IWY vs VONG: Holdings Overlap
IWYiShares Russell Top 200 Growth ETF
iShares · 110 holdings · $16.6B · 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 (IWY: 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 IWY and VONG?
iShares Russell Top 200 Growth ETF (IWY, by iShares) holds 110 positions; Vanguard Russell 1000 Growth Index Fund (VONG, by Vanguard) holds 387. They have 110 holdings in common, and by portfolio weight the two funds are 87.1% identical. In practical terms the pair is essentially interchangeable, so holding both adds little diversification.
- Overlap by Weight
- 87.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 110IWY holds 110 · VONG holds 387
- Weight in Shared Holdings
- IWY 100%·VONG 91%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 IWY
Every position in IWY is also held by VONG, so it brings nothing the other fund doesn’t already own.
Only in VONG
277 of 387 positions (9.3% of the fund) are not held by IWY. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWY | VONG |
|---|---|---|
| Information Technology | 53.1% | 52.8% |
| Communication Services | 13.0% | 12.5% |
| Consumer Discretionary | 11.3% | 12.7% |
| Health Care | 7.5% | 6.9% |
| Industrials | 5.0% | 6.2% |
| Other Sectors | 10.0% | 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 |
|---|---|---|---|---|---|---|---|
| IWY | +2.5% | +5.3% | +13.9% | +22.5% | +13.7% | +18.8% | 0.34% |
| 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 IWY vs VONG →
Shared Holdings(110)
The top 10 shared positions account for 68% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 14.62% | 13.07% | 13.07% |
|---|---|---|---|
 AAPLApple Inc. COM | 13.13% | 11.95% | 11.95% |
 MSFTMicrosoft Corp. COM | 9.91% | 8.96% | 8.96% |
 AMZNAmazon.com, Inc. COM | 4.46% | 5.06% | 4.46% |
 AVGOBroadcom Inc COM | 4.31% | 5.77% | 4.31% |
 GOOGLAlphabet Inc. CAP STK CL A | 3.93% | 3.91% | 3.91% |
 TSLATesla Inc COM | 3.52% | 3.48% | 3.48% |
 METAMeta Platforms, Inc., Class A | 3.42% | 3.19% | 3.19% |
 GOOGAlphabet Inc. CAP STK CL C | 3.20% | 3.15% | 3.15% |
 LLYEli Lilly & Co. COM | 2.88% | 2.67% | 2.67% |
 VVisa, Inc., Class A | 2.16% | 1.57% | 1.57% |
 COSTCostco Wholesale Corporation COM | 1.88% | 1.28% | 1.28% |
 MAMasterCard Incorporated CL A | 1.71% | 1.20% | 1.20% |
 ABBVAbbVie Inc. COM | 1.64% | 1.16% | 1.16% |
 LRCXLam Research Corporation COM NEW | 1.14% | 1.20% | 1.14% |
 NFLXNetflix, Inc. COM | 1.73% | 1.10% | 1.10% |
 ORCLOracle Corp. COM | 1.05% | 1.15% | 1.05% |
 PLTRPalantir Technologies, Inc., Class A | 1.36% | 1.03% | 1.03% |
 GEGE Aerospace COM NEW | 1.25% | 1.01% | 1.01% |
 AMDAdvanced Micro Devices Inc. COM | 0.81% | 1.47% | 0.81% |
 GEVGE Vernova Inc. COM | 1.00% | 0.79% | 0.79% |
 KLACKLA Corp. COM NEW | 0.82% | 0.76% | 0.76% |
 HDHome Depot, Inc. (The) | 1.06% | 0.73% | 0.73% |
 APHAmphenol Corporation CL A | 0.66% | 0.55% | 0.55% |
 PANWPalo Alto Networks Inc COM | 0.55% | 0.68% | 0.55% |
Frequently Asked Questions
How much do IWY and VONG overlap?
IWY and VONG overlap by 87.1% of portfolio weight. They share 110 holdings (IWY holds 110 positions and VONG holds 387), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWY and VONG?
The two portfolios are 87.1% 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 IWY and VONG?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and AVGO. Together the top 10 shared positions account for 68% of the total overlap.
What does IWY own that VONG doesn't?
Nothing. Every position in IWY is also held by VONG. In the other direction, 277 positions (9.3% of VONG) are unique to VONG.