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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 April 7, 2026, OEF stock price climbed to $322.20 with 885,086 million shares trading.
OEF has a beta of 1.08, meaning it tends to be more sensitive to market movements. OEF has a correlation of 0.98 to the broad based SPY ETF.
OEF has a market cap of $17.96 billion. This is considered a Large Cap stock.
In the last 3 years, OEF traded as high as $349.08 and as low as $185.37.
OEF has outperformed the market in the last year with a return of +33.2%, while the SPY ETF gained +31.9%. However, in the most recent history, OEF shares have underperformed the stock market with its stock returning -6.4% in the last 3 month period and +0.3% for the last 2 week period, while SPY has returned -4.5% and +0.6%, respectively.
OEF support price is $318.03 and resistance is $325.77 (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.
