IWBUS equity
iShares Russell 1000 ETF
1,023holdings
0.15%annual fee
USmarket
Valuation900 companies covered
26.5×P / E96% by weight
5.09×P / B85% by weight
3.8%Earnings yield
ETF comparisons / IWB vs SPY
US equity comparison · Holdings dated 2026-09-11
IWB vs SPY
iShares Russell 1000 ETF compared with State Street SPDR S&P 500 ETF Trust
These funds provide similar company exposure.IWB has 463 companies outside the overlap; SPY has 24.
Do IWB and SPY overlap?
IWB and SPY overlap by 90.7% by weight, across 477 shared companies.
SPYUS equity
State Street SPDR S&P 500 ETF Trust
504holdings
0.09%annual fee
USmarket
Valuation492 companies covered
27.5×P / E97% by weight
5.44×P / B85% by weight
3.6%Earnings yield
Price development
Both lines rebased to 0% over their shared dates
Largest shared positions
477 companies held in both funds
IWB weight
SPY weight
| Shared company | IWB | SPY |
|---|---|---|
| NVIDIA CORP NVDA | 7.20% | 8.01% |
| Apple Inc AAPL | 6.79% | 7.40% |
| Microsoft Corp MSFT | 5.20% | 5.58% |
| ALPHABET INC GOOGL 2 share classes | 5.04% | 5.41% |
| ↳ ALPHABET INC-CL A GOOGL | 2.78% | 3.01% |
| ↳ ALPHABET INC-CL C GOOG | 2.26% | 2.40% |
| AMAZON.COM INC AMZN | 3.51% | 3.81% |
| BROADCOM INC AVGO | 2.38% | 2.60% |
| META PLATFORMS INC-CLASS A META | 2.02% | 2.16% |
| Micron Technology Inc MU | 1.56% | 1.67% |
| TESLA INC TSLA | 1.51% | 1.56% |
| JPMorgan Chase & Co JPM | 1.35% | 1.45% |
| BERKSHIRE HATHAWAY INC. BRK/B | 1.34% | 1.42% |
| ELI LILLY & CO LLY | 1.26% | 1.34% |
| ADVANCED MICRO DEVICES AMD | 1.19% | 1.28% |
| ExxonMobil Holdings Corporation 2670549D | 0.98% | 1.04% |
| JOHNSON & JOHNSON JNJ | 0.91% | 0.97% |
| Visa Inc V | 0.87% | 0.93% |
| WALMART INC. WMT | 0.67% | 0.71% |
| Intel Corp INTC | 0.67% | 0.77% |
| Mastercard Inc MA | 0.65% | 0.70% |
| AbbVie Inc ABBV | 0.64% | 0.69% |
| CISCO SYSTEMS, INC. CSCO | 0.63% | 0.67% |
| Bank of America Corp BAC | 0.59% | 0.62% |
| Costco Wholesale Corp COST | 0.57% | 0.61% |
| Chevron Corp CVX | 0.56% | 0.61% |
| LAM RESEARCH LRCX | 0.53% | 0.57% |
IWB and SPY questions
Based on the holdings compared above
How much do IWB and SPY overlap?
IWB and SPY overlap by 90.7% by weight, across 477 shared companies.
Which companies do IWB and SPY both hold?
The largest companies held in both funds are NVIDIA CORP, Apple Inc, Microsoft Corp, ALPHABET INC, AMAZON.COM INC.
Can I hold both IWB and SPY?
Holding both means 90.7% of that part of your portfolio is the same companies counted twice. That can suit you or not depending on your goals; this tool reports the overlap rather than giving advice.
Is IWB or SPY cheaper?
IWB has a 0.15% expense ratio and SPY has 0.09%.
How do IWB and SPY compare on valuation?
IWB has a weighted P/E of 26.5 and SPY has a weighted P/E of 27.5.
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