SPLG vs SPY: Holdings Overlap
SPLGState Street® SPDR® Portfolio S&P 500® ETF
State Street (SPDR) · 504 holdings · $157.4B · as of 2026-08-06
SPYState Street® SPDR® S&P 500® ETF Trust
State Street (SPDR) · 504 holdings · $812.0B · as of 2026-08-06
How similar are SPLG and SPY?
State Street® SPDR® Portfolio S&P 500® ETF (SPLG, by State Street (SPDR)) holds 504 positions; State Street® SPDR® S&P 500® ETF Trust (SPY, by State Street (SPDR)) holds 504. They have 504 holdings in common, and by portfolio weight the two funds are 99.9% identical. In practical terms the pair is essentially interchangeable, so holding both adds little diversification.
- Overlap by Weight
- 99.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 504SPLG holds 504 · SPY holds 504
- Weight in Shared Holdings
- SPLG 100%·SPY 100%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 SPLG
Every position in SPLG is also held by SPY, so it brings nothing the other fund doesn’t already own.
Only in SPY
Every position in SPY is also held by SPLG, so it brings nothing the other fund doesn’t already own.
Sector Breakdown
| Sector | SPLG | SPY |
|---|---|---|
| Information Technology | 37.6% | 37.6% |
| Financials | 12.3% | 12.3% |
| Communication Services | 9.7% | 9.7% |
| Consumer Discretionary | 9.3% | 9.3% |
| Health Care | 8.9% | 8.9% |
| Other Sectors | 22.1% | 22.1% |
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 |
|---|---|---|---|---|---|---|---|
| SPLG | +3.4% | +14.1% | +23.7% | +21.3% | +13.4% | +15.4% | 1.00% |
| SPY | +3.4% | +14.0% | +23.7% | +21.2% | +13.3% | +15.3% | 0.97% |
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 SPLG vs SPY →
Shared Holdings(504)
The top 10 shared positions account for 38% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 8.00% | 8.00% | 8.00% |
|---|---|---|---|
 AAPLApple Inc. COM | 6.92% | 6.92% | 6.92% |
 MSFTMicrosoft Corp. COM | 5.60% | 5.60% | 5.60% |
 AMZNAmazon.com, Inc. COM | 4.02% | 4.02% | 4.02% |
 GOOGLAlphabet Inc. CAP STK CL A | 3.16% | 3.16% | 3.16% |
 AVGOBroadcom Inc COM | 3.00% | 3.00% | 3.00% |
 GOOGAlphabet Inc. CAP STK CL C | 2.54% | 2.54% | 2.54% |
 METAMeta Platforms, Inc., Class A | 1.95% | 1.95% | 1.95% |
 MUMicron Technology Inc. COM | 1.50% | 1.50% | 1.50% |
 BRK-BBerkshire Hathaway, Inc., Class B | 1.45% | 1.45% | 1.45% |
 JPMJPMorgan Chase & Co. COM | 1.44% | 1.44% | 1.44% |
 LLYEli Lilly & Co. COM | 1.42% | 1.42% | 1.42% |
 TSLATesla Inc COM | 1.36% | 1.36% | 1.36% |
 AMDAdvanced Micro Devices Inc. COM | 1.20% | 1.20% | 1.20% |
 XOMEXXONMOBIL HOLDINGS CORP | 0.97% | 0.97% | 0.97% |
 JNJJohnson & Johnson COM | 0.93% | 0.93% | 0.93% |
 VVisa, Inc., Class A | 0.93% | 0.93% | 0.93% |
 WMTWalmart Inc COM | 0.74% | 0.74% | 0.74% |
 CSCOCisco Systems, Inc. COM | 0.72% | 0.72% | 0.72% |
 INTCIntel Corporation COM | 0.71% | 0.71% | 0.71% |
 MAMasterCard Incorporated CL A | 0.70% | 0.70% | 0.70% |
 ABBVAbbVie Inc. COM | 0.65% | 0.65% | 0.65% |
 COSTCostco Wholesale Corporation COM | 0.63% | 0.63% | 0.63% |
 AMATApplied Materials Inc. COM | 0.63% | 0.63% | 0.63% |
 BACBank of America Corp. COM | 0.62% | 0.62% | 0.62% |
Showing the top 250 of 504 shared holdings by overlap weight.
Frequently Asked Questions
How much do SPLG and SPY overlap?
SPLG and SPY overlap by 99.9% of portfolio weight. They share 504 holdings (SPLG holds 504 positions and SPY holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both SPLG and SPY?
The two portfolios are 99.9% 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 SPLG and SPY?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and GOOGL. Together the top 10 shared positions account for 38% of the total overlap.
What does SPLG own that SPY doesn't?
Nothing. Every position in SPLG is also held by SPY. In the other direction, 0 positions (0.0% of SPY) are unique to SPY.