ETF comparison
DIA vs SPYM
Both US Large Cap.
State Street SPDR Dow Jones Industrial Average ETF Trust · State Street SPDR Portfolio S&P 500 ETF
Holdings overlap
30 positions appear in both funds. Buying equal dollars of DIA and SPYM would leave roughly 28.6% 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 14 bps cheaper than DIA. On a $100,000 position that's about $140/yr more in fees for DIA.
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 DIA vs SPYM.
Top shared holdings
30 shared in total| # | Holding | In DIA | In SPYM | Overlap |
|---|---|---|---|---|
| 1 | MICROSOFT CORP | 6.01% | 4.29% | 4.29% |
| 2 | APPLE INC | 3.87% | 6.59% | 3.87% |
| 3 | ALPHABET INC CL A | 3.99% | 3.25% | 3.25% |
| 4 | AMAZON.COM INC | 2.92% | 3.62% | 2.92% |
| 5 | NVIDIA CORP | 2.72% | 7.51% | 2.72% |
| 6 | JPMORGAN CHASE + CO | 3.86% | 1.36% | 1.36% |
| 7 | JOHNSON + JOHNSON | 2.97% | 0.95% | 0.95% |
| 8 | VISA INC CLASS A SHARES | 4.19% | 0.88% | 0.88% |
| 9 | WALMART INC | 1.21% | 0.77% | 0.77% |
| 10 | CATERPILLAR INC | 9.82% | 0.76% | 0.76% |
| 11 | CISCO SYSTEMS INC | 1.30% | 0.72% | 0.72% |
| 12 | UNITEDHEALTH GROUP INC | 4.32% | 0.58% | 0.58% |
Only in DIA
0 totalEvery DIA position is also held by SPYM.
Only in SPYM
476 total- Broadcom Inc 2.77%
- Alphabet Inc 2.59%
- Micron Technology Inc 2.02%
- Meta Platforms Inc 1.92%
- Tesla Inc 1.83%
- Eli Lilly & Co 1.47%
- Advanced Micro Devices Inc 1.47%
- Berkshire Hathaway Inc 1.42%
- Intel Corp 1.02%
- Applied Materials Inc 0.89%
Related comparisons
More comparisons with DIA
More comparisons with SPYM
- SPYM vs AVLV · Avantis US Large Cap Value ETF 28.6%
- SPYM vs RPG · Invesco S&P 500 Pure Growth ETF 23.6%
- SPYM vs RDVY · First Trust Rising Dividend Achievers ETF 23.5%
- SPYM vs SPHB · Invesco S&P 500 High Beta ETF 23.3%
- SPYM vs ACWV · iShares MSCI Global Min Vol Factor ETF 21.3%
- SPYM vs SPHQ · Invesco S&P 500 Quality ETF 20.2%
Percentages are holdings overlap with the named fund.
Open DIA 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.