DV
Dividend Vision

ETF Comparison

OEF vs VOO: Which Is the Better Pick in 2026?

A head-to-head comparison of iShares S&P 100 ETF and Vanguard S&P 500 ETF covering yield, cost, risk, and income potential.

Data updated August 13, 2026

Best for

  • OEFInvestors who want broad equity exposure.
  • VOOInvestors who want simple, diversified core exposure in one low-cost fund.

Jump to the side-by-side numbers

Side-by-side snapshot

Side-by-side snapshot. Each row is one metric; each column is one fund.
MetricOEFVOO
Full nameiShares S&P 100 ETFVanguard S&P 500 ETF
IssueriSharesVanguard
Last Close$381.33 as of August 13, 2026$710.17 as of August 13, 2026
Distribution yield0.77%1.11%
Distribution Safety Score™ 96100
Expense ratio0.20%0.03%
AUM$20.4B$1032B
Distribution frequencyQuarterlyQuarterly
Underlying indexS&P 100 IndexS&P 500 Index
ObjectiveProvide exposure to the fund's underlying index or strategy per issuer materials.Track the performance of the S&P 500 Index, representing 500 of the largest U.S. companies.
Asset classEquityEquity
Inception date10/23/200009/07/2010
Beta1.051.0
Last dividend$0.7312$1.9622
Ex-dividend date06/15/202606/26/2026

Bottom lineChoose OEF if you want broad equity exposure. Choose VOO if you want simple, diversified core exposure in one low-cost fund.

Model this comparison:
Compare in my portfolio Forecast income Save to watchlist

Income calculator

See how much monthly income a hypothetical investment would generate in each ETF at current yields.

iShares
ETFs469
Total AUM$4661B

ETFs and AUM reflect what Dividend Vision tracks — the issuer's full lineup may be larger.

iShares is one of the largest ETF providers globally, known for offering a broad, diversified lineup of exchange-traded funds across multiple asset classes and investment strategies. The company operates 215 funds spanning 15 distinct families, including popular offerings in dividend income, covered call strategies, bonds, equities, ESG-focused investments, and factor-based approaches, with widely-held tickers like AGG (bond), ACWI (global equity), and AOA (allocation). iShares is characterized by its comprehensive fund ecosystem that serves both core portfolio holdings and specialized investment strategies, making it a prominent player for investors seeking both traditional and alternative income-generating ETF solutions.

See our curated list of related YouTube videos on OEF.

See all iShares ETFs
Vanguard
ETFs116
Total AUM$4657B

ETFs and AUM reflect what Dividend Vision tracks — the issuer's full lineup may be larger.

Vanguard is one of the largest and most established ETF issuers, known for low-cost, broadly diversified fund offerings built on passive indexing principles. Their lineup spans multiple asset classes and strategies, including core equity and bond index funds, dividend-focused portfolios, ESG-screened options, factor-based strategies, sector exposure, target-date retirement funds, and international investments across developed and emerging markets. The platform is characterized by its emphasis on accessibility and cost efficiency across a comprehensive range of fund families, serving both individual investors seeking broad market exposure and those pursuing specific income, sustainability, or thematic objectives.

See our curated list of related YouTube videos on VOO.

See all Vanguard ETFs

Want to go deeper?

Add these ETFs to a sample portfolio and forecast your dividend income over 5+ years — free to start, no credit card.

Compare in my portfolio Forecast income Save to watchlist

Visual comparison

Key metrics

Projected income on $10K

Projections assume the current yield and share price remain constant. Actual results will vary.

Total returns

OEF has lagged VOO over the trailing twelve months, posting a 21.62% total return against 22.93%. The picture flips over 10 years, though — OEF has compounded at 16.40% a year, ahead of VOO at 15.36%. Figures are total returns: price change plus every distribution reinvested.

