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ETF comparison

IWF vs VO

US Large Cap Growth vs US Mid Cap.

iShares Russell 1000 Growth ETF · Vanguard Morningstar Mid-Cap ETF

Holdings overlap

Weighted by ISIN/CUSIP
10.2 %

103 positions appear in both funds. Buying equal dollars of IWF and VO would leave roughly 10.2% of each dollar exposed to the same underlying securities.

IWF unmatched 89.7% Shared 10.2% VO unmatched 89.5%

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 IWF only
265 positions
Shared
103 positions
In VO only
179 positions

Side by side

IWF

iShares Russell 1000 Growth ETF

iShares · US Large Cap Growth

81 composite / 100
Expense ratio
0.18%
Net assets
$127.74B
TTM yield
0.36%
Top-10 conc.
54.3%
VO

Vanguard Morningstar Mid-Cap ETF

Vanguard · US Mid Cap

96 composite / 100
Expense ratio
0.030%
Net assets
$216.43B
whole fund, 5 share classes
TTM yield
1.00%
Top-10 conc.
9.5%

Sub-score comparison

82
Cost
97
90
Tax efficiency
88
100
Liquidity
100
37
Concentration
100
—
Tracking quality
—
IWF sub-score VO

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

Cost difference

VO is 15 bps cheaper than IWF. On a $100,000 position that's about $150/yr more in fees for IWF.

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 IWF vs VO.

Top shared holdings

103 shared in total
# Holding In IWF In VO Overlap
1 WESTERN DIGITAL CORPORATION 0.64% 1.06% 0.64%
2 VERTIV HOLDINGS CO 0.38% 1.22% 0.38%
3 QUANTA SERVICES, INC. 0.32% 1.04% 0.32%
4 HOWMET AEROSPACE INC. 0.32% 1.04% 0.32%
5 FORTINET, INC. 0.28% 0.46% 0.28%
6 DATADOG, INC. 0.25% 0.83% 0.25%
7 SNOWFLAKE INC. 0.25% 0.41% 0.25%
8 BLOOM ENERGY CORPORATION 0.24% 0.79% 0.24%
9 CLOUDFLARE, INC. 0.23% 0.76% 0.23%
10 TERADYNE, INC. 0.22% 0.73% 0.22%
11 Astera Labs, Inc 0.22% 0.36% 0.22%
12 HILTON WORLDWIDE HOLDINGS INC. 0.22% 0.36% 0.22%

Only in IWF

265 total
  • NVIDIA CORPORATION 13.83%
  • APPLE INC. 6.72%
  • ALPHABET INC. 6.17%
  • BROADCOM INC. 5.21%
  • ALPHABET INC. 4.98%
  • MICROSOFT CORPORATION 4.11%
  • MICRON TECHNOLOGY, INC. 3.86%
  • TESLA, INC. 3.64%
  • META PLATFORMS, INC. 3.00%
  • ELI LILLY AND COMPANY 2.84%

Only in VO

179 total
  • Seagate Technology Holdings PLC 1.05%
  • CRH PLC 0.69%
  • SLB Ltd 0.67%
  • General Motors Co 0.67%
  • Warner Bros Discovery Inc 0.61%
  • PACCAR Inc 0.61%
  • Digital Realty Trust Inc 0.61%
  • Allstate Corp/The 0.59%
  • Sempra 0.59%
  • Dominion Energy Inc 0.58%

Percentages are holdings overlap with the named fund.

Open IWF or VO 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.