 million09/18/2025$1.62$1.66+2.47%$1.69$1.62495,773 shs$203.68 million09/17/2025$1.61$1.62+0.62%$1.71$1.60540,119 shs$198.77 million09/16/2025$1.61$1.61$1.66$1.60196,118 shs$197.55 million09/15/2025$1.64$1.61-1.83%$1.68$1.54939,164 shs$197.55 million09/12/2025$1.60$1.64+2.50%$1.65$1.58436,765 shs$201.23 million09/11/2025$1.57$1.60+1.91%$1.62$1.55469,025 shs$196.32 million09/10/2025$1.57$1.57$1.61$1.55377,550 shs$192.64 million09/09/2025$1.59$1.57-1.26%$1.60$1.55435,725 shs$192.64 million09/08/2025$1.71$1.59-7.02%$1.71$1.57335,861 shs$195.09 million Related Companies Fiverr International Stock Price Chart MultiPlan Stock Price Chart NerdWallet Stock Price Chart MNTN Stock Price Chart MediaAlpha Stock Price Chart Paysafe Stock Price Chart Riskified Stock Price Chart Cars.com Stock Price Chart Bowman Consulting Group Stock Price Chart Ibotta Stock Price Chart Receive OABI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for OmniAb and its competitors with MarketBeat's FREE daily newsletter. 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