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

In the year to Oct 28, 2026, with distributions reinvested, IYW returned +23.2% and VO +12.8%.

Which is cheaper, IYW or VO?

VO is cheaper, by 0.34 percentage points a year. That is about $34 on $10,000 held for a year. Fees come from each fund's prospectus.

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

By their latest filed holdings, 94% of IYW and 91% of VO by weight is stocks the S&P 500 already holds.

Data as of Oct 28, 2026.

Across categories

IYW vs VO: Differences, Returns & Fees

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Over the year to Oct 28, 2026, IYW returned +23.2% to VO's +12.8%; 7% of their weight is in the same names.

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Net assets: $25.0bn on Oct 27, 2026 for iShares U.S. Technology ETF, and $103.4bn on Sep 30, 2026 for Vanguard Morningstar Mid-Cap ETF.

IYW on its own →VO on its own →

At a glance

+23.2%

IYW total return, 1 year

+12.8%

VO total return, 1 year

0.37%

IYW expense ratio

0.03%

VO expense ratio

Pair scorecard

VO costs 0.34 points a year less; their one-year returns differ by 10.4 points; VO is 3.9 times larger.

IYW vs VO: Differences, Returns & Fees
Measure	IYW	VO
Return
Measure	IYW	VO
Total return, 1 year	+23.2%	+12.8%
Drawdown
Measure	IYW	VO
Below its high	5.5%, high on Oct 6, 2026	3.1%, high on Aug 14, 2026
Benchmark
Measure	IYW	VO
What it tracks	Russell 1000 Technology RIC 22	Morningstar US Mid Cap Index (formerly CRSP US Mid Cap Index)
Cost and size
Measure	IYW	VO
Expense ratio	0.37%	0.03%
Net assets, as of Sep 30, 2026	$26.5bn	$103.4bn
Holdings
Measure	IYW	VO
Holdings in common	7%
Top ten holdings, share of the fund	65.1%	9.7%

Holdings in common uses holdings dated Sep 30, 2026 and Oct 27, 2026. Method

Risk and return

Feb 6, 2004 to Oct 23, 2026 · 1,185 weekly returns

IYW VO

Return

Total return edge IYW +2,204.9% +797.9%

Annualized edge IYW +14.8% +10.1%

Price return edge IYW +1,887.4% +546.9%

Risk

Volatility edge VO (slight) 21.4% 19.6%

Max drawdown edge IYW −52.3% −58.4%

Risk-adjusted

Sharpe edge IYW 0.67 0.50

Sortino edge IYW 0.98 0.71

Calmar edge IYW 0.28 0.17

Reading

IYW returned more: +2,204.9% to +797.9%. VO swung slightly less: 19.6% to 21.4%. IYW fell less at its worst: −52.3% to −58.4%.

Full scorecard

9 measures, with how each is measured Open ↓

Risk and return: IYW vs VO: Differences, Returns & Fees
Measure	IYW	VO	Edge	How it is measured
Return
Total return	+2,204.9%	+797.9%	IYW	Price change plus distributions, reinvested.
Annualized	+14.8%	+10.1%	IYW	Total return as a yearly rate.
Price return	+1,887.4%	+546.9%	IYW	Price change alone, distributions left out.
Risk
Volatility	21.4%	19.6%	VO (slight)	Spread of weekly returns, annualized. Lower is steadier.
Downside deviation	14.5%	13.8%	VO (slight)	Like volatility, counting only weeks below the Treasury bill rate.
Max drawdown	−52.3%	−58.4%	IYW	Deepest fall from a high to the low after it.
Risk-adjusted
Sharpe	0.67	0.50	IYW	Return above Treasury bills per unit of volatility.
Sortino	0.98	0.71	IYW	Return above Treasury bills per unit of downside deviation.
Calmar	0.28	0.17	IYW	Annualized return divided by the max drawdown.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 1,185 weekly returns. Cash rate: the 13-week Treasury bill.

What they share

By the books each fund has filed, IYW and VO hold 7% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.

