IWB vs VOO: fund overlap

ETF comparisons  /  IWB vs VOO

US equity comparison · IWB 2026-10-29 · VOO 2026-06-30

IWB vs VOO

iShares Russell 1000 ETF compared with VANGUARD 500 INDEX FUND

These funds provide similar company exposure.IWB has 462 companies outside the overlap; VOO has 28.

Do IWB and VOO overlap?

IWB and VOO overlap by 85.8% by weight, across 477 shared companies.

IWBUS equity

iShares Russell 1000 ETF

1,029holdings
0.15%annual fee
USmarket
Valuation892 companies covered
26.4×P / E96% by weight
5.15×P / B85% by weight
3.8%Earnings yield
IWB holdings and fund profile
VOOUS equity

VANGUARD 500 INDEX FUND

520holdings
0.03%annual fee
USmarket
Valuation494 companies covered
26.0×P / E97% by weight
5.39×P / B85% by weight
3.9%Earnings yield
VOO holdings and fund profile

Price development

Both lines rebased to 0% over their shared dates

Largest shared positions

477 companies held in both funds

IWB weight VOO weight
Shared companyIWB VOO
NVIDIA CORP NVDA
7.00%
7.51%
Apple Inc AAPL
7.09%
6.58%
Microsoft Corp MSFT
5.54%
4.29%
ALPHABET INC GOOGL 2 share classes
4.22%
5.83%
↳ ALPHABET INC-CL A GOOGL2.33%3.25%
↳ ALPHABET INC-CL C GOOG1.89%2.59%
AMAZON.COM INC AMZN
3.33%
3.61%
BROADCOM INC AVGO
2.26%
2.77%
META PLATFORMS INC-CLASS A META
1.93%
1.92%
TESLA INC TSLA
1.66%
1.83%
Micron Technology Inc MU
1.48%
2.02%
ELI LILLY & CO LLY
1.54%
1.47%
BERKSHIRE HATHAWAY INC. BRK/B
1.42%
1.42%
ADVANCED MICRO DEVICES AMD
1.30%
1.47%
JPMorgan Chase & Co JPM
1.29%
1.25%
JOHNSON & JOHNSON JNJ
0.93%
0.95%
Visa Inc V
0.98%
0.86%
WALMART INC. WMT
0.75%
0.77%
AbbVie Inc ABBV
0.72%
0.69%
Mastercard Inc MA
0.72%
0.64%
Costco Wholesale Corp COST
0.62%
0.64%
CISCO SYSTEMS, INC. CSCO
0.60%
0.72%
Intel Corp INTC
0.59%
1.02%
THE PROCTER & GAMBLE COMPANY PG
0.53%
0.53%
UnitedHealth Group Inc UNH
0.52%
0.58%
Merck & Co Inc MRK
0.51%
0.49%
THE COCA-COLA COMPANY KO
0.51%
0.49%

IWB and VOO questions

Based on the holdings compared above

How much do IWB and VOO overlap?

IWB and VOO overlap by 85.8% by weight, across 477 shared companies.

Which companies do IWB and VOO both hold?

The largest companies held in both funds are NVIDIA CORP, Apple Inc, Microsoft Corp, ALPHABET INC, AMAZON.COM INC.

Can I hold both IWB and VOO?

Holding both means 85.8% of that part of your portfolio is the same companies counted twice. That can suit you or not depending on your goals; this tool reports the overlap rather than giving advice.

Is IWB or VOO cheaper?

IWB has a 0.15% expense ratio and VOO has 0.03%.

How do IWB and VOO compare on valuation?

IWB has a weighted P/E of 26.4 and VOO has a weighted P/E of 26.0.

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