SPYG vs IUSG: Holdings Overlap
SPYGState Street® SPDR® Portfolio S&P 500® Growth ETF
State Street (SPDR) · 147 holdings · $54.7B · as of 2026-08-06
IUSGiShares Core S&P U.S. Growth ETF
iShares · 385 holdings · $33.6B · as of 2026-03-31
Holdings snapshots are 128 days apart (SPYG: 2026-08-06, IUSG: 2026-03-31). 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 SPYG and IUSG?
State Street® SPDR® Portfolio S&P 500® Growth ETF (SPYG, by State Street (SPDR)) holds 147 positions; iShares Core S&P U.S. Growth ETF (IUSG, by iShares) holds 385. They have 143 holdings in common, and by portfolio weight the two funds are 90.6% identical. In practical terms the pair is essentially interchangeable, so holding both adds little diversification.
- Overlap by Weight
- 90.6%Sum of the smaller weight of each shared holding
- Shared Holdings
- 143SPYG holds 147 · IUSG holds 385
- Weight in Shared Holdings
- SPYG 100%·IUSG 95%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 SPYG
4 of 147 positions (0.5% of the fund) are not held by IUSG.
Only in IUSG
242 of 385 positions (5.3% of the fund) are not held by SPYG. Showing the top 30 by weight.
Sector Breakdown
| Sector | SPYG | IUSG |
|---|---|---|
| Information Technology | 52.5% | 46.0% |
| Communication Services | 15.3% | 16.0% |
| Financials | 9.0% | 9.6% |
| Consumer Discretionary | 8.4% | 9.4% |
| Industrials | 6.4% | 8.1% |
| Other Sectors | 8.4% | 10.6% |
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 |
|---|---|---|---|---|---|---|---|
| SPYG | +4.4% | +15.6% | +25.4% | +26.9% | +14.2% | +17.9% | 0.47% |
| IUSG | +4.3% | +15.9% | +25.6% | +26.2% | +13.9% | +17.5% | 0.48% |
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 SPYG vs IUSG →
Shared Holdings(143)
The top 10 shared positions account for 61% of the overlap, led by NVDA, MSFT and AAPL.
 NVDANVIDIA Corp. COM | 14.58% | 13.84% | 13.84% |
|---|---|---|---|
 MSFTMicrosoft Corp. COM | 10.20% | 8.97% | 8.97% |
 AAPLApple Inc. COM | 6.30% | 6.08% | 6.08% |
 GOOGLAlphabet Inc. CAP STK CL A | 5.76% | 5.47% | 5.47% |
 AVGOBroadcom Inc COM | 5.47% | 4.79% | 4.79% |
 GOOGAlphabet Inc. CAP STK CL C | 4.63% | 4.38% | 4.38% |
 METAMeta Platforms, Inc., Class A | 3.56% | 4.09% | 3.56% |
 AMZNAmazon.com, Inc. COM | 3.88% | 3.52% | 3.52% |
 BRK-BBerkshire Hathaway, Inc., Class B | 2.64% | 2.87% | 2.64% |
 LLYEli Lilly & Co. COM | 2.59% | 2.38% | 2.38% |
 JPMJPMorgan Chase & Co. COM | 1.78% | 1.76% | 1.76% |
 TSLATesla Inc COM | 1.53% | 2.12% | 1.53% |
 MUMicron Technology Inc. COM | 2.73% | 1.24% | 1.24% |
 AMDAdvanced Micro Devices Inc. COM | 2.19% | 1.08% | 1.08% |
 CATCaterpillar Inc COM | 1.08% | 1.08% | 1.08% |
 JNJJohnson & Johnson COM | 1.00% | 1.13% | 1.00% |
 PLTRPalantir Technologies, Inc., Class A | 0.98% | 1.09% | 0.98% |
 VVisa, Inc., Class A | 0.93% | 0.91% | 0.91% |
 AMATApplied Materials Inc. COM | 1.15% | 0.89% | 0.89% |
 LRCXLam Research Corporation COM NEW | 1.05% | 0.87% | 0.87% |
 MAMasterCard Incorporated CL A | 0.86% | 0.89% | 0.86% |
 NFLXNetflix, Inc. COM | 0.85% | 1.33% | 0.85% |
 RTXRTX Corp. COM | 0.83% | 0.85% | 0.83% |
 GEVGE Vernova Inc. COM | 0.74% | 0.77% | 0.74% |
 KLACKLA Corp. COM NEW | 0.69% | 0.63% | 0.63% |
Frequently Asked Questions
How much do SPYG and IUSG overlap?
SPYG and IUSG overlap by 90.6% of portfolio weight. They share 143 holdings (SPYG holds 147 positions and IUSG holds 385), based on each fund's latest SEC-reported holdings.
Is it redundant to own both SPYG and IUSG?
The two portfolios are 90.6% 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 SPYG and IUSG?
The largest positions held by both funds are NVDA, MSFT, AAPL, GOOGL and AVGO. Together the top 10 shared positions account for 61% of the total overlap.
What does SPYG own that IUSG doesn't?
4 positions (0.5% of SPYG) are unique to SPYG, led by MRVL, CCL and FERG. In the other direction, 242 positions (5.3% of IUSG) are unique to IUSG.