IVOO vs IJJ: Holdings Overlap
IVOOVanguard S&P Mid-cap 400 Index Fund
Vanguard · 400 holdings · $3.9B · as of 2026-05-31
IJJiShares S&P Mid-Cap 400 Value ETF
iShares · 301 holdings · $9.0B · as of 2026-03-31
Holdings snapshots are 61 days apart (IVOO: 2026-05-31, IJJ: 2026-03-31). 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 IVOO and IJJ?
Vanguard S&P Mid-cap 400 Index Fund (IVOO, by Vanguard) holds 400 positions; iShares S&P Mid-Cap 400 Value ETF (IJJ, by iShares) holds 301. They have 300 holdings in common, and by portfolio weight the two funds are 61.0% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 61.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 300IVOO holds 400 · IJJ holds 301
- Weight in Shared Holdings
- IVOO 65%·IJJ 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 IVOO
100 of 400 positions (34.6% of the fund) are not held by IJJ. Showing the top 30 by weight.
Sector Breakdown
| Sector | IVOO | IJJ |
|---|---|---|
| Industrials | 25.6% | 19.0% |
| Financials | 14.3% | 22.4% |
| Information Technology | 15.7% | 7.0% |
| Consumer Discretionary | 11.1% | 12.4% |
| Health Care | 8.7% | 3.2% |
| Other Sectors | 24.4% | 35.1% |
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 |
|---|---|---|---|---|---|---|---|
| IVOO | +3.1% | +18.5% | +26.0% | +14.6% | +9.0% | +11.2% | 1.14% |
| IJJ | +3.0% | +15.1% | +23.8% | +12.8% | +9.2% | +10.5% | 1.56% |
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 IVOO vs IJJ →
Shared Holdings(300)
The top 10 shared positions account for 9% of the overlap, led by ENTG, AA and RS.
 ENTGEntegris Inc COM | 0.60% | 0.68% | 0.60% |
|---|---|---|---|
 AAAlcoa Corporation COM | 0.57% | 1.09% | 0.57% |
 RSReliance Inc COM | 0.57% | 1.01% | 0.57% |
 SNXTD SYNNEX Corporation | 0.56% | 0.81% | 0.56% |
 ILMNIllumina Inc COM | 0.71% | 0.55% | 0.55% |
 USFDUS Foods Holding Corp COM | 0.51% | 1.30% | 0.51% |
 BURLBurlington Stores Inc. COM | 0.57% | 0.50% | 0.50% |
 WCCWesco International, Inc. COM | 0.50% | 0.84% | 0.50% |
 EWBCEast West Bancorp Inc COM | 0.48% | 0.46% | 0.46% |
 NLYAnnaly Capital Management, Inc. COM NEW | 0.45% | 0.97% | 0.45% |
 WPCW. P. Carey Inc COM | 0.46% | 0.45% | 0.45% |
 OVVOvintiv Inc COM | 0.44% | 1.05% | 0.44% |
 PFGCPerformance Food Group Co. COM | 0.44% | 0.86% | 0.44% |
 DKSDick's Sporting Goods, Inc. COM | 0.43% | 0.50% | 0.43% |
 BWABorgWarner Inc. COM | 0.42% | 0.72% | 0.42% |
 PNFPPinnacle Financial Partners Inc. COM | 0.42% | 0.83% | 0.42% |
 PRPermian Resources Corporation Class A | 0.41% | 1.01% | 0.41% |
 CLHClean Harbors, Inc. COM | 0.40% | 0.45% | 0.40% |
 CSLCarlisle Companies Incorporated | 0.40% | 0.49% | 0.40% |
 ARMKAramark COM | 0.40% | 0.68% | 0.40% |
 NXTNextpower Inc. CLASS A COM | 0.66% | 0.40% | 0.40% |
 RPMRPM International Inc. COM | 0.39% | 0.48% | 0.39% |
 RRXRegal Rexnord Corporation COM | 0.38% | 0.79% | 0.38% |
 JLLJones Lang LaSalle Incorporated COM | 0.38% | 0.91% | 0.38% |
 OHIOmega Healthcare Investors, Inc. COM | 0.39% | 0.38% | 0.38% |
Showing the top 250 of 300 shared holdings by overlap weight.
Frequently Asked Questions
How much do IVOO and IJJ overlap?
IVOO and IJJ overlap by 61.0% of portfolio weight. They share 300 holdings (IVOO holds 400 positions and IJJ holds 301), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IVOO and IJJ?
The two portfolios are 61.0% identical by weight. Owning both mostly doubles down on the shared core rather than diversifying: the same large positions drive both funds.
What are the biggest shared holdings of IVOO and IJJ?
The largest positions held by both funds are ENTG, AA, RS, SNX and ILMN. Together the top 10 shared positions account for 9% of the total overlap.
What does IVOO own that IJJ doesn't?
100 positions (34.6% of IVOO) are unique to IVOO, led by FLEX, TWLO and FTI. In the other direction, 1 positions (0.1% of IJJ) are unique to IJJ.