50%

0 half 100%

half

7% in common

Positions both hold · largest shared weight first IYW VO

SNOWFLAKE 0.56% 0.55%

FORTINET 0.55% 0.55%

CLOUDFLARE CLASS A 0.52% 1.11%

DATADOG INC CLASS A 0.46% 0.91%

HEWLETT PACKARD ENTERPRISE 0.40% 0.79%

DOORDASH CLASS A 0.32% 0.70%

MONOLITHIC POWER SYSTEMS INC 0.28% 0.62%

AUTODESK 0.25% 0.44%

STRATEGY INC CLASS A 0.25% 0.55%

TERADYNE 0.25% 0.62%

ASTERA LABS 0.22% 0.55%

COHERENT 0.22% 0.56%

Only in one fund ↓

Only in IYW

NVIDIA 16.81%

APPLE 16.60%

MICROSOFT 13.07%

BROADCOM INC 3.14%

ADVANCED MICRO DEVICES 3.04%

META PLATFORMS CLASS A 3.02%

MICRON TECHNOLOGY 2.73%

ALPHABET CLASS A 2.38%

Only in VO

Valero Energy Corp 1.10%

Marathon Petroleum Corp 1.10%

Phillips 66 1.01%

Quanta Services Inc 0.95%

Vertiv Holdings Co 0.92%

Howmet Aerospace Inc 0.89%

Robinhood Markets Inc 0.88%

Lumentum Holdings Inc 0.86%

Check overlap with more funds →

Side by side

IYW iShares U.S. Technology ETF VO Vanguard Morningstar Mid-Cap ETF

Where it sits Stock ETF Stock ETF

Issuer iShares Vanguard

What it is Tracks an index of U.S. Technology Tracks an index of Mid-Cap

Total return, 1 year +23.2% +12.8%

Its benchmark over the same days +13.1% (IWB) not measured

Gap to its benchmark +10.1 pts vs IWB not measured

Expense ratio 0.37% 0.03%

Already in the S&P 500 94.3% 91.1%

Holdings 150 273

Net assets, IYW as of Oct 27, 2026 and VO as of Sep 30, 2026 $25.0bn $103.4bn

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

Client brief · page 1 of 2 Report BR-7E3F73C266

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

What each follows. IYW follows Russell 1000 Technology RIC 22 and VO follows Morningstar US Mid Cap Index (formerly CRSP US Mid Cap Index).
Holdings in common. 7% of the weight is in the same securities (holdings dated Oct 27, 2026 and Sep 30, 2026).
One-year total return. Over 1 year to Oct 28, 2026 IYW returned +23.2% and VO +12.8% with distributions reinvested, a gap of 10.4 points.

Data as of Oct 28, 2026.

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About each fund

IYW

IYW tracks an index of U.S. Technology. Over the year to Oct 28, 2026 it returned +23.2% with distributions reinvested, against +13.1% for its benchmark, the Russell 1000 Index. The prospectus expense ratio is 0.37% a year. By its holdings published by its issuer for Oct 27, 2026, 94% of the fund by weight is stocks the S&P 500 also holds, across 150 positions, with the top ten at 65.1%. It sat 5.5% below its high of Oct 6, 2026 on Oct 28, 2026.

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.

Questions people ask

Which returned more over the last year, IYW or VO?: In the year to Oct 28, 2026, with distributions reinvested, IYW returned +23.2% and VO +12.8%.
Which is cheaper, IYW or VO?: VO is cheaper, by 0.34 percentage points a year. That is about $34 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IYW and VO overlap with the S&P 500?: By their latest filed holdings, 94% of IYW and 91% of VO by weight is stocks the S&P 500 already holds.

Other comparisons

IYW vs MOAT IJH vs IYW IYW vs VXF IYW vs MDY VO vs XLK VGT vs VO FTEC vs VO IGM vs VO

Where to next

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

Sources and dates

IYW filings on SEC EDGAR ↗

IYW prospectus with the expense ratio (SEC) ↗

iShares page for IYW ↗

VO filings on SEC EDGAR ↗

VO prospectus with the expense ratio (SEC) ↗

Vanguard page for VO ↗

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

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