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ETF comparison

IWV vs VOO

US Total Market vs US Large Cap.

iShares Russell 3000 ETF · Vanguard S&P 500 ETF

Holdings overlap

Weighted by ISIN/CUSIP
87.8 %

499 positions appear in both funds. Buying equal dollars of IWV and VOO would leave roughly 87.8% of each dollar exposed to the same underlying securities.

IWV unmatched 12.1% Shared 87.8% VOO unmatched 12.0%

Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.

In IWV only
2,091 positions
Shared
499 positions
In VOO only
5 positions

Side by side

IWV

iShares Russell 3000 ETF

iShares · US Total Market

85 composite / 100
Expense ratio
0.20%
Net assets
$20.28B
TTM yield
0.88%
Top-10 conc.
32.0%
VOO

Vanguard S&P 500 ETF

Vanguard · US Large Cap

91 composite / 100
Expense ratio
0.030%
Net assets
$1.73T
whole fund, 4 share classes
TTM yield
1.06%
Top-10 conc.
36.4%

Sub-score comparison

80
Cost
97
89
Tax efficiency
88
100
Liquidity
100
69
Concentration
62
—
Tracking quality
—
IWV sub-score VOO

Tracking quality isn't part of the composite — see what we don't score for why.

Cost difference

VOO is 17 bps cheaper than IWV. On a $100,000 position that's about $170/yr more in fees for IWV.

Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with IWV vs VOO.

Top shared holdings

499 shared in total
# Holding In IWV In VOO Overlap
1 NVIDIA CORP 6.43% 7.51% 6.43%
2 APPLE INC 5.76% 6.59% 5.76%
3 MICROSOFT CORP 3.82% 4.30% 3.82%
4 AMAZON.COM INC 3.19% 3.62% 3.19%
5 ALPHABET INC 2.87% 3.25% 2.87%
6 BROADCOM INC 2.42% 2.77% 2.42%
7 ALPHABET INC 2.31% 2.59% 2.31%
8 MICRON TECHNOLOGY INC 1.79% 2.02% 1.79%
9 META PLATFORMS INC 1.71% 1.92% 1.71%
10 TESLA INC 1.69% 1.84% 1.69%
11 ELI LILLY & COMPANY 1.32% 1.47% 1.32%
12 ADVANCED MICRO DEVICES INC 1.30% 1.47% 1.30%

Only in IWV

2,091 total
  • SPACE EXPLORATION TECHNOLOGIES CORP 0.12%
  • SNOWFLAKE INC 0.12%
  • BLOOM ENERGY CORP 0.11%
  • CLOUDFLARE INC 0.11%
  • ASTERA LABS INC 0.10%
  • SPOTIFY TECHNOLOGY SA 0.10%
  • ROCKET LAB CORP 0.08%
  • CHENIERE ENERGY INC 0.07%
  • NU HOLDINGS LTD 0.06%
  • FERGUSON ENTERPRISES INC 0.06%

Only in VOO

5 total
  • Seagate Technology Holdings PLC 0.34%
  • NXP Semiconductors NV 0.11%
  • TE Connectivity PLC 0.09%
  • Erie Indemnity Co 0.01%
  • Paramount Skydance Corp 0.00%

Percentages are holdings overlap with the named fund.

Open IWV or VOO at a brokerage

Both funds trade commission-free at major US brokerages.

Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.

Holdings overlap is the sum of min(weight_a, weight_b) over positions matched on ISIN (CUSIP fallback). Methodology: see /methodology/.

Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.