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ETF comparison

VB vs VOO

US Small Cap vs US Large Cap.

Vanguard Morningstar Small-Cap ETF · Vanguard S&P 500 ETF

Holdings overlap

Weighted by ISIN/CUSIP
3.2 %

130 positions appear in both funds. Buying equal dollars of VB and VOO would leave roughly 3.2% of each dollar exposed to the same underlying securities.

VB unmatched 96.6% Shared 3.2% VOO unmatched 96.6%

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 VB only
1,179 positions
Shared
130 positions
In VOO only
374 positions

Side by side

VB

Vanguard Morningstar Small-Cap ETF

Vanguard · US Small Cap

96 composite / 100
Expense ratio
0.030%
Net assets
$175.77B
whole fund, 5 share classes
TTM yield
1.27%
Top-10 conc.
4.3%
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

97
Cost
97
88
Tax efficiency
88
100
Liquidity
100
100
Concentration
62
—
Tracking quality
—
VB sub-score VOO

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

Cost difference

Expense ratios are effectively identical (0.030% vs 0.030%).

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 VB vs VOO.

Top shared holdings

130 shared in total
# Holding In VB In VOO Overlap
1 Flex Ltd 0.36% 0.09% 0.09%
2 Jabil Inc 0.49% 0.06% 0.06%
3 EMCOR Group Inc 0.45% 0.06% 0.06%
4 Qnity Electronics Inc 0.21% 0.05% 0.05%
5 EQT Corp 0.20% 0.05% 0.05%
6 Steel Dynamics Inc 0.19% 0.05% 0.05%
7 NRG Energy Inc 0.37% 0.05% 0.05%
8 Centene Corp 0.19% 0.05% 0.05%
9 Tapestry Inc 0.36% 0.05% 0.05%
10 Casey's General Stores Inc 0.36% 0.05% 0.05%
11 Atmos Energy Corp 0.35% 0.04% 0.04%
12 Hubbell Inc 0.17% 0.04% 0.04%

Only in VB

1,179 total
  • Credo Technology Group Holding Ltd 0.55%
  • REVOLUTION Medicines Inc 0.46%
  • Astera Labs Inc 0.45%
  • Natera Inc 0.45%
  • Twilio Inc 0.38%
  • MKS Instruments Inc 0.37%
  • Carpenter Technology Corp 0.35%
  • Curtiss-Wright Corp 0.34%
  • FTAI Aviation Ltd 0.34%
  • Entegris Inc 0.33%

Only in VOO

374 total
  • NVIDIA Corp 7.51%
  • Apple Inc 6.59%
  • Microsoft Corp 4.30%
  • Amazon.com Inc 3.62%
  • Alphabet Inc 3.25%
  • Broadcom Inc 2.77%
  • Alphabet Inc 2.59%
  • Micron Technology Inc 2.02%
  • Meta Platforms Inc 1.92%
  • Tesla Inc 1.84%

Percentages are holdings overlap with the named fund.

Open VB 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.