ETF comparison
VIOV vs VOO
US Small Cap vs US Large Cap.
Vanguard S&P Small-Cap 600 Value Index Fund ETF Shares · Vanguard S&P 500 ETF
Holdings overlap
0 positions appear in both funds. Buying equal dollars of VIOV and VOO would leave roughly 0.0% of each dollar exposed to the same underlying securities.
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.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
VOO is 7 bps cheaper than VIOV. On a $100,000 position that's about $70/yr more in fees for VIOV.
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 VIOV vs VOO.
Top shared holdings
0 shared in totalNo shared holdings between these funds.
Only in VIOV
460 total- Enphase Energy Inc 1.04%
- Molina Healthcare Inc 1.04%
- Eastman Chemical Co 1.01%
- Match Group Inc 0.99%
- Jackson Financial Inc 0.85%
- SM Energy Co 0.81%
- LKQ Corp 0.81%
- Paycom Software Inc 0.80%
- Vishay Intertechnology Inc 0.75%
- CarMax Inc 0.74%
Only in VOO
504 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%
Related comparisons
More comparisons with VIOV
- VIOV vs VTV · Vanguard Morningstar Value ETF 0.0%
- VIOV vs VUG · Vanguard Morningstar Growth ETF 0.0%
- VIOV vs IJS · iShares S&P Small-Cap 600 Value ETF 90.8%
- VIOV vs VIOO · Vanguard S&P Small-Cap 600 Index Fund ETF Shares 64.2%
- VIOV vs SPSM · State Street SPDR Portfolio S&P 600 Small Cap ETF 61.1%
- VIOV vs IJR · iShares Core S&P Small-Cap ETF 60.2%
More comparisons with VOO
- VOO vs VXUS · Vanguard Total International Stock Index Fund ETF Shares 0.0%
- VOO vs VYMI · Vanguard International High Dividend Yield Index Fund ETF Shares 0.0%
- VOO vs SPYM · State Street SPDR Portfolio S&P 500 ETF 99.7%
- VOO vs IVV · iShares Core S&P 500 ETF 99.6%
- VOO vs VV · Vanguard Morningstar Large-Cap ETF 96.1%
- VOO vs SPY · State Street SPDR S&P 500 ETF Trust 92.2%
Percentages are holdings overlap with the named fund.
Open VIOV 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.