Data as of Oct 28, 2026.

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IWC vs VO: Differences, Returns & Fees

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Over the year to Oct 28, 2026, IWC returned +16.5% to VO's +12.8%; 0% of their weight is in the same names.

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Net assets: $1.2bn on Oct 27, 2026 for iShares Micro-Cap ETF, and $103.4bn on Sep 30, 2026 for Vanguard Morningstar Mid-Cap ETF.

At a glance
+16.5%
IWC total return, 1 year
+12.8%
VO total return, 1 year
0.60%
IWC expense ratio
0.03%
VO expense ratio

Pair scorecard

VO costs 0.57 points a year less; their one-year returns differ by 3.7 points; VO is far larger, $103.4bn against $1.4bn.

IWC vs VO: Differences, Returns & Fees
MeasureIWCVO
Return
Total return, 1 year+16.5%+12.8%
Drawdown
Below its high9.5%, high on Aug 14, 20263.1%, high on Aug 14, 2026
Benchmark
What it tracksRussell Microcap IndexMorningstar US Mid Cap Index (formerly CRSP US Mid Cap Index)
Cost and size
Expense ratio0.60%0.03%
Net assets, as of Sep 30, 2026$1.4bn$103.4bn
Holdings
Holdings in common0%
Top ten holdings, share of the fund5.9%9.7%

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

What they share

0%

By the books each fund has filed, IWC and VO hold 0% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.

0 half 100%

half

0% in common

Positions both hold · largest shared weight first IWC VO
Only in one fund ↓
Only in IWC
CAREDX 0.88%
PENGUIN SOLUTIONS INC 0.73%
NURIX THERAPEUTICS 0.63%
SELLAS LIFE SCIENCES GROUP INC 0.60%
VIRIDIAN THERAPEUTICS ORS 0.59%
OUSTER 0.53%
INTERFACE 0.52%
STRIVE INC CLASS A 0.50%
Only in VO
Cloudflare Inc 1.11%
Valero Energy Corp 1.10%
Marathon Petroleum Corp 1.10%
Phillips 66 1.01%
Quanta Services Inc 0.95%
Vertiv Holdings Co 0.92%
Datadog Inc 0.91%
Howmet Aerospace Inc 0.89%
Check overlap with more funds →

Side by side

IWC iShares Micro-Cap ETF VO Vanguard Morningstar Mid-Cap ETF
Where it sits Stock ETF Stock ETF
What it is Tracks the Russell Microcap Tracks an index of Mid-Cap
Total return, 1 year +16.5% +12.8%
Its benchmark over the same days +13.3% (IWV) not measured
Gap to its benchmark +3.2 pts vs IWV not measured
Expense ratio 0.60% 0.03%
Already in the S&P 500 91.7% 91.1%
Holdings 1365 273
Net assets, IWC as of Oct 27, 2026 and VO as of Sep 30, 2026 $1.2bn $103.4bn

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

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About each fund
IWC

Over the year to Oct 28, 2026 it returned +16.5% with distributions reinvested, against +13.3% for its benchmark, the Russell 3000 Index.

IWC tracks the Russell Microcap. The prospectus expense ratio is 0.60% 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 1,365 positions, with the top ten at 5.9%. It sat 9.5% below its high of Aug 14, 2026 on Oct 28, 2026.

VO

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, IWC or VO?
In the year to Oct 28, 2026, with distributions reinvested, IWC returned +16.5% and VO +12.8%.
Which is cheaper, IWC or VO?
VO is cheaper, by 0.57 percentage points a year. That is about $57 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IWC and VO overlap with the S&P 500?
By their latest filed holdings, 92% of IWC and 91% of VO by weight is stocks the S&P 500 already holds.
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ETFIQ, IWC against VO, data as of Oct 28, 2026. https://etfiq.com/compare/any/iwc-vs-vo

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