IWF vs VOO: Holdings Overlap
IWFiShares Russell 1000 Growth ETF
iShares · 387 holdings · $127.3B · as of 2026-03-31
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
How similar are IWF and VOO?
iShares Russell 1000 Growth ETF (IWF, by iShares) holds 387 positions; Vanguard 500 Index Fund (VOO, by Vanguard) holds 504. They have 189 holdings in common, and by portfolio weight the two funds are 57.6% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 57.6%Sum of the smaller weight of each shared holding
- Shared Holdings
- 189IWF holds 387 · VOO holds 504
- Weight in Shared Holdings
- IWF 95%·VOO 65%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 IWF
198 of 387 positions (4.7% of the fund) are not held by VOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWF | VOO |
|---|---|---|
| Information Technology | 49.2% | 32.7% |
| Consumer Discretionary | 13.1% | 9.9% |
| Communication Services | 12.4% | 10.5% |
| Financials | 5.9% | 12.4% |
| Health Care | 8.0% | 9.5% |
| Other Sectors | 11.1% | 24.9% |
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% |
| VOO | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.03% |
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 VOO →
Shared Holdings(189)
The top 10 shared positions account for 63% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 12.92% | 7.58% | 7.58% |
|---|---|---|---|
 AAPLApple Inc. COM | 11.64% | 6.66% | 6.66% |
 MSFTMicrosoft Corp. COM | 8.82% | 4.91% | 4.91% |
 AMZNAmazon.com, Inc. COM | 4.66% | 3.64% | 3.64% |
 GOOGLAlphabet Inc. CAP STK CL A | 3.54% | 2.99% | 2.99% |
 AVGOBroadcom Inc COM | 4.79% | 2.62% | 2.62% |
 GOOGAlphabet Inc. CAP STK CL C | 2.87% | 2.40% | 2.40% |
 METAMeta Platforms, Inc., Class A | 3.46% | 2.24% | 2.24% |
 TSLATesla Inc COM | 3.55% | 1.87% | 1.87% |
 LLYEli Lilly & Co. COM | 2.66% | 1.30% | 1.30% |
 VVisa, Inc., Class A | 1.84% | 0.89% | 0.89% |
 COSTCostco Wholesale Corporation COM | 1.60% | 0.79% | 0.79% |
 MAMasterCard Incorporated CL A | 1.45% | 0.73% | 0.73% |
 NFLXNetflix, Inc. COM | 1.47% | 0.73% | 0.73% |
 ABBVAbbVie Inc. COM | 1.39% | 0.69% | 0.69% |
 PLTRPalantir Technologies, Inc., Class A | 1.15% | 0.60% | 0.60% |
 AMDAdvanced Micro Devices Inc. COM | 0.69% | 0.59% | 0.59% |
 HDHome Depot, Inc. (The) | 0.90% | 0.59% | 0.59% |
 GEGeneral Electric Co. | 1.06% | 0.53% | 0.53% |
 KOCoca-Cola Co (The) COM | 0.52% | 0.53% | 0.52% |
 LRCXLam Research Corporation COM NEW | 0.97% | 0.48% | 0.48% |
 ORCLOracle Corp. COM | 0.89% | 0.45% | 0.45% |
 GEVGE Vernova Inc. COM | 0.85% | 0.42% | 0.42% |
 KLACKLA Corp. COM NEW | 0.70% | 0.35% | 0.35% |
 AMGNAmgen Inc. COM | 0.50% | 0.34% | 0.34% |
Frequently Asked Questions
How much do IWF and VOO overlap?
IWF and VOO overlap by 57.6% of portfolio weight. They share 189 holdings (IWF holds 387 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWF and VOO?
The two portfolios are 57.6% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of IWF and VOO?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and GOOGL. Together the top 10 shared positions account for 63% of the total overlap.
What does IWF own that VOO doesn't?
198 positions (4.7% of IWF) are unique to IWF, led by SPOT, NET and SNOW. In the other direction, 315 positions (34.4% of VOO) are unique to VOO.