ETF comparison
DFAU vs SPYM
US Total Market vs US Large Cap.
Dimensional US Core Equity Market ETF · State Street SPDR Portfolio S&P 500 ETF
Holdings overlap
471 positions appear in both funds. Buying equal dollars of DFAU and SPYM would leave roughly 82.0% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
SPYM is 10 bps cheaper than DFAU. On a $100,000 position that's about $100/yr more in fees for DFAU.
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 DFAU vs SPYM.
Top shared holdings
471 shared in total| # | Holding | In DFAU | In SPYM | Overlap |
|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | 6.74% | 7.51% | 6.74% |
| 2 | APPLE INC. | 6.45% | 6.59% | 6.45% |
| 3 | MICROSOFT CORPORATION | 5.09% | 4.29% | 4.29% |
| 4 | AMAZON.COM, INC. | 3.59% | 3.62% | 3.59% |
| 5 | ALPHABET INC. | 2.74% | 3.25% | 2.74% |
| 6 | BROADCOM INC. | 2.34% | 2.77% | 2.34% |
| 7 | ALPHABET INC. | 2.28% | 2.59% | 2.28% |
| 8 | META PLATFORMS, INC. | 1.79% | 1.92% | 1.79% |
| 9 | MICRON TECHNOLOGY, INC. | 1.39% | 2.02% | 1.39% |
| 10 | JPMORGAN CHASE & CO. | 1.28% | 1.36% | 1.28% |
| 11 | ELI LILLY AND COMPANY | 1.24% | 1.47% | 1.24% |
| 12 | BERKSHIRE HATHAWAY INC. | 1.11% | 1.42% | 1.11% |
Only in DFAU
1,719 total- EXXONMOBIL HOLDINGS CORPORATION 0.88%
- CHENIERE ENERGY, INC. 0.11%
- SNOWFLAKE INC. 0.09%
- FERGUSON ENTERPRISES INC. 0.09%
- SPOTIFY TECHNOLOGY S.A. 0.06%
- LPL FINANCIAL HOLDINGS INC. 0.06%
- TECHNIPFMC PLC 0.05%
- BLOOM ENERGY CORPORATION 0.05%
- CLOUDFLARE, INC. 0.05%
- ZOOM COMMUNICATIONS, INC. 0.05%
Only in SPYM
35 total- Exxon Mobil Corp 0.88%
- Welltower Inc 0.25%
- Prologis Inc 0.20%
- Equinix Inc 0.16%
- American Tower Corp 0.12%
- Simon Property Group Inc 0.11%
- Digital Realty Trust Inc 0.09%
- Realty Income Corp 0.09%
- Public Storage 0.08%
- Electronic Arts Inc 0.07%
Related comparisons
More comparisons with DFAU
More comparisons with SPYM
- SPYM vs MGC · Vanguard Morningstar Mega Cap ETF 81.4%
- SPYM vs ESGV · Vanguard ESG U.S. Stock ETF 80.1%
- SPYM vs ESGU · iShares ESG Aware MSCI USA ETF 77.7%
- SPYM vs GSLC · Goldman Sachs ActiveBeta U.S. Large Cap Equity ETF 75.0%
- SPYM vs OEF · iShares S&P 100 ETF 71.6%
- SPYM vs AVUS · Avantis US Equity ETF 71.4%
Percentages are holdings overlap with the named fund.
Open DFAU or SPYM 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.