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ETF comparison

IVOO vs VTI

US Mid Cap vs US Total Market.

Vanguard S&P Mid-Cap 400 Index Fund ETF Shares · Vanguard Morningstar Total Stock Market ETF

Holdings overlap

Weighted by ISIN/CUSIP
5.0 %

397 positions appear in both funds. Buying equal dollars of IVOO and VTI would leave roughly 5.0% of each dollar exposed to the same underlying securities.

IVOO unmatched 94.8% Shared 5.0% VTI unmatched 94.8%

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 IVOO only
3 positions
Shared
397 positions
In VTI only
3,107 positions

Side by side

IVOO

Vanguard S&P Mid-Cap 400 Index Fund ETF Shares

Vanguard · US Mid Cap

92 composite / 100
Expense ratio
0.070%
Net assets
$5.81B
whole fund, 2 share classes
TTM yield
1.19%
Top-10 conc.
7.8%
VTI

Vanguard Morningstar Total Stock Market ETF

Vanguard · US Total Market

92 composite / 100
Expense ratio
0.030%
Net assets
$1.82T
whole fund, 6 share classes
TTM yield
1.07%
Top-10 conc.
32.0%

Sub-score comparison

93
Cost
97
88
Tax efficiency
88
90
Liquidity
100
100
Concentration
69
—
Tracking quality
—
IVOO sub-score VTI

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

Cost difference

VTI is 4 bps cheaper than IVOO. On a $100,000 position that's about $40/yr more in fees for IVOO.

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 IVOO vs VTI.

Top shared holdings

397 shared in total
# Holding In IVOO In VTI Overlap
1 Twilio Inc 1.00% 0.04% 0.04%
2 MKS Instruments Inc 0.49% 0.04% 0.04%
3 Carpenter Technology Corp 0.66% 0.04% 0.04%
4 Curtiss-Wright Corp 0.60% 0.04% 0.04%
5 Entegris Inc 0.58% 0.04% 0.04%
6 nVent Electric PLC 0.68% 0.04% 0.04%
7 ATI Inc 0.78% 0.04% 0.04%
8 TechnipFMC PLC 0.87% 0.04% 0.04%
9 MasTec Inc 0.41% 0.04% 0.04%
10 MACOM Technology Solutions Holdings Inc 0.49% 0.04% 0.04%
11 Woodward Inc 0.57% 0.04% 0.04%
12 Illumina Inc 0.91% 0.03% 0.03%

Only in IVOO

3 total
  • SharkNinja Inc 0.38%
  • Autoliv Inc 0.23%
  • LivaNova PLC 0.12%

Only in VTI

3,107 total
  • NVIDIA Corp 6.36%
  • Apple Inc 5.87%
  • Microsoft Corp 3.83%
  • Amazon.com Inc 3.19%
  • Alphabet Inc 2.90%
  • Broadcom Inc 2.47%
  • Alphabet Inc 2.28%
  • Micron Technology Inc 1.80%
  • Meta Platforms Inc 1.71%
  • Tesla Inc 1.64%

Percentages are holdings overlap with the named fund.

Open IVOO or VTI 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.