IJH vs IVOO: Holdings Overlap
IJHiShares Core S&P Mid-Cap ETF
iShares · 399 holdings · $126.1B · as of 2026-03-31
IVOOVanguard S&P Mid-cap 400 Index Fund
Vanguard · 400 holdings · $3.9B · as of 2026-05-31
Holdings snapshots are 61 days apart (IJH: 2026-03-31, IVOO: 2026-05-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are IJH and IVOO?
iShares Core S&P Mid-Cap ETF (IJH, by iShares) holds 399 positions; Vanguard S&P Mid-cap 400 Index Fund (IVOO, by Vanguard) holds 400. They have 397 holdings in common, and by portfolio weight the two funds are 92.1% identical. In practical terms the pair is essentially interchangeable, so holding both adds little diversification.
- Overlap by Weight
- 92.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 397IJH holds 399 · IVOO holds 400
- Weight in Shared Holdings
- IJH 99%·IVOO 99%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in IJH
2 of 399 positions (0.9% of the fund) are not held by IVOO.
Sector Breakdown
| Sector | IJH | IVOO |
|---|---|---|
| Industrials | 25.3% | 25.6% |
| Information Technology | 12.3% | 15.7% |
| Financials | 14.6% | 14.3% |
| Consumer Discretionary | 11.3% | 11.1% |
| Health Care | 8.9% | 8.7% |
| Other Sectors | 27.1% | 24.4% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IJH | +3.1% | +18.4% | +26.0% | +14.5% | +9.0% | +11.2% | 1.14% |
| IVOO | +3.1% | +18.5% | +26.0% | +14.6% | +9.0% | +11.2% | 1.14% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in IJH vs IVOO →
Shared Holdings(397)
The top 10 shared positions account for 7% of the overlap, led by FTI, CW and FLEX.
 FTITechnipFMC PLC USD1 | 0.87% | 0.79% | 0.79% |
|---|---|---|---|
 CWCurtiss-Wright Corporation | 0.78% | 0.79% | 0.78% |
 FLEXFlex Ltd. COM USD0.01 | 0.75% | 1.58% | 0.75% |
 XPOXPO Inc COM | 0.71% | 0.72% | 0.71% |
 UTHRUnited Therapeutics Corporation COM | 0.80% | 0.68% | 0.68% |
 ATIATI Inc COM | 0.62% | 0.68% | 0.62% |
 MTZMastec, Inc. COM | 0.62% | 0.66% | 0.62% |
 CRSCarpenter Technology Corporation COM | 0.61% | 0.67% | 0.61% |
 NVTNVent Electric PLC COM USD0.01 | 0.60% | 0.77% | 0.60% |
 TWLOTwilio, Inc., Class A | 0.60% | 0.82% | 0.60% |
 WWDWoodward Inc. COM | 0.67% | 0.59% | 0.59% |
 ILMNIllumina Inc COM | 0.59% | 0.71% | 0.59% |
 FNFabrinet COM USD0.01 | 0.58% | 0.67% | 0.58% |
 PEverpure, Inc., Class A | 0.58% | 0.71% | 0.58% |
 BURLBurlington Stores Inc. COM | 0.63% | 0.57% | 0.57% |
 NXTNextpower Inc. CLASS A COM | 0.56% | 0.66% | 0.56% |
 ENTGEntegris Inc COM | 0.56% | 0.60% | 0.56% |
 RBARB Global Inc COM | 0.56% | 0.56% | 0.56% |
 AAAlcoa Corporation COM | 0.54% | 0.57% | 0.54% |
 RGLDRoyal Gold, Inc. COM | 0.64% | 0.52% | 0.52% |
 RBCRBC Bearings Incorporated | 0.54% | 0.52% | 0.52% |
 USFDUS Foods Holding Corp COM | 0.63% | 0.51% | 0.51% |
 BWXTBWX Technologies Inc. COM | 0.58% | 0.51% | 0.51% |
 RSReliance Inc COM | 0.50% | 0.57% | 0.50% |
 MKSIMKS Inc. COM | 0.48% | 0.62% | 0.48% |
Showing the top 250 of 397 shared holdings by overlap weight.
Frequently Asked Questions
How much do IJH and IVOO overlap?
IJH and IVOO overlap by 92.1% of portfolio weight. They share 397 holdings (IJH holds 399 positions and IVOO holds 400), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IJH and IVOO?
The two portfolios are 92.1% identical by weight. Owning both is largely redundant: they are close to the same portfolio, so a second position mostly duplicates the first.
What are the biggest shared holdings of IJH and IVOO?
The largest positions held by both funds are FTI, CW, FLEX, XPO and UTHR. Together the top 10 shared positions account for 7% of the total overlap.
What does IJH own that IVOO doesn't?
2 positions (0.9% of IJH) are unique to IJH, led by CASY and FLO. In the other direction, 3 positions (0.8% of IVOO) are unique to IVOO.