IJR vs VUG: how much do they really overlap?
IJR (iShares Core S&P Small-Cap ETF, tracking the S&P SmallCap 600) and VUG (Vanguard Growth ETF, tracking the CRSP US Large Cap Growth) overlap by roughly 0% by weight. 0 of IJR's top 10 holdings also appear in VUG. A 50/50 blend of the two behaves like about 78 equally-weighted bets (diversification grade A). In short, the two funds hold almost none of the same securities — they are complementary, not redundant.
The same companies, in both funds
These 0 holdings appear in both IJR and VUG. The weight columns show how much of each fund each name represents.
| Holding | in IJR | in VUG |
|---|
Only in IJR
iShares Core S&P Small-Cap ETF — US small-cap. Its biggest holdings that VUG doesn’t have:
| XTSLA BLK CSH FND TREASURY SL AGENCY | 2.12% |
| CORT CORCEPT THERAPEUTICS INC | 0.63% |
| VSAT VIASAT INC | 0.59% |
| GKOS GLAUKOS CORP | 0.55% |
| MTCH MATCH GROUP INC | 0.51% |
| EAT BRINKER INTERNATIONAL INC | 0.50% |
| RHP RYMAN HOSPITALITY PROPERTIES REIT | 0.47% |
| PTGX PROTAGONIST THERAPEUTICS INC | 0.47% |
Only in VUG
Vanguard Growth ETF — US large-cap growth. Its biggest holdings that IJR doesn’t have:
| NVDA NVIDIA Corp. | 12.60% |
| AAPL Apple Inc. | 11.64% |
| MSFT Microsoft Corp. | 7.60% |
| GOOGL Alphabet Inc. Class A | 5.74% |
| GOOG Alphabet Inc. Class C | 4.52% |
| AMZN Amazon.com Inc. | 4.46% |
| AVGO Broadcom Inc. | 4.27% |
| META Facebook Inc. Class A | 3.40% |
So — essentially different. Should you hold both?
IJR and VUG hold almost none of the same securities — they are complementary, not redundant. Held together they genuinely broaden your exposure — a 50/50 blend reaches ~78 effective positions (grade A), because they hold largely different securities.
Holdings as of — IJR: Jul 30, 2026 (iShares (BlackRock)); VUG: Jun 30, 2026 (Vanguard). Refreshed monthly. Overlap is measured across each fund’s largest holdings (top 50); the diffuse long tail barely moves the math.
See this for YOUR whole portfolio, free →IJR vs VUG — FAQ
- How much do IJR and VUG overlap?
- IJR and VUG overlap by approximately 0% measured by portfolio weight — that is the share of the smaller fund's holdings (by weight) that also sit inside the other. 0 of IJR's 10 largest holdings are also held by VUG. They share 0 of their listed top holdings in total.
- Is it redundant to hold both IJR and VUG?
- Because they hold almost none of the same securities — they are complementary, not redundant, holding both is not redundant — each fund covers largely different holdings, so together they broaden your exposure. A 50/50 blend has an effective 78 positions and a A diversification grade.
- What does VUG hold that IJR doesn't?
- VUG's largest holdings that IJR doesn't hold include NVDA, AAPL, MSFT, GOOGL, GOOG. Its category is US large-cap growth, versus IJR's US small-cap.
- Which is more concentrated, IJR or VUG?
- IJR's top 10 holdings are 30% of its listed weight; VUG's are 69%. The more concentrated fund leans harder on its largest names.