3ISHUS
iShares Core S&P Total U.S. Stock Market ETF
2,502holdings
0.03%annual fee
USmarket
Valuation1,119 companies covered
26.5×P / E94% by weight
4.85×P / B84% by weight
3.8%Earnings yield
ETF comparisons / 3ISH vs SPY
Fund comparison · 3ISH · SPY 2026-09-11
3ISH vs SPY
iShares Core S&P Total U.S. Stock Market ETF compared with State Street SPDR S&P 500 ETF Trust
These funds provide similar company exposure.3ISH has 729 companies outside the overlap; SPY has 34.
Do 3ISH and SPY overlap?
3ISH and SPY overlap by 86.1% by weight, across 467 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
467 companies held in both funds
3ISH weight
SPY weight
| Shared company | 3ISH | SPY |
|---|---|---|
| NVIDIA CORP NVDA | 6.57% | 8.01% |
| Apple Inc AAPL | 6.31% | 7.40% |
| ALPHABET INC GOOGL 2 share classes | 5.28% | 5.41% |
| ↳ ALPHABET INC-CL A GOOGL | 2.93% | 3.01% |
| ↳ ALPHABET INC-CL C GOOG | 2.34% | 2.40% |
| Microsoft Corp MSFT | 4.04% | 5.58% |
| AMAZON.COM INC AMZN | 3.31% | 3.81% |
| BROADCOM INC AVGO | 2.37% | 2.60% |
| META PLATFORMS INC-CLASS A META | 1.79% | 2.16% |
| TESLA INC TSLA | 1.54% | 1.56% |
| Micron Technology Inc MU | 1.53% | 1.67% |
| ELI LILLY & CO LLY | 1.34% | 1.34% |
| BERKSHIRE HATHAWAY INC. BRK/B | 1.30% | 1.42% |
| JPMorgan Chase & Co JPM | 1.25% | 1.45% |
| ADVANCED MICRO DEVICES AMD | 1.18% | 1.28% |
| JOHNSON & JOHNSON JNJ | 0.88% | 0.97% |
| Visa Inc V | 0.83% | 0.93% |
| ExxonMobil Holdings Corporation 2670549D | 0.79% | 1.04% |
| Intel Corp INTC | 0.79% | 0.77% |
| WALMART INC. WMT | 0.68% | 0.71% |
| AbbVie Inc ABBV | 0.64% | 0.69% |
| CISCO SYSTEMS, INC. CSCO | 0.62% | 0.67% |
| Mastercard Inc MA | 0.61% | 0.70% |
| Costco Wholesale Corp COST | 0.59% | 0.61% |
| Caterpillar Inc CAT | 0.62% | 0.57% |
| LAM RESEARCH CORPORATION LRCX | 0.61% | 0.57% |
| Applied Materials Inc AMAT | 0.67% | 0.55% |
3ISH and SPY questions
Based on the holdings compared above
How much do 3ISH and SPY overlap?
3ISH and SPY overlap by 86.1% by weight, across 467 shared companies.
Which companies do 3ISH and SPY both hold?
The largest companies held in both funds are NVIDIA CORP, Apple Inc, ALPHABET INC, Microsoft Corp, AMAZON.COM INC.
Can I hold both 3ISH and SPY?
Holding both means 86.1% 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 3ISH or SPY cheaper?
3ISH has a 0.03% expense ratio and SPY has 0.09%.
How do 3ISH and SPY compare on valuation?
3ISH has a weighted P/E of 26.5 and SPY has a weighted P/E of 27.5.
Compare your own portfolio
Open the analyzerSee the companies and duplicated exposure across every fund you hold.