ETF comparison
IWV vs VO
US Total Market vs US Mid Cap.
Holdings overlap
276 positions appear in both funds. Buying equal dollars of IWV and VO would leave roughly 15.5% 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
VO is 17 bps cheaper than IWV. On a $100,000 position that's about $170/yr more in fees for IWV.
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 IWV vs VO.
Top shared holdings
276 shared in total| # | Holding | In IWV | In VO | Overlap |
|---|---|---|---|---|
| 1 | WESTERN DIGITAL CORP | 0.30% | 1.06% | 0.30% |
| 2 | VERTIV HOLDINGS COMPANY | 0.18% | 1.22% | 0.18% |
| 3 | HOWMET AEROSPACE INC | 0.15% | 1.04% | 0.15% |
| 4 | QUANTA SERVICES INC | 0.15% | 1.04% | 0.15% |
| 5 | NEWMONT CORP | 0.14% | 0.48% | 0.14% |
| 6 | CUMMINS INC | 0.14% | 0.95% | 0.14% |
| 7 | FORTINET INC | 0.13% | 0.46% | 0.13% |
| 8 | WILLIAMS COMPANIES INC (THE) | 0.13% | 0.44% | 0.13% |
| 9 | JOHNSON CONTROLS INTERNATIONAL PLC | 0.12% | 0.43% | 0.12% |
| 10 | DATADOG INC | 0.12% | 0.83% | 0.12% |
| 11 | SNOWFLAKE INC | 0.12% | 0.41% | 0.12% |
| 12 | BLOOM ENERGY CORP | 0.11% | 0.79% | 0.11% |
Only in IWV
2,314 total- NVIDIA CORP 6.43%
- APPLE INC 5.76%
- MICROSOFT CORP 3.82%
- AMAZON.COM INC 3.19%
- ALPHABET INC 2.87%
- BROADCOM INC 2.42%
- ALPHABET INC 2.31%
- MICRON TECHNOLOGY INC 1.79%
- META PLATFORMS INC 1.71%
- TESLA INC 1.69%
Only in VO
6 total- Seagate Technology Holdings PLC 1.05%
- TE Connectivity PLC 0.57%
- Waste Connections Inc 0.41%
- Cerebras Systems Inc 0.06%
- Symbotic Inc 0.01%
- Venture Global Inc 0.01%
Related comparisons
More comparisons with IWV
- IWV vs VB · Vanguard Morningstar Small-Cap ETF 11.8%
- IWV vs SCHD · Schwab U.S. Dividend Equity ETF 7.0%
- IWV vs IJH · iShares Core S&P Mid-Cap ETF 5.0%
- IWV vs IWM · iShares Russell 2000 ETF 4.3%
- IWV vs IJR · iShares Core S&P Small-Cap ETF 2.5%
- IWV vs ITOT · iShares Core S&P Total U.S. Stock Market ETF 98.1%
More comparisons with VO
- VO vs DFUS · Dimensional U.S. Equity Market ETF 15.4%
- VO vs VTHR · Vanguard Russell 3000 Index Fund ETF Shares 15.2%
- VO vs SPTM · State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF 15.1%
- VO vs OMFL · Invesco Russell 1000 Dynamic Multifactor ETF 14.9%
- VO vs JAVA · JPMorgan Active Value ETF 14.1%
- VO vs LRGF · iShares U.S. Equity Factor ETF 14.0%
Percentages are holdings overlap with the named fund.
Open IWV or VO 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.