Which returned more over the last year, DIA or MDY?

In the year to Sep 12, 2026, with distributions reinvested, DIA returned +15.6% and MDY returned +13.0%, so DIA returned more. One year is one year; the longer windows are in the table.

Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

DIA vs MDY: how they differ

DIA and MDY are both equity index funds, and over the year DIA returned more, +15.6% against +13.0%.

SPDR Dow Jones Industrial Average ETF Trust and SPDR S&P MidCap 400 ETF Trust.

DIA and MDY on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	DIA SPDR Dow Jones Industrial Average ETF Trust	MDY SPDR S&P MidCap 400 ETF Trust
Where it sits	Core index fund	Core index fund
Issuer	State Street	State Street
What it is	Dow Jones Industrial Average	S&P MidCap 400, book from IJH
Total return, 1 year	+15.6%	+13.0%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−1.9 pts	−4.5 pts
Expense ratio	not published	0.23%
Holdings	not filed	400

DIA in plain words

DIA is an index equity fund tracking the Dow Jones Industrial Average. Over the year to Sep 11, 2026 it returned +15.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. It sat 3.1% below its high of Aug 5, 2026 on Sep 11, 2026.

MDY in plain words

MDY is an index equity fund tracking the S&P MidCap 400. Over the year to Sep 11, 2026 it returned +13.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.23% a year. By its holdings filed for Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 400 positions, with the top ten at 7.7%. It sat 5.3% below its high of Aug 14, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, DIA or MDY?: In the year to Sep 12, 2026, with distributions reinvested, DIA returned +15.6% and MDY returned +13.0%, so DIA returned more. One year is one year; the longer windows are in the table.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

DIA against MDY, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, DIA against MDY, data as of Sep 12, 2026. https://etfiq.com/compare/any/DIA-MDY Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources