iShares S&P 100 ETF (OEF) Chart & Stock Price History $334.18 +1.90 (+0.57%) Closing price 04:10 PM EasternExtended Trading$333.35 -0.83 (-0.25%) As of 06:44 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 AnalysisChartDividendHeadlinesHoldingsOwnershipRatingsShort InterestBuy This Stock iShares S&P 100 ETF Stock Price Performance The iShares S&P 100 ETF (OEF) fund chart highlights key performance trends across multiple timeframes. Over the last 12 months, the fund's price has increased 21.75%, with a year-to-date return of 15.69%. In the past month, the fund has increased 4.64%, reflecting recent market activity. As of the latest close, iShares S&P 100 ETF traded at $332.28 with a market cap of $22.66 billion and volume of 396,149 shares. Five years ago, the fund traded at $154.11, representing a 116.85% increase over that period. At the time, it had a market cap of $6.88 billion and a volume of 187,430 shares. Receive OEF Stock News and Ratings via EmailSign-up to receive the latest news and ratings for iShares S&P 100 ETF 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+1.61%1 Month Performance+4.64%3 Month Performance+14.57%Year-To-Date Performance+15.69%1 Year Performance+21.75%5 Year Performance+116.85% OEF Stock Chart for Monday, September, 22, 2025 OEF Chart by TradingView iShares S&P 100 ETF 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 Capitalization09/22/2025$332.28$334.18+0.57%$334.44$331.75552,382 shs$22.79 billion09/19/2025$330.16$332.28+0.64%$332.72$330.58396,149 shs$22.66 billion09/18/2025$328.88$330.16+0.39%$331.38$329.15925,782 shs$22.52 billion09/17/2025$329.58$328.88-0.21%$329.74$326.311.83 million shs$22.43 billion09/16/2025$330.47$329.58-0.27%$330.26$329.2910.73 million shs$22.48 billion09/15/2025$327.92$330.47+0.78%$330.47$329.17260,646 shs$22.54 billion09/12/2025$327.13$327.92+0.24%$328.56$326.92162,364 shs$22.36 billion09/11/2025$325.50$327.13+0.50%$327.44$325.50336,409 shs$22.31 billion09/10/2025$323.76$325.50+0.54%$326.47$324.53249,546 shs$22.20 billion09/09/2025$322.31$323.76+0.45%$324.05$322.13291,879 shs$22.08 billion Get the Latest News and Ratings for OEF and Related StocksEnter your email address below to receive the latest news and analysts' ratings for iShares S&P 100 ETF and its competitors with MarketBeat's FREE daily newsletter. 09/08/2025$321.66$322.31+0.20%$323.45$321.97271,165 shs$21.98 billion09/05/2025$322.69$321.66-0.32%$324.47$319.92265,502 shs$21.94 billion09/04/2025$320.32$322.69+0.74%$322.89$320.09247,170 shs$22.01 billion09/03/2025$317.78$320.32+0.80%$320.47$318.37172,654 shs$21.85 billion09/02/2025$319.69$317.78-0.60%$317.78$314.59338,845 shs$21.67 billion09/01/2025$319.69$319.69$321.42$319.03171,877 shs$21.80 billion08/29/2025$322.43$319.69-0.85%$321.42$319.03171,877 shs$21.80 billion08/28/2025$321.26$322.43+0.36%$322.62$320.04142,599 shs$21.99 billion08/27/2025$320.19$321.26+0.33%$321.30$319.68238,414 shs$21.91 billion08/26/2025$318.96$320.19+0.39%$320.39$318.03152,180 shs$21.84 billion08/25/2025$319.35$318.96-0.12%$320.22$318.78362,863 shs$21.75 billion08/22/2025$314.77$319.35+1.46%$320.12$315.53281,324 shs$21.78 billion08/21/2025$316.03$314.77-0.40%$316.15$314.02161,647 shs$21.47 billion Related Companies Vanguard S&P 500 Growth ETF Stock Price Chart Schwab Fundamental U.S. Large Company ETF Stock Price Chart ProShares UltraPro QQQ Stock Price Chart Schwab Fundamental International Equity ETF Stock Price Chart SPDR Portfolio S&P 500 Value ETF Stock Price Chart iShares Russell Top 200 Growth ETF Stock Price Chart Invesco S&P 500 Quality ETF Stock Price Chart Vanguard Mega Cap Growth ETF Stock Price Chart Goldman Sachs ActiveBeta U.S. Large Cap Equity ETF Stock Price Chart Vanguard Russell 1000 Value ETF Stock Price Chart Receive OEF Stock News and Ratings via EmailSign-up to receive the latest news and ratings for iShares S&P 100 ETF and its competitors with MarketBeat's FREE daily newsletter. This page (NYSEARCA:OEF) was last updated on 9/22/2025 by MarketBeat.com Staff From Our PartnersWhy More Investors Are Using Family Trusts to Protect Their WealthFor many investors, a family trust can be an essential tool for protecting assets, avoiding probate, and ensur...SmartAsset | SponsoredWhat The Silver Boom Could Mean For You…AI, electric vehicles, and even global central banks are quietly fueling record demand for silver. This once-o...Goldco Precious Metals | SponsoredHe Called Nvidia at $1.10. Now, He Says THIS Stock Will…The original Magnificent Seven returned 16,894%—turning $7K into $1.18 million. 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