IUSG vs VUG: Holdings Overlap
IUSGiShares Core S&P U.S. Growth ETF
iShares · 385 holdings · $33.6B · as of 2026-03-31
Vanguard · 153 holdings · $229.6B · as of 2026-03-31
How similar are IUSG and VUG?
iShares Core S&P U.S. Growth ETF (IUSG, by iShares) holds 385 positions; Vanguard Growth Index Fund (VUG, by Vanguard) holds 153. They have 88 holdings in common, and by portfolio weight the two funds are 75.0% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 75.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 88IUSG holds 385 · VUG holds 153
- Weight in Shared Holdings
- IUSG 77%·VUG 90%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 IUSG
297 of 385 positions (23.0% of the fund) are not held by VUG. Showing the top 30 by weight.
Only in VUG
65 of 153 positions (9.9% of the fund) are not held by IUSG. Showing the top 30 by weight.
Sector Breakdown
| Sector | IUSG | VUG |
|---|---|---|
| Information Technology | 46.0% | 51.9% |
| Communication Services | 16.0% | 16.5% |
| Consumer Discretionary | 9.4% | 12.5% |
| Financials | 9.6% | 4.7% |
| Industrials | 8.1% | 5.2% |
| Other Sectors | 10.6% | 9.2% |
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 |
|---|---|---|---|---|---|---|---|
| IUSG | +4.3% | +15.9% | +25.6% | +26.2% | +13.9% | +17.5% | 0.48% |
| VUG | +4.1% | +10.2% | +18.2% | +24.1% | +13.0% | +17.8% | 0.38% |
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 IUSG vs VUG →
Shared Holdings(88)
The top 10 shared positions account for 73% of the overlap, led by NVDA, MSFT and AAPL.
 NVDANVIDIA Corp. COM | 13.84% | 13.31% | 13.31% |
|---|---|---|---|
 MSFTMicrosoft Corp. COM | 8.97% | 9.09% | 8.97% |
 AAPLApple Inc. COM | 6.08% | 12.32% | 6.08% |
 GOOGLAlphabet Inc. CAP STK CL A | 5.47% | 5.54% | 5.47% |
 AVGOBroadcom Inc COM | 4.79% | 4.40% | 4.40% |
 GOOGAlphabet Inc. CAP STK CL C | 4.38% | 4.39% | 4.38% |
 METAMeta Platforms, Inc., Class A | 4.09% | 4.15% | 4.09% |
 AMZNAmazon.com, Inc. COM | 3.52% | 4.59% | 3.52% |
 LLYEli Lilly & Co. COM | 2.38% | 2.60% | 2.38% |
 TSLATesla Inc COM | 2.12% | 3.47% | 2.12% |
 NFLXNetflix, Inc. COM | 1.33% | 1.36% | 1.33% |
 AMDAdvanced Micro Devices Inc. COM | 1.08% | 1.11% | 1.08% |
 PLTRPalantir Technologies, Inc., Class A | 1.09% | 1.07% | 1.07% |
 VVisa, Inc., Class A | 0.91% | 1.65% | 0.91% |
 MAMasterCard Incorporated CL A | 0.89% | 1.33% | 0.89% |
 LRCXLam Research Corporation COM NEW | 0.87% | 0.90% | 0.87% |
 GEVGE Vernova Inc. COM | 0.77% | 0.80% | 0.77% |
 KLACKLA Corp. COM NEW | 0.63% | 0.66% | 0.63% |
 ISRGIntuitive Surgical Inc. COM NEW | 0.53% | 0.56% | 0.53% |
 APHAmphenol Corporation CL A | 0.51% | 0.53% | 0.51% |
 UBERUber Technologies Inc COM | 0.48% | 0.51% | 0.48% |
 GEGE Aerospace COM NEW | 0.51% | 0.48% | 0.48% |
 AMATApplied Materials Inc. COM | 0.89% | 0.47% | 0.47% |
 WELLWelltower Inc. COM | 0.45% | 0.47% | 0.45% |
 BKNGBooking Holdings Inc COM | 0.44% | 0.46% | 0.44% |
Frequently Asked Questions
How much do IUSG and VUG overlap?
IUSG and VUG overlap by 75.0% of portfolio weight. They share 88 holdings (IUSG holds 385 positions and VUG holds 153), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IUSG and VUG?
The two portfolios are 75.0% 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 IUSG and VUG?
The largest positions held by both funds are NVDA, MSFT, AAPL, GOOGL and AVGO. Together the top 10 shared positions account for 73% of the total overlap.
What does IUSG own that VUG doesn't?
297 positions (23.0% of IUSG) are unique to IUSG, led by BRK-B, JPM and MU. In the other direction, 65 positions (9.9% of VUG) are unique to VUG.