ETF comparison
IJR vs IVOO
US Small Cap vs US Mid Cap.
iShares Core S&P Small-Cap ETF · Vanguard S&P Mid-Cap 400 Index Fund ETF Shares
Holdings overlap
3 positions appear in both funds. Buying equal dollars of IJR and IVOO would leave roughly 0.1% 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
IJR is 1 bps cheaper than IVOO. On a $100,000 position that's about $10/yr more in fees for IVOO.
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 IJR vs IVOO.
Top shared holdings
3 shared in total| # | Holding | In IJR | In IVOO | Overlap |
|---|---|---|---|---|
| 1 | CONCENTRIX CORP | 0.05% | 0.04% | 0.04% |
| 2 | BLACKBAUD INC | 0.06% | 0.03% | 0.03% |
| 3 | COTY INC | 0.04% | 0.02% | 0.02% |
Only in IJR
600 total- FORMFACTOR INC 0.67%
- VIASAT INC 0.66%
- MOLINA HEALTHCARE INC 0.64%
- ARGAN INC 0.60%
- BRIGHTSPRING HEALTH SERVICES INC 0.60%
- ELEMENT SOLUTIONS INC 0.59%
- MAXLINEAR INC 0.58%
- KRYSTAL BIOTECH INC 0.53%
- ESCO TECHNOLOGIES INC 0.49%
- MATCH GROUP INC 0.48%
Only in IVOO
397 total- Flex Ltd 1.58%
- Twilio Inc 0.82%
- TechnipFMC PLC 0.79%
- Curtiss-Wright Corp 0.79%
- nVent Electric PLC 0.77%
- Sterling Infrastructure Inc 0.75%
- XPO Inc 0.72%
- Everpure Inc 0.71%
- Illumina Inc 0.71%
- United Therapeutics Corp 0.68%
Related comparisons
More comparisons with IJR
- IJR vs VOOV · Vanguard S&P 500 Value Index Fund ETF Shares 0.1%
- IJR vs DYNF · iShares U.S. Equity Factor Rotation Active ETF 0.0%
- IJR vs SCHG · Schwab U.S. Large-Cap Growth ETF 0.0%
- IJR vs FDVV · Fidelity High Dividend ETF 0.0%
- IJR vs DFLV · Dimensional US Large Cap Value ETF 0.0%
- IJR vs VOO · Vanguard S&P 500 ETF 0.0%
More comparisons with IVOO
- IVOO vs QQQ · Invesco QQQ Trust 0.0%
- IVOO vs VTV · Vanguard Morningstar Value ETF 0.0%
- IVOO vs SPMD · State Street SPDR Portfolio S&P 400 Mid Cap ETF 93.8%
- IVOO vs IJH · iShares Core S&P Mid-Cap ETF 93.8%
- IVOO vs MDY · State Street SPDR S&P MIDCAP 400 ETF Trust 87.1%
- IVOO vs IJK · iShares S&P Mid-Cap 400 Growth ETF 63.3%
Percentages are holdings overlap with the named fund.
Open IJR or IVOO 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.