28-Aug-2026
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The iShares S&P 100 Index Fund seeks investment results that correspond generally to the price and yield performance before fees and expenses of U.S. large-cap stocks as represented by the Standard & Poors 100 Index.
iShares S&P 100 ETF trades on the ARCA stock market under the symbol OEF.
As of August 28, 2026, OEF stock price climbed to $380.91 with 218,015 million shares trading.
OEF has a beta of 1.12, meaning it tends to be more sensitive to market movements. OEF has a correlation of 0.96 to the broad based SPY ETF.
OEF has a market cap of $20.45 billion. This is considered a Large Cap stock.
In the last 3 years, OEF traded as high as $384.82 and as low as $193.00.
OEF has underperformed the market in the last year with a return of +19.1%, while the SPY ETF gained +19.7%. In the last 3 month period, OEF fell short of the market, returning +1.4%, while SPY returned +2.2%. However, in the most recent 2 weeks OEF has outperformed the stock market by returning -0.4%, while SPY returned -0.9%.
OEF support price is $378.28 and resistance is $383.50 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that OEF shares will trade within this expected range on the day.