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SPDR Dow Jones Industrial Average ETF Trust
The SPDR Dow Jones Industrial Average ETF Trust (DIA), launched by State Street Global Advisors in 1998, tracks the 30 DJIA stocks as a unit investment...
SPDR Dow Jones Industrial Average ETF Trust
State Street Global Advisors introduced the SPDR Dow Jones Industrial Average ETF Trust (DIA) in 1998, making it one of the earliest ETFs to track the Dow Jones Industrial Average. The trust was structured as a unit investment trust (UIT), a vehicle that holds a fixed portfolio of stocks and terminates at a set date, unlike most modern ETFs, which are open-end funds. SSGA sponsors the trust, with the underlying securities managed by a trustee. The trust's portfolio consists solely of the 30 component stocks of the DJIA, weighted by price rather than market capitalization. This means companies with higher stock prices have a larger weighting, a design that dates to the index's 1896 creation. Sector coverage spans industrials, technology, healthcare, financials, and consumer goods, among others, replicating the DJIA's sector mix. As of 2025, the trust reported net assets of roughly $35 billion (per State Street Global Advisors, 2025). The trust distributes dividends quarterly and trades on NYSE Arca. It has no dedicated investment team beyond the trustee and the index administration by S&P Dow Jones Indices. The trust's termination date is currently set for 2078, though it can be renewed by the sponsor. In June 2024, the trust's holdings were adjusted following S&P's DJIA component changes, including the addition of Amazon.com Inc. replacing Walgreens Boots Alliance (per S&P Dow Jones Indices, February 2024). The UIT structure means the trust cannot reinvest dividends or engage in securities lending, unlike most equity ETFs. This makes DIA's dividend payments pure pass-through income and limits any tracking error from reinvestment timing. The trust's fixed lifecycle and forced dividend distribution make it a distinct vehicle for investors seeking strict index replication without fund manager discretion.
General information
Firm type
other
Year founded
1998
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Boston
Corporate office
Boston, MA, United States
Sector focus
Frequently asked questions
How is the SPDR Dow Jones Industrial Average ETF Trust structurally different from most ETFs?
The trust is structured as a unit investment trust (UIT), not an open-end fund. Under a UIT structure, the portfolio is fixed and holds the 30 DJIA components; it cannot reinvest dividends or lend securities. The trust has a termination date of 2078, though the sponsor may extend it. This differs from open-end ETFs, which can reinvest dividends and adjust holdings more flexibly.
Who manages the trust's investments?
The trust is not actively managed. State Street Global Advisors sponsors it, and the trustee administers portfolio adjustments only when S&P Dow Jones Indices changes the DJIA components. Dividend distributions and corporate actions are handled automatically per the trust's governing document.
What index does the trust track, and how does weighting work?
The trust tracks the Dow Jones Industrial Average, a price-weighted index of 30 US large-cap stocks. Price weighting means stocks with higher share prices have greater influence on performance, unlike market-cap-weighted indices. The index includes companies like UnitedHealth Group Inc., Goldman Sachs Group Inc., and Microsoft Corp.
Does the trust pay dividends, and how are they taxed?
Yes, the trust pays dividends quarterly from the dividends received on its underlying DJIA stocks. Because dividends are passed through to shareholders without reinvestment, they are taxable as ordinary income or qualified dividends per IRS rules. The trust does not retain or reinvest any dividends.
What are the trust's holdings and sector composition?
The trust holds exactly the 30 stocks in the DJIA. Sector composition reflects the index's mix, with major exposures to industrials, technology, healthcare, financials, and consumer goods. As of 2025, top holdings included UnitedHealth Group Inc., Goldman Sachs Group Inc., and Microsoft Corp. (per SSGA, 2025).
How does a unit investment trust differ from a traditional mutual fund?
A UIT issues a fixed number of units and holds a static portfolio until its termination date. Unlike mutual funds, UITs do not continuously issue or redeem shares; they are traded on secondary markets. The trust cannot actively trade or reinvest dividends, providing predictable tax treatment and portfolio composition.
What are the trust's expense ratios and fees?
The trust's expense ratio is 0.16%, or $16 per $10,000 invested, according to State Street Global Advisors. This covers trustee services, custody, and administrative costs. Because it is a UIT, there are no advisory fees for active management.
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