DIA vs OEF: Differences, Returns & Fees
DIA and OEF hold 34% of their weight in the same names, and OEF returned +16.8% over the year. Net assets: $44.4bn on Oct 8, 2026 for SPDR Dow Jones Industrial Average ETF Trust, and $20.8bn on Oct 9, 2026 for iShares S&P 100 ETF.
DIA costs 0.04 points a year less; their one-year returns differ by 3.8 points; DIA is 2.1 times larger.
| DIA | OEF | |
|---|---|---|
| Expense ratio | 0.16% | 0.20% |
| Net assets, as of Oct 8, 2026 | $44.4bn | $20.7bn |
| Total return, 1 year | +13.0% | +16.8% |
| What it tracks | Dow Jones Industrial Average | S&P 100 |
| Holdings in common | 34% | |
| Top ten holdings, share of the fund | 55.0% | 52.6% |
| Below its high | 4.6%, high on Aug 5, 2026 | |
Holdings in common uses holdings dated Oct 8, 2026 and Oct 9, 2026.
What they hold in common
By the books each fund has filed, DIA and OEF hold 34% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Oct 8, 2026 and Oct 9, 2026.
half
34% in common
On the same fields
DIA and OEF on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.
About DIA
DIA tracks the Dow Jones Industrial Average. Over the year to Oct 9, 2026 it returned +13.0% with distributions reinvested. The prospectus expense ratio is 0.16% a year. By its holdings published by its issuer for Oct 8, 2026, 97% of the fund by weight is stocks the S&P 500 also holds, across 30 positions, with the top ten at 55.0%. It sat 4.6% below its high of Aug 5, 2026 on Oct 9, 2026.
About OEF
OEF tracks an index. Over the year to Oct 9, 2026 it returned +16.8% with distributions reinvested. The prospectus expense ratio is 0.20% a year. By its holdings published by its issuer for Oct 9, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 102 positions, with the top ten at 52.6%.
Questions people ask
- Which returned more over the last year, DIA or OEF?
- In the year to Oct 9, 2026, with distributions reinvested, DIA returned +13.0% and OEF +16.8%.
- Which is cheaper, DIA or OEF?
- DIA is cheaper, by 0.04 percentage points a year. That is about $4 on $10,000 held for a year. Fees come from each fund's prospectus.
ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, DIA against OEF, data as of Oct 9, 2026. https://etfiq.com/compare/any/dia-vs-oef
ETFIQ. (Oct 9, 2026). DIA against OEF. Retrieved from https://etfiq.com/compare/any/dia-vs-oef
[DIA against OEF (ETFIQ, Oct 9, 2026)](https://etfiq.com/compare/any/dia-vs-oef)
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