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

In the year to Oct 28, 2026, with distributions reinvested, IGM returned +21.7% and VO +12.8%.

Which is cheaper, IGM 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 IGM and VO overlap with the S&P 500?

By their latest filed holdings, 92% of IGM and 91% of VO by weight is stocks the S&P 500 already holds.

Data as of Oct 28, 2026.

Across categories

IGM vs VO: Differences, Returns & Fees

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Over the year to Oct 28, 2026, IGM returned +21.7% to VO's +12.8%; 8% of their weight is in the same names.

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Net assets: $11.0bn on Oct 27, 2026 for iShares Expanded Tech Sector ETF, and $103.4bn on Sep 30, 2026 for Vanguard Morningstar Mid-Cap ETF.

IGM on its own →VO on its own →

At a glance

+21.7%

IGM total return, 1 year

+12.8%

VO total return, 1 year

0.37%

IGM expense ratio

0.03%

VO expense ratio

Pair scorecard

VO costs 0.34 points a year less; their one-year returns differ by 8.9 points; VO is 9.1 times larger.

IGM vs VO: Differences, Returns & Fees
Measure	IGM	VO
Return
Measure	IGM	VO
Total return, 1 year	+21.7%	+12.8%
Drawdown
Measure	IGM	VO
Below its high	6.2%, high on Oct 6, 2026	3.1%, high on Aug 14, 2026
Benchmark
Measure	IGM	VO
What it tracks	S&P North American Expanded Technology Sector Index	Morningstar US Mid Cap Index (formerly CRSP US Mid Cap Index)
Cost and size
Measure	IGM	VO
Expense ratio	0.37%	0.03%
Net assets, as of Sep 30, 2026	$11.4bn	$103.4bn
Holdings
Measure	IGM	VO
Holdings in common	8%
Top ten holdings, share of the fund	56.8%	9.7%

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

What they share

By the books each fund has filed, IGM and VO hold 8% 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

8% in common

Positions both hold · largest shared weight first IGM VO

SNOWFLAKE 0.53% 0.55%

FORTINET 0.52% 0.55%

CLOUDFLARE CLASS A 0.48% 1.11%

DATADOG INC CLASS A 0.43% 0.91%

HEWLETT PACKARD ENTERPRISE 0.37% 0.79%

MOTOROLA SOLUTIONS INC 0.36% 0.73%

LUMENTUM HOLDINGS 0.35% 0.86%

TE CONNECTIVITY PLC 0.30% 0.60%

MONOLITHIC POWER SYSTEMS INC 0.27% 0.62%

KEYSIGHT TECHNOLOGIES 0.26% 0.61%

AUTODESK 0.23% 0.44%

CIENA 0.23% 0.49%

Only in one fund ↓

Only in IGM

APPLE 9.36%

MICROSOFT 9.19%

NVIDIA 8.28%

BROADCOM INC 7.07%

ALPHABET CLASS A 4.57%

META PLATFORMS CLASS A 4.27%

ADVANCED MICRO DEVICES 4.16%

MICRON TECHNOLOGY 4.07%

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%

Constellation Energy Corp 0.84%

Check overlap with more funds →

Side by side

IGM iShares Expanded Tech Sector ETF VO Vanguard Morningstar Mid-Cap ETF

Where it sits Stock ETF Stock ETF

Issuer iShares Vanguard

What it is Tracks an index of Expanded Tech Sector Tracks an index of Mid-Cap

Total return, 1 year +21.7% +12.8%

Expense ratio 0.37% 0.03%

Already in the S&P 500 91.9% 91.1%

Holdings 295 273

Net assets, IGM as of Oct 27, 2026 and VO as of Sep 30, 2026 $11.0bn $103.4bn

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

Alert

About each fund

IGM

IGM tracks an index of Expanded Tech Sector. Over the year to Oct 28, 2026 it returned +21.7% with distributions reinvested. The prospectus expense ratio is 0.37% a year. By its holdings published by its issuer for Oct 27, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 295 positions, with the top ten at 56.8%. It sat 6.2% 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, IGM or VO?: In the year to Oct 28, 2026, with distributions reinvested, IGM returned +21.7% and VO +12.8%.
Which is cheaper, IGM 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 IGM and VO overlap with the S&P 500?: By their latest filed holdings, 92% of IGM and 91% of VO by weight is stocks the S&P 500 already holds.

Other comparisons

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

Where to next

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

Sources and dates

IGM filings on SEC EDGAR ↗

IGM prospectus with the expense ratio (SEC) ↗

iShares page for IGM ↗

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.

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

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