ETF comparison
ITOT vs VIOO
US Total Market vs US Small Cap.
iShares Core S&P Total U.S. Stock Market ETF · Vanguard S&P Small-Cap 600 Index Fund ETF Shares
Holdings overlap
596 positions appear in both funds. Buying equal dollars of ITOT and VIOO would leave roughly 2.5% 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
ITOT is 4 bps cheaper than VIOO. On a $100,000 position that's about $40/yr more in fees for VIOO.
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 ITOT vs VIOO.
Top shared holdings
596 shared in total| # | Holding | In ITOT | In VIOO | Overlap |
|---|---|---|---|---|
| 1 | Semtech Corp. | 0.02% | 0.83% | 0.02% |
| 2 | Sanmina Corp. | 0.02% | 0.83% | 0.02% |
| 3 | FormFactor, Inc. | 0.02% | 0.57% | 0.02% |
| 4 | Viasat, Inc. | 0.02% | 0.64% | 0.02% |
| 5 | Molina Healthcare, Inc. | 0.02% | 0.53% | 0.02% |
| 6 | Argan, Inc. | 0.02% | 0.54% | 0.02% |
| 7 | Viavi Solutions, Inc. | 0.02% | 0.66% | 0.02% |
| 8 | Element Solutions, Inc. | 0.02% | 0.57% | 0.02% |
| 9 | BrightSpring Health Services, Inc. | 0.02% | 0.48% | 0.02% |
| 10 | MaxLinear, Inc. | 0.01% | 0.44% | 0.01% |
| 11 | Krystal Biotech, Inc. | 0.01% | 0.47% | 0.01% |
| 12 | ESCO Technologies, Inc. | 0.01% | 0.44% | 0.01% |
Only in ITOT
1,902 total- NVIDIA Corp. 6.63%
- Apple, Inc. 5.81%
- Microsoft Corp. 3.79%
- Amazon.com, Inc. 3.19%
- Alphabet, Inc. 2.86%
- Broadcom, Inc. 2.45%
- Alphabet, Inc. 2.29%
- Micron Technology, Inc. 1.78%
- Meta Platforms, Inc. 1.69%
- Tesla, Inc. 1.62%
Only in VIOO
7 total- Pitney Bowes Inc 0.14%
- Kennedy-Wilson Holdings Inc 0.08%
- ProAssurance Corp 0.07%
- Preferred Bank/Los Angeles CA 0.06%
- Central Pacific Financial Corp 0.05%
- Hanmi Financial Corp 0.05%
- Central Garden & Pet Co 0.02%
Related comparisons
More comparisons with ITOT
- ITOT vs PEY · Invesco High Yield Equity Dividend Achievers ETF 2.2%
- ITOT vs AVUV · Avantis US Small Cap Value ETF 1.9%
- ITOT vs IJS · iShares S&P Small-Cap 600 Value ETF 1.8%
- ITOT vs VIOV · Vanguard S&P Small-Cap 600 Value Index Fund ETF Shares 1.7%
- ITOT vs VIOG · Vanguard S&P Small-Cap 600 Growth Index Fund ETF Shares 1.7%
- ITOT vs IJT · iShares S&P Small-Cap 600 Growth ETF 1.6%
More comparisons with VIOO
- VIOO vs VTI · Vanguard Morningstar Total Stock Market ETF 2.5%
- VIOO vs SCHB · Schwab U.S. Broad Market ETF 2.3%
- VIOO vs VYM · Vanguard High Dividend Yield Index Fund ETF Shares 1.9%
- VIOO vs SCHD · Schwab U.S. Dividend Equity ETF 1.2%
- VIOO vs IJH · iShares Core S&P Mid-Cap ETF 1.1%
- VIOO vs IWD · iShares Russell 1000 Value ETF 0.7%
Percentages are holdings overlap with the named fund.
Open ITOT or VIOO 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.