Skip to main content
PlainIndex
Menu

ETF comparison

OEF vs VO

US Large Cap vs US Mid Cap.

iShares S&P 100 ETF · Vanguard Morningstar Mid-Cap ETF

Holdings overlap

Weighted by ISIN/CUSIP
0.6 %

4 positions appear in both funds. Buying equal dollars of OEF and VO would leave roughly 0.6% of each dollar exposed to the same underlying securities.

OEF unmatched 99.3% Shared 0.6% VO unmatched 99.1%

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 OEF only
98 positions
Shared
4 positions
In VO only
278 positions

Side by side

OEF

iShares S&P 100 ETF

iShares · US Large Cap

81 composite / 100
Expense ratio
0.20%
Net assets
$20.43B
TTM yield
0.86%
Top-10 conc.
50.7%
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

80
Cost
97
89
Tax efficiency
88
100
Liquidity
100
42
Concentration
100
—
Tracking quality
—
OEF sub-score VO

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

Cost difference

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

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 OEF vs VO.

Top shared holdings

4 shared in total
# Holding In OEF In VO Overlap
1 SIMON PROPERTY GROUP INC 0.16% 0.67% 0.16%
2 GENERAL MOTORS COMPANY 0.15% 0.67% 0.15%
3 FEDEX CORP 0.15% 0.33% 0.15%
4 NIKE INC 0.11% 0.24% 0.11%

Only in OEF

98 total
  • NVIDIA CORP 10.47%
  • APPLE INC 9.18%
  • MICROSOFT CORP 5.99%
  • AMAZON.COM INC 5.04%
  • ALPHABET INC 4.53%
  • BROADCOM INC 3.86%
  • ALPHABET INC 3.61%
  • MICRON TECHNOLOGY INC 2.81%
  • META PLATFORMS INC 2.67%
  • TESLA INC 2.56%

Only in VO

278 total
  • Vertiv Holdings Co 1.22%
  • Western Digital Corp 1.06%
  • Seagate Technology Holdings PLC 1.05%
  • Quanta Services Inc 1.04%
  • Howmet Aerospace Inc 1.04%
  • Cummins Inc 0.95%
  • Datadog Inc 0.83%
  • Bloom Energy Corp 0.79%
  • Constellation Energy Corp 0.78%
  • Robinhood Markets Inc 0.77%

Related comparisons

More comparisons with OEF

More comparisons with VO

Percentages are holdings overlap with the named fund.

Open OEF or VO at a brokerage

Both funds trade commission-free at major US brokerages.

Open at Fidelity

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.