ETF comparison
SPLG vs SPY
Both US Large Cap.
SPDR Portfolio S&P 500 ETF · State Street SPDR S&P 500 ETF Trust
Holdings overlap
466 positions appear in both funds. Buying equal dollars of SPLG and SPY would leave roughly 88.5% of each dollar exposed to the same underlying securities.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
SPLG is 7 bps cheaper than SPY. On a $100,000 position that's about $74/yr more in fees for SPY.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with SPLG vs SPY.
Top shared holdings
466 shared in total| # | Holding | In SPLG | In SPY | Overlap |
|---|---|---|---|---|
| 1 | NVIDIA Corp | 7.57% | 7.44% | 7.44% |
| 2 | Apple Inc | 6.66% | 6.72% | 6.66% |
| 3 | Microsoft Corp | 4.91% | 4.44% | 4.44% |
| 4 | Amazon.com Inc | 3.64% | 3.68% | 3.64% |
| 5 | Alphabet Inc | 2.99% | 3.29% | 2.99% |
| 6 | Broadcom Inc | 2.62% | 2.72% | 2.62% |
| 7 | Alphabet Inc | 2.40% | 2.63% | 2.40% |
| 8 | Meta Platforms Inc | 2.24% | 2.09% | 2.09% |
| 9 | Tesla Inc | 1.87% | 1.86% | 1.86% |
| 10 | Berkshire Hathaway Inc | 1.57% | 1.42% | 1.42% |
| 11 | JPMorgan Chase & Co | 1.42% | 1.39% | 1.39% |
| 12 | Eli Lilly & Co | 1.30% | 1.47% | 1.30% |
Only in SPLG
39 total- Exxon Mobil Corp 1.27%
- Linde PLC 0.41%
- Honeywell International Inc 0.26%
- Eaton Corp PLC 0.25%
- Accenture PLC 0.22%
- Chubb Ltd 0.21%
- Medtronic PLC 0.20%
- Trane Technologies PLC 0.16%
- Seagate Technology Holdings PLC 0.15%
- Johnson Controls International plc 0.14%
Only in SPY
38 total- EXXONMOBIL HOLDINGS CORP 0.88%
- LINDE PLC 0.38%
- MARVELL TECHNOLOGY INC 0.37%
- SEAGATE TECHNOLOGY HOLDINGS 0.32%
- EATON CORP PLC 0.25%
- CHUBB LTD 0.20%
- TRANE TECHNOLOGIES PLC 0.17%
- MEDTRONIC PLC 0.16%
- JOHNSON CONTROLS INTERNATION 0.14%
- ACCENTURE PLC CL A 0.13%
Open SPLG or SPY at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.