ETF comparison
DIA vs SPY
Both US Large Cap.
State Street SPDR Dow Jones Industrial Average ETF Trust · State Street SPDR S&P 500 ETF Trust
Holdings overlap
30 positions appear in both funds. Buying equal dollars of DIA and SPY would leave roughly 29.7% 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
SPY is 7 bps cheaper than DIA. On a $100,000 position that's about $66/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 SPY.
Top shared holdings
30 shared in total| # | Holding | In DIA | In SPY | Overlap |
|---|---|---|---|---|
| 1 | MICROSOFT CORP | 5.86% | 5.86% | 5.86% |
| 2 | APPLE INC | 3.91% | 7.70% | 3.91% |
| 3 | ALPHABET INC CL A | 3.64% | 2.88% | 2.88% |
| 4 | AMAZON.COM INC | 2.81% | 3.72% | 2.81% |
| 5 | NVIDIA CORP | 2.39% | 7.78% | 2.39% |
| 6 | JPMORGAN CHASE + CO | 3.78% | 1.35% | 1.35% |
| 7 | VISA INC CLASS A SHARES | 4.66% | 1.07% | 1.07% |
| 8 | JOHNSON + JOHNSON | 3.01% | 0.98% | 0.98% |
| 9 | WALMART INC | 1.36% | 0.82% | 0.82% |
| 10 | CHEVRON CORP | 2.55% | 0.68% | 0.68% |
| 11 | CISCO SYSTEMS INC | 1.18% | 0.63% | 0.63% |
| 12 | PROCTER + GAMBLE CO/THE | 1.85% | 0.58% | 0.58% |
Only in DIA
0 totalEvery DIA position is also held by SPY.
Only in SPY
474 total- BROADCOM INC 2.33%
- ALPHABET INC CL C 2.31%
- META PLATFORMS INC CLASS A 2.17%
- TESLA INC 1.60%
- ELI LILLY + CO 1.58%
- BERKSHIRE HATHAWAY INC CL B 1.54%
- MICRON TECHNOLOGY INC 1.46%
- ADVANCED MICRO DEVICES 1.26%
- EXXONMOBIL HOLDINGS CORP 1.11%
- MASTERCARD INC A 0.78%
Related comparisons
More comparisons with DIA
- DIA vs VV · Vanguard Morningstar Large-Cap ETF 28.7%
- DIA vs SPYM · State Street SPDR Portfolio S&P 500 ETF 28.6%
- DIA vs IVV · iShares Core S&P 500 ETF 28.6%
- DIA vs VOO · Vanguard S&P 500 ETF 28.5%
- DIA vs SCHX · Schwab U.S. Large-Cap ETF 28.1%
- DIA vs VONE · Vanguard Russell 1000 Index Fund ETF Shares 27.8%
More comparisons with SPY
- SPY vs MTUM · iShares MSCI USA Momentum Factor ETF 29.0%
- SPY vs AVLV · Avantis US Large Cap Value ETF 26.7%
- SPY vs RPG · Invesco S&P 500 Pure Growth ETF 22.2%
- SPY vs RDVY · First Trust Rising Dividend Achievers ETF 22.0%
- SPY vs SPHB · Invesco S&P 500 High Beta ETF 21.6%
- SPY vs ACWV · iShares MSCI Global Min Vol Factor ETF 19.9%
Percentages are holdings overlap with the named fund.
Open DIA 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.