Total return and risk statistics by fund. Each row is one fund; each column is one period or statistic.
SymbolYTD1Y3Y5Y10YSince Sep 2010Volatility Sharpe Sortino Max drawdown
OEF11.93%21.62%23.39%14.70%16.40%15.57%16.1%1.031.49-19.8%
VOO13.72%22.93%21.55%13.31%15.36%15.08%15.0%1.011.46-18.7%

Total return with all distributions reinvested on the ex-dividend date, split-adjusted, as of August 12, 2026. YTD and 1Y are cumulative; longer windows are annualized. “Since Sep 2010” measures every fund from September 9, 2010 — the youngest fund's first trading day — so all funds share one comparison window. Volatility is the annualized standard deviation of daily total returns over the trailing 3 years. Sharpe and Sortino divide the annualized return in excess of the risk-free rate by, respectively, that volatility and the downside deviation (both over the trailing 3 years) — higher is better. Max drawdown is the largest peak-to-trough total-return decline over the same window — shallower is better.

Quick verdict

OEF (iShares S&P 100 ETF) and VOO (Vanguard S&P 500 ETF) are both quarterly-pay dividend ETFs, but they take different approaches.

VOO offers the higher yield at 1.11% vs 0.77% for OEF. A higher yield means more current income per dollar invested, though it may come with different risk characteristics.

VOO is cheaper with an expense ratio of 0.03% compared to 0.20%.

They track different benchmarks: OEF is linked to S&P 100 Index while VOO tracks S&P 500 Index, which means their performance drivers differ.

VOO is the larger fund by assets ($1032B), which generally means tighter spreads and better liquidity.

Deep dive

Yield & income

On a $10,000 investment, OEF would generate roughly $6.42/month, while VOO would produce $9.25/month, at current distribution rates. Both pay quarterly distributions.

OEF yield0.77%
VOO yield1.11%
Monthly diff on $10K$2.83

Cost & efficiency

Over 10 years on $10,000, OEF would cost approximately $200 in fees vs $30 for VOO (simplified, not compounded). The $170.00 difference may be offset by yield or performance.

OEF ER0.20%
VOO ER0.03%

Strategy & risk

OEF tracks S&P 100 Index with an index approach, while VOO tracks S&P 500 Index with a large cap approach. Beta is 1.05 for OEF and 1.0 for VOO, indicating VOO is less volatile relative to the market.

OEF beta1.05
VOO beta1.0

Fund details

OEF is managed by iShares (launched 10/23/2000) with $20.4B in assets. VOO is managed by Vanguard (launched 09/07/2010) with $1032B in assets.

OEF AUM$20.4B
VOO AUM$1032B
Ready to act?
Open in Comparator Model in portfolio See pricing

Enjoyed this page?

Do us a favor — if you found this comparison useful, please share it with a friend researching dividend ETFs.

Frequently asked questions

What is the current distribution yield for OEF and VOO?

OEF currently distributes 0.77% and VOO 1.11%, based on fund data updated August 2026. Distribution yield moves with both the payout and the share price, so check the as-of date before relying on either figure.

Is OEF or VOO better for dividend income?

It depends on your goals. VOO currently offers the higher distribution yield, which means more income per dollar invested. However, a lower-yield fund may offer better total return or lower volatility. Consider your time horizon and risk tolerance.

What is the difference between OEF and VOO?

OEF (iShares S&P 100 ETF) tracks S&P 100 Index with an index approach, while VOO (Vanguard S&P 500 ETF) tracks S&P 500 Index with a large cap approach. They are issued by iShares and Vanguard respectively.

Can I hold both OEF and VOO?

Yes — nothing prevents holding both. Whether the combination actually diversifies depends on how much the underlying exposures overlap, which isn't fully measurable from the data on this page; review each security's holdings, sector, and strategy before treating them as complementary.

Is OEF or VOO safer?

By Dividend Vision's Distribution Safety Score — a rules-based 0–100 estimate of how resilient a distribution looks, where higher is safer — VOO scores 100, OEF scores 96, so VOO's payout currently looks the more resilient of the two. No score makes an investment risk-free — treat this as a screening signal, not a guarantee.

Which has lower fees, OEF or VOO?

OEF has an expense ratio of 0.20% while VOO charges 0.03%. Lower fees mean more of your investment returns stay in your pocket over time.

How much income does $10,000 in OEF vs VOO generate?

At current rates, $10,000 in OEF would generate roughly $6.42 per month ($77.00 annually). The same in VOO would produce about $9.25 per month ($111.00 annually).

Which has performed better historically, OEF or VOO?

OEF has lagged VOO over the trailing twelve months, posting a 21.62% total return against 22.93%. The picture flips over 10 years, though — OEF has compounded at 16.40% a year, ahead of VOO at 15.36%. Figures are total returns: price change plus every distribution reinvested. Past performance does not guarantee future results.

More comparisons to explore

OEF vs VOO — at a glance

Generated August 8, 2026.

Overview

OEF and VOO are both large-cap U.S. equity ETFs tracking different S&P indexes. OEF holds the 100 largest companies via the S&P 100, while VOO holds the 500 largest via the S&P 500. The key distinction is breadth: OEF is a concentrated large-cap play, whereas VOO offers broader exposure to the U.S. large-cap market.

How they differ

OEF tracks only the S&P 100's 100 largest companies; VOO covers the S&P 500's 500 largest, making VOO roughly 5x broader in its holdings. That concentration difference shows up in volatility: OEF has a beta of 1.05, meaning it tends to move slightly more than the broader market, while VOO's beta is 1.0. On yield, VOO pulls ahead at 1.10% versus OEF's 0.76%, though both pay quarterly. Cost is the starkest divide: VOO's expense ratio is 0.03% against OEF's 0.20%, a seven-fold difference that compounds over decades. AUM tells a similar story—VOO sits at $1032B versus OEF's $20.4B, reflecting investor preference for the broader, cheaper option.

Who each is best for

OEF: Fits investors seeking concentrated exposure to mega-cap stocks who can tolerate slightly higher beta than the broader large-cap market and are comfortable with lower trading liquidity relative to VOO.

VOO: Fits investors prioritizing broad large-cap U.S. equity exposure at minimal cost, with a preference for the deepest liquidity in the large-cap space and a higher yield on dividends.

Key risks to know

  • Concentration risk in OEF: Holding only 100 stocks versus 500 means OEF's performance is more sensitive to moves in a handful of mega-cap names; if Apple, Microsoft, or Nvidia stumble, OEF's returns suffer more than VOO's.
  • Expense ratio drag: Although OEF's 0.20% expense ratio is not high in absolute terms, over a 30-year horizon the 0.17 percentage point annual cost disadvantage versus VOO compounds to a meaningful underperformance headwind.
  • Overlapping holdings: Both funds' exposures are likely to overlap heavily in their largest positions (the mega-cap tier), so diversifying between them provides less protection against concentrated sector or single-name risk than it might appear.
  • Beta sensitivity: OEF's 1.05 beta versus VOO's 1.0 suggests OEF will amplify both upside and downside moves in the broader market; in sharp corrections, OEF may decline more steeply.

Bottom line

If you want the broadest large-cap exposure with the lowest cost and best liquidity, VOO's 0.03% expense ratio and $1032B in assets stand out. If you're willing to accept higher fees and concentration for a more focused mega-cap bet, OEF's S&P 100 tilt offers that trade-off. Past performance doesn't predict future results, and both funds' returns will depend on how the largest U.S. companies perform relative to smaller large-caps over your holding period.

AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.

Learn the method

The metrics behind this comparison, explained in the Academy.

How to read a fund's stats How expense ratios eat returns Correlation between two funds

Still deciding? Compare them against your own portfolio

See how each ETF fits alongside your real holdings — forecast future income, analyze overlap, and gauge risk. Start a free 7-day Dividend Vision trial and make the call with your full portfolio in view.

Start Free Open in Comparator Browse Screener