ETF comparison
IWN vs VOO
US Small Cap vs US Large Cap.
Holdings overlap
0 positions appear in both funds. Buying equal dollars of IWN 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 21 bps cheaper than IWN. On a $100,000 position that's about $210/yr more in fees for IWN.
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 IWN vs VOO.
Top shared holdings
0 shared in totalNo shared holdings between these funds.
Only in IWN
1,422 total- Viasat, Inc. 0.74%
- Cytokinetics, Inc. 0.65%
- UMB Financial Corp. 0.62%
- CareTrust REIT, Inc. 0.59%
- Terex Corp. 0.54%
- Old National Bancorp 0.52%
- JBT Marel Corp. 0.50%
- Lumen Technologies, Inc. 0.48%
- Terreno Realty Corp. 0.45%
- Taylor Morrison Home Corp. 0.44%
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 IWN
- IWN vs VTV · Vanguard Morningstar Value ETF 0.0%
- IWN vs VUG · Vanguard Morningstar Growth ETF 0.0%
- IWN vs IWM · iShares Russell 2000 ETF 53.6%
- IWN vs VTWO · Vanguard Russell 2000 Index Fund ETF Shares 45.4%
- IWN vs DFSV · DFA U.S. Small Cap Value Portfolio – ETF Class Shares 45.2%
- IWN vs SPSM · State Street SPDR Portfolio S&P 600 Small Cap ETF 43.5%
More comparisons with VOO
- VOO vs IWO · iShares Russell 2000 Growth ETF 0.0%
- VOO vs MDY · State Street SPDR S&P MIDCAP 400 ETF Trust 0.0%
- VOO vs SCHY · Schwab International Dividend Equity ETF 0.0%
- VOO vs SPMD · State Street SPDR Portfolio S&P 400 Mid Cap ETF 0.0%
- VOO vs TLT · iShares 20+ Year Treasury Bond ETF 0.0%
- VOO vs VIGI · Vanguard International Dividend Appreciation Index Fund ETF Shares 0.0%
Percentages are holdings overlap with the named fund.
Open IWN 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.