Which returned more over the last year, VO or VOO?

In the year to Oct 28, 2026, with distributions reinvested, VO returned +12.8% and VOO +13.7%.

Which is cheaper, VO or VOO?

Neither: VO and VOO both charge 0.03% a year. Fees come from each fund's prospectus.

How much do VO and VOO overlap with the S&P 500?

By their latest filed holdings, 91% of VO and 100% of VOO by weight is stocks the S&P 500 already holds.

Data as of Oct 28, 2026.

Across categories

VO vs VOO: Differences, Returns & Fees

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Over the year to Oct 28, 2026, VO returned +12.8% to VOO's +13.7%; 15% of their weight is in the same names.

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Net assets on Sep 30, 2026: $103.4bn for Vanguard Morningstar Mid-Cap ETF and $1.0tn for Vanguard S&P 500 ETF.

VO on its own →VOO on its own →

At a glance

+12.8%

VO total return, 1 year

+13.7%

VOO total return, 1 year

0.03%

VO expense ratio

0.03%

VOO expense ratio

Pair scorecard

Both cost 0.03% a year; their one-year returns differ by 0.9 points; VOO is 9.7 times larger.

Points (pts) are percentage points.

VO vs VOO: Differences, Returns & Fees
Measure	VO	VOO
Return
Measure	VO	VOO
Total return, 1 year	+12.8%	+13.7%
Drawdown
Measure	VO	VOO
Below its high	3.1%, high on Aug 14, 2026
Benchmark
Measure	VO	VOO
What it tracks	Morningstar US Mid Cap Index (formerly CRSP US Mid Cap Index)	S&P 500 Index
Cost and size
Measure	VO	VOO
Expense ratio	0.03%	0.03%
Net assets, as of Sep 30, 2026	$103.4bn	$1.0tn
Holdings
Measure	VO	VOO
Holdings in common	15%
Top ten holdings, share of the fund	9.7%	39.1%

Holdings in common uses holdings dated Sep 30, 2026. Method

Risk and return

Sep 17, 2010 to Oct 23, 2026 · 840 weekly returns

VO VOO

Return

Total return edge VOO +536.6% +804.0%

Annualized edge VOO +12.1% +14.6%

Price return edge VOO +399.1% +575.9%

Risk

Volatility edge VOO (slight) 17.7% 15.9%

Max drawdown edge VOO −37.4% −31.8%

Risk-adjusted

Sharpe edge VOO 0.65 0.84

Sortino edge VOO 0.93 1.22

Calmar edge VOO 0.32 0.46

Reading

VOO returned more: +804.0% to +536.6%. VOO swung slightly less: 15.9% to 17.7%. VOO fell less at its worst: −31.8% to −37.4%.

Full scorecard

9 measures, with how each is measured Open ↓

Risk and return: VO vs VOO: Differences, Returns & Fees
Measure	VO	VOO	Edge	How it is measured
Return
Total return	+536.6%	+804.0%	VOO	Price change plus distributions, reinvested.
Annualized	+12.1%	+14.6%	VOO	Total return as a yearly rate.
Price return	+399.1%	+575.9%	VOO	Price change alone, distributions left out.
Risk
Volatility	17.7%	15.9%	VOO (slight)	Spread of weekly returns, annualized. Lower is steadier.
Downside deviation	12.3%	10.9%	VOO	Like volatility, counting only weeks below the Treasury bill rate.
Max drawdown	−37.4%	−31.8%	VOO	Deepest fall from a high to the low after it.
Risk-adjusted
Sharpe	0.65	0.84	VOO	Return above Treasury bills per unit of volatility.
Sortino	0.93	1.22	VOO	Return above Treasury bills per unit of downside deviation.
Calmar	0.32	0.46	VOO	Annualized return divided by the max drawdown.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 840 weekly returns. Cash rate: the 13-week Treasury bill.

What they share

15%

By the books each fund has filed, VO and VOO hold 15% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026.

50%

0 half 100%

half

15% in common

Positions both hold · largest shared weight first VO VOO

Newmont Corp 0.60% 0.18%

Valero Energy Corp 1.10% 0.17%

Marathon Petroleum Corp 1.10% 0.17%

Fortinet Inc 0.55% 0.17%

Phillips 66 1.01% 0.15%

Quanta Services Inc 0.95% 0.15%

Vertiv Holdings Co 0.92% 0.14%

Datadog Inc 0.91% 0.14%

Howmet Aerospace Inc 0.89% 0.14%

Johnson Controls International plc 0.45% 0.14%

Robinhood Markets Inc 0.88% 0.14%

Lumentum Holdings Inc 0.86% 0.13%

Only in one fund ↓

Only in VO

Cloudflare Inc 1.11%

Snowflake Inc 0.55%

Strategy Inc 0.55%

Astera Labs Inc 0.55%

Cheniere Energy Inc 0.55%

Rocket Lab Corp 0.41%

Waste Connections Inc 0.38%

CoreWeave Inc 0.34%

Only in VOO

NVIDIA Corp 8.40%

Apple Inc 7.39%

Microsoft Corp 5.79%

Amazon.com Inc 3.72%

Alphabet Inc 3.07%

Broadcom Inc 2.54%

Alphabet Inc 2.46%

Meta Platforms Inc 2.43%

Check overlap with more funds →

Side by side

VO Vanguard Morningstar Mid-Cap ETF VOO Vanguard S&P 500 ETF

Where it sits Stock ETF Stock ETF

Issuer Vanguard Vanguard

What it is Tracks an index of Mid-Cap Tracks the S&P 500

Total return, 1 year +12.8% +13.7%

Its benchmark over the same days not measured +13.7% (IVV)

Gap to its benchmark not measured 0.0 pts vs IVV

Expense ratio 0.03% 0.03%

Already in the S&P 500 91.1% 99.7%

Holdings 273 507

Net assets, as of Sep 30, 2026 $103.4bn $1.0tn

VO and VOO on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

Client brief · page 1 of 2 Report BR-1215CC4205

VO and VOO do different jobs. What does each one do in a portfolio?

What each follows. VO follows Morningstar US Mid Cap Index (formerly CRSP US Mid Cap Index) and VOO follows S&P 500 Index.
Holdings in common. 15% of the weight is in the same securities (holdings dated Sep 30, 2026).
Size. VO has $103.4bn in net assets and VOO $1.0tn (net assets, as of Sep 30, 2026); VOO is 9.7 times larger.

Data as of Oct 28, 2026.

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About each fund

VO tracks an index of Mid-Cap. Over the year to Oct 28, 2026 it returned +12.8% with distributions reinvested. The prospectus expense ratio is 0.03% a year. By its holdings published by its issuer as of Sep 30, 2026, 91% of the fund by weight is stocks the S&P 500 also holds, across 273 positions, with the top ten at 9.7%. It sat 3.1% below its high of Aug 14, 2026 on Oct 28, 2026.

VOO

VOO tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.7% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. By its holdings published by its issuer as of Sep 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 507 positions, with the top ten at 39.1%.

Questions people ask

Which returned more over the last year, VO or VOO?: In the year to Oct 28, 2026, with distributions reinvested, VO returned +12.8% and VOO +13.7%.
Which is cheaper, VO or VOO?: Neither: VO and VOO both charge 0.03% a year. Fees come from each fund's prospectus.
How much do VO and VOO overlap with the S&P 500?: By their latest filed holdings, 91% of VO and 100% of VOO by weight is stocks the S&P 500 already holds.

Other comparisons

IVV vs VO SPY vs VO VO vs VTI DIA vs VO IJH vs VOO FTGS vs VOO VOO vs VXF MDY vs VOO

Where to next

VO on its own →VOO on its own →Hold both: look the portfolio through →Rankings →VO dividend history →VO holdings →VOO dividend history →VOO holdings →Standards and sources →

Sources and dates

VO and VOO filings on SEC EDGAR ↗

VO and VOO prospectus with the expense ratio (SEC) ↗

Vanguard page for VO ↗

Vanguard page for VOO ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, VO against VOO, data as of Oct 28, 2026. https://etfiq.com/compare/any/vo-vs-voo

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.