UDOW and DIA both reference the Dow Jones Industrial Average, but they are built for different return patterns. UDOW targets three times the Dow’s return for each day, before fees and expenses; DIA seeks generally to correspond to the index’s price and yield performance before expenses. The crucial distinction is that UDOW’s three-times target is daily—not a promise of three times the Dow’s return over weeks or months.
What is the difference between UDOW and DIA?
| Feature | UDOW | DIA |
|---|---|---|
| Objective | Seeks 3x the Dow Jones Industrial Average’s daily performance before fees and expenses, according to ProShares. | Seeks generally to correspond to the Dow’s price and yield performance before expenses, according to the State Street fact sheet dated June 30, 2026. |
| Holding-period design | Daily leveraged objective; results over longer periods can differ significantly from 3x the index’s cumulative return. | Conventional index-tracking ETF objective; it does not seek leveraged daily returns. |
| Published expense ratio | 0.95% gross and 0.95% net, as reported on ProShares’ fund page accessed October 4, 2026. | 0.16% gross, in State Street’s fact sheet dated June 30, 2026. |
| Benchmark | Dow Jones Industrial Average. | Dow Jones Industrial Average, a price-weighted index of 30 U.S. blue-chip stocks, per State Street’s June 30, 2026 fact sheet. |
| Principal additional considerations | Leverage, daily resetting and compounding, alongside equity-market exposure. | Equity-market, tracking, liquidity and premium-or-discount risks. |
The expense ratios are dated fund disclosures, not a complete estimate of what an investor will pay. Brokerage commissions and other trading costs may also apply, and fund terms can change. Check the latest fund documents before investing.
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Is UDOW three times DIA?
No—not over an arbitrary holding period. UDOW targets three times the Dow’s return for one day, before fees and expenses. DIA is designed to track the Dow’s price and yield performance before expenses. Although both relate to the same index, UDOW is not simply a leveraged version of DIA’s total return over a week, month or year.
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How does UDOW perform over more than one day?
Daily returns compound along the path
A daily leveraged fund resets its exposure to pursue its daily multiple. Over multiple days, the sequence of returns matters: the fund compounds its daily results rather than multiplying the index’s final cumulative return by three. ProShares warns that for a holding period other than one day, UDOW’s return may be higher or lower than its daily target, and the difference may be significant.
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For example, consider an arithmetic illustration—not historical UDOW performance. If an index rises 10% one day and then falls 9.09%, it returns approximately to its starting value. A fund targeting 3x daily returns would gain about 30% and then lose about 27.27%, leaving it down about 5.45% cumulatively before fees and tracking effects. This shows how daily compounding can produce a result different from three times the index’s total return.
Volatility affects the gap
ProShares explains that smaller index moves combined with higher volatility can worