IWF vs VONG: Holdings Overlap
IWFiShares Russell 1000 Growth ETF
iShares · 387 holdings · $127.3B · as of 2026-03-31
VONGVanguard Russell 1000 Growth Index Fund
Vanguard · 387 holdings · $45.7B · as of 2026-05-31
Holdings snapshots are 61 days apart (IWF: 2026-03-31, VONG: 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 IWF and VONG?
iShares Russell 1000 Growth ETF (IWF, by iShares) holds 387 positions; Vanguard Russell 1000 Growth Index Fund (VONG, by Vanguard) holds 387. They have 385 holdings in common, and by portfolio weight the two funds are 94.3% identical. In practical terms the pair is essentially interchangeable, so holding both adds little diversification.
- Overlap by Weight
- 94.3%Sum of the smaller weight of each shared holding
- Shared Holdings
- 385IWF holds 387 · VONG holds 387
- Weight in Shared Holdings
- IWF 100%·VONG 100%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
Sector Breakdown
| Sector | IWF | VONG |
|---|---|---|
| Information Technology | 49.2% | 52.8% |
| Consumer Discretionary | 13.1% | 12.7% |
| Communication Services | 12.4% | 12.5% |
| Health Care | 8.0% | 6.9% |
| Industrials | 6.7% | 6.2% |
| Other Sectors | 10.4% | 8.8% |
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 |
|---|---|---|---|---|---|---|---|
| IWF | +2.7% | +5.5% | +13.1% | +22.0% | +12.6% | +17.8% | 0.35% |
| VONG | +2.7% | +5.6% | +13.3% | +22.2% | +12.8% | +17.9% | 0.45% |
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 IWF vs VONG →
Shared Holdings(385)
The top 10 shared positions account for 62% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 12.92% | 13.07% | 12.92% |
|---|---|---|---|
 AAPLApple Inc. COM | 11.64% | 11.95% | 11.64% |
 MSFTMicrosoft Corp. COM | 8.82% | 8.96% | 8.82% |
 AVGOBroadcom Inc COM | 4.79% | 5.77% | 4.79% |
 AMZNAmazon.com, Inc. COM | 4.66% | 5.06% | 4.66% |
 GOOGLAlphabet Inc. CAP STK CL A | 3.54% | 3.91% | 3.54% |
 TSLATesla Inc COM | 3.55% | 3.48% | 3.48% |
 METAMeta Platforms, Inc., Class A | 3.46% | 3.19% | 3.19% |
 GOOGAlphabet Inc. CAP STK CL C | 2.87% | 3.15% | 2.87% |
 LLYEli Lilly & Co. COM | 2.66% | 2.67% | 2.66% |
 VVisa, Inc., Class A | 1.84% | 1.57% | 1.57% |
 COSTCostco Wholesale Corporation COM | 1.60% | 1.28% | 1.28% |
 MAMasterCard Incorporated CL A | 1.45% | 1.20% | 1.20% |
 ABBVAbbVie Inc. COM | 1.39% | 1.16% | 1.16% |
 NFLXNetflix, Inc. COM | 1.47% | 1.10% | 1.10% |
 PLTRPalantir Technologies, Inc., Class A | 1.15% | 1.03% | 1.03% |
 GEGeneral Electric Co. | 1.06% | 1.01% | 1.01% |
 LRCXLam Research Corporation COM NEW | 0.97% | 1.20% | 0.97% |
 ORCLOracle Corp. COM | 0.89% | 1.15% | 0.89% |
 GEVGE Vernova Inc. COM | 0.85% | 0.79% | 0.79% |
 HDHome Depot, Inc. (The) | 0.90% | 0.73% | 0.73% |
 KLACKLA Corp. COM NEW | 0.70% | 0.76% | 0.70% |
 AMDAdvanced Micro Devices Inc. COM | 0.69% | 1.47% | 0.69% |
 APHAmphenol Corporation CL A | 0.56% | 0.55% | 0.55% |
 PANWPalo Alto Networks Inc COM | 0.46% | 0.68% | 0.46% |
Showing the top 250 of 385 shared holdings by overlap weight.
Frequently Asked Questions
How much do IWF and VONG overlap?
IWF and VONG overlap by 94.3% of portfolio weight. They share 385 holdings (IWF holds 387 positions and VONG holds 387), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWF and VONG?
The two portfolios are 94.3% 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 IWF and VONG?
The largest positions held by both funds are NVDA, AAPL, MSFT, AVGO and AMZN. Together the top 10 shared positions account for 62% of the total overlap.
What does IWF own that VONG doesn't?
2 positions (0.1% of IWF) are unique to IWF, led by CCL and 1JK. In the other direction, 2 positions (0.0% of VONG) are unique to VONG.