IWB ETF Profile
IWB is an equity ETF from IShares. Its largest disclosed positions include NVDA, AAPL, and MSFT, and the top three holdings account for 17.88% of portfolio weight shown here. On ETF Overlap Checker, it currently connects to 61 comparison pages.
Issuer
IShares
Asset Class
Equity
Holdings
1002
Compare Pages
61
About IWB
The iShares Russell 1000 ETF seeks to track the investment results of an index composed of large- and mid-capitalization U.S. equities.
- IWB has a broad holdings footprint, with 1002 positions in the latest imported dataset.
- The largest disclosed position is NVDA at 6.95% of the portfolio.
- The top three disclosed holdings make up 17.88% of the portfolio, and the top ten add up to 34.49%.
- Sector labels are limited in the visible top holdings, so the biggest positions matter more than sector buckets here.
- IWB currently appears in 61 active ETF comparison pages on this site.
Data And Coverage
- Expense ratio
- 0.15%
- AUM
- $45B
- Inception date
- May 15, 2000
- Holdings updated
- Mar 12, 2026
- Data source
- Financial Modeling Prep
Review the methodology for the overlap formula and visit the ETF directory for the full set of indexed fund hubs.
Compare IWB with another ETF
What Stands Out About IWB
Portfolio Shape
The disclosed top holdings suggest a broad portfolio rather than a narrow single-theme sleeve. NVDA, AAPL, and MSFT are the largest visible positions, but the top three holdings add up to only 17.88% and the top ten to 34.49%. Sector labels are limited in the visible top holdings, so the concentration read is driven mainly by the largest names themselves.
What Kind Of Overlap To Expect
IWB should show moderate to meaningful overlap with ETFs built for similar core equity exposure, but more separation from narrow sector or international funds. The biggest shared drivers usually come from the same large holdings that dominate the top of the portfolio.
When Investors Compare It
On this site, investors often compare IWB with VOO, VTI, and QQQ. Those matchups usually answer a simple question: does adding this fund create a different sleeve, or does it mostly duplicate exposure you already own? IWB currently connects to 61 live comparison pages.
Holdings Concentration Snapshot
Concentration
- Largest disclosed holding
- 6.95%
- Top 3 holdings
- 17.88%
- Top 10 holdings
- 34.49%
- Total holdings
- 1002
These numbers help show whether IWB behaves more like a broad portfolio building block or a fund where the biggest positions dominate the ride.
Visible Sector Mix
Sector labels are limited in the visible top holdings for IWB, so the strongest signal here is still the size of the largest positions themselves.
Top Holdings
These holdings help explain how IWB overlaps with other funds. The top ten disclosed positions represent 34.49% of the portfolio shown here.
| Holding | Name | Sector | Weight |
|---|---|---|---|
| NVDA | NVIDIA CORP | N/A | 6.95% |
| AAPL | APPLE INC | N/A | 6.11% |
| MSFT | MICROSOFT CORP | N/A | 4.83% |
| AMZN | AMAZON COM INC | N/A | 3.30% |
| GOOGL | ALPHABET INC CLASS A | N/A | 2.87% |
| AVGO | BROADCOM INC | N/A | 2.54% |
| GOOG | ALPHABET INC CLASS C | N/A | 2.33% |
| META | META PLATFORMS INC CLASS A | N/A | 2.29% |
| TSLA | TESLA INC | N/A | 1.81% |
| BRK-B | BERKSHIRE HATHAWAY INC CLASS B | N/A | 1.46% |
Related Overlap Comparisons
Use these pages to see whether adding IWB changes your exposure or mostly duplicates positions you already own.