SectorSurfer Logo

Is your portfolio prepared for the next market shift? SectorSurfer's award-winning algorithms help investors achieve higher returns with lower risk through automated sector rotation and StormGuard protection.

Learn how our proprietary technology identifies momentum leaders in any market condition, automatically shifting to defensive positions during downturns.

Start Your Free Trial

#InvestingStrategy #SectorRotation #PortfolioManagement #WealthBuilding

SectorSurfer Dashboard

Higher Returns with Lower Risk: The SectorSurfer Advantage

OEF iShares S&P 100 ETF

Category: Large Cap Growth Equities

Inception: 2000-10-23 Issuer: BlackRock, Inc.
Net Assets
$16.5B
Expense Ratio
0.20 %
# of Holdings
102
Average Daily Volume
500K

Fund Overview

The iShares S&P 100 ETF (OEF) is an exchange-traded fund that seeks to track the investment results of the S&P 100 Index. This index comprises 100 of the largest U.S. companies with strong liquidity and market capitalization, representing a diversified cross-section of industries. OEF provides investors with exposure to blue-chip stocks, including well-known names like Apple, Microsoft, and Amazon. The fund is designed for those seeking broad large-cap equity exposure with lower volatility compared to the broader S&P 500. OEF is one of the most liquid ETFs in the large-cap space, making it a popular choice for both retail and institutional investors.
Asset Class
Equity
Industry
N/A
Annual Dividend Rate
Smart Beta
No
Leveraged / Inverse
N/A / No
Dividend Quality - Yield
 - 1.01 %
Currency Hedged
No
Portfolio Turnover
3 %
Dividend Date

Why Invest in the OEF ETF?

Potential Benefits

  • Provides exposure to 100 of the largest and most liquid U.S. companies, offering stability and diversification.
  • Lower volatility compared to the broader S&P 500 due to its focus on established blue-chip stocks.
  • Highly liquid ETF with tight bid-ask spreads, making it cost-effective for trading.
  • Competitive expense ratio compared to other large-cap ETFs, enhancing long-term returns.
  • Strong historical performance, benefiting from the growth of mega-cap companies.

Potential Risks

  • Concentration risk, as the top holdings account for a significant portion of the fund's assets.
  • Susceptible to underperformance during market cycles where smaller or mid-cap stocks outperform large caps.
  • Exposure to sector-specific risks, particularly in technology and financials, which dominate the index.
  • Market-cap weighting means the fund is heavily influenced by the performance of a few mega-cap stocks.
  • Dividend yields may be lower than value-oriented or dividend-focused ETFs.

Performance

1 Week 1 Month 1 Year 3 Years 5 Years YTD 2025 2024 Since Inception
-0.34% +1.46% +16.20% +96.79% +106.99% +13.18% +20.13% +31.60% +784.02%

Performance


Monthly Returns (%)

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2026 +0.2% -2.5% -4.8% +11.5% +6.4% -2.8% +0.9% +3.0% +0.8% +0.7% - -
2025 +2.0% -1.5% -6.5% -0.8% +7.3% +5.8% +3.0% +2.0% +4.3% +3.7% -0.3% -0.1%
2024 +2.3% +5.5% +2.9% -3.6% +5.8% +5.0% +0.3% +2.3% +2.3% -0.6% +5.5% -0.2%
2023 +6.4% -2.1% +5.7% +2.2% +2.5% +6.0% +3.4% -1.2% -4.9% -1.6% +9.2% +3.9%
2022 -4.6% -3.8% +4.1% -10.0% -0.2% -7.7% +9.3% -4.5% -9.4% +6.9% +5.1% -6.2%
2021 -0.5% +1.3% +4.3% +5.6% +0.4% +3.2% +2.5% +3.5% -4.8% +7.5% -0.2% +3.8%
2020 +0.4% -8.2% -10.2% +12.6% +4.2% +2.8% +5.7% +8.9% -4.6% -3.2% +10.2% +3.7%
2019 +7.1% +3.0% +2.3% +4.4% -6.7% +6.9% +1.7% -1.7% +2.0% +2.8% +3.8% +3.2%
2018 +5.8% -3.9% -3.5% +0.3% +2.7% +0.6% +4.1% +3.8% +0.7% -6.5% +1.5% -8.8%
2017 +1.3% +4.5% 0.0% +1.0% +1.0% +0.6% +2.1% +0.7% +1.7% +2.4% +2.9% +1.6%
< -5% -5% to -2% -2% to 0% 0% 0% to +2% +2% to +5% > +5%

Top Holdings (by weight)

Symbol Company Name Weight
MSFT MICROSOFT CORP 8.9 %
AAPL APPLE INC 8.8 %
NVDA NVIDIA CORP 8.0 %
AMZN AMAZON.COM INC 5.4 %
META META PLATFORMS INC CLASS A 3.8 %
BRK-B BERKSHIRE HATHAWAY INC CLASS B 3.1 %
GOOGL ALPHABET INC CLASS A 2.9 %
AVGO BROADCOM INC 2.5 %
GOOG ALPHABET INC CLASS C 2.3 %
TSLA TESLA INC 2.1 %
Top 10 holdings shown, out of 102 total holdings.

Related ETFs: OEF vs Peers

ETF Full Name Expense Ratio Net Assets Holdings Asset Class
IVV iShares Core S&P 500 ETF 0.03 % $579.9B 505 Equity
IWB iShares Russell 1000 ETF 0.15 % $37.2B 1 Equity
MGK Vanguard Mega Cap Growth ETF 0.07 % $22.6B 70 Equity
RSP Invesco S&P 500® Equal Weight ETF 0.20 % $71.6B 505 Equity
SCHX Schwab U.S. Large-Cap ETF 0.03 % $49.8B 750 Equity
SPLG SPDR Portfolio S&P 500 ETF 0.02 % $58.8B 505 Equity
SPY SPDR S&P 500 ETF Trust 0.09 % $576B 504 Equity
VOO Vanguard S&P 500 ETF 0.03 % $1300B 506 Equity
VTI Vanguard Total Stock Market ETF 0.03 % $1700B 3 Equity
VV Vanguard Large Cap ETF 0.04 % $55.6B 494 Equity
Comparison highlights key differences on cost, coverage, and focus within sector ETFs.

Investment Strategy

The iShares S&P 100 ETF (OEF) aims to replicate the performance of the S&P 100 Index, a market-cap-weighted index of 100 leading U.S. companies. The index methodology selects stocks based on market capitalization, liquidity, and sector representation. OEF primarily holds common stocks of these large-cap companies, with periodic rebalancing to align with index changes. The fund is passively managed, meaning it does not attempt to outperform the index but seeks to closely track its returns. Rebalancing occurs quarterly to reflect changes in the index composition, ensuring the fund maintains its target allocations.

Frequently Asked Questions

What is the expense ratio of OEF?

OEF has an expense ratio of 0.20%, which is competitive among large-cap ETFs.

How often does OEF rebalance its holdings?

OEF rebalances quarterly to align with changes in the S&P 100 Index.

Does OEF pay dividends?

Yes, OEF pays quarterly dividends, derived from the dividends of its underlying holdings.

How does OEF differ from the S&P 500 ETFs like SPY?

OEF tracks the S&P 100 Index, which includes only the largest 100 companies, whereas SPY tracks the broader S&P 500, offering more diversification but potentially higher volatility.

Is OEF suitable for long-term investing?

Yes, OEF is well-suited for long-term investors seeking stable exposure to blue-chip U.S. stocks with lower volatility compared to the broader market.

Industry Overview

The iShares S&P 100 ETF (OEF) invests in large-cap U.S. equities, a cornerstone of many investment portfolios. Large-cap stocks are known for their stability, strong balance sheets, and ability to weather economic downturns. The S&P 100 Index, which OEF tracks, includes industry leaders across technology, healthcare, financials, and consumer sectors. Investing in OEF offers exposure to companies with global reach and competitive advantages, making it a core holding for long-term investors seeking growth and relative safety. The large-cap segment is often favored during periods of economic uncertainty due to its resilience.

Alternative Comparison

Compared to SPY (SPDR S&P 500 ETF), OEF offers more concentrated exposure to the largest U.S. companies, which can result in lower volatility but also less diversification. Unlike RSP (Invesco S&P 500 Equal Weight ETF), which equal-weights its holdings, OEF's market-cap weighting means it is heavily influenced by the performance of top mega-cap stocks. OEF's expense ratio is competitive with other large-cap ETFs like IVV (iShares Core S&P 500 ETF), though it provides a narrower focus on blue-chip stocks. Investors seeking broad market exposure may prefer VTI (Vanguard Total Stock Market ETF), while those prioritizing mega-caps may find OEF more suitable.

Issuer Overview

The iShares S&P 100 ETF (OEF) is issued by BlackRock, the world's largest asset manager. BlackRock is known for its extensive lineup of iShares ETFs, which cover a wide range of asset classes and investment strategies. With trillions in assets under management, BlackRock leverages its scale to offer cost-efficient and liquid investment products. iShares ETFs are widely regarded for their transparency, robust infrastructure, and adherence to index-tracking methodologies.

Conclusion

The iShares S&P 100 ETF (OEF) is a compelling choice for investors seeking exposure to the largest and most stable U.S. companies. Its focus on blue-chip stocks offers a balance of growth potential and reduced volatility, making it a core holding for long-term portfolios. While it carries concentration risks, its low cost, liquidity, and strong historical performance make it a standout in the large-cap ETF space. Investors should consider their risk tolerance and diversification needs when evaluating OEF against broader market ETFs.

Boost Your Returns with SectorSurfer

Award-winning investment strategy automation

SectorSurfer Logo
ETF Profile for . Data intended for informational purposes only. © 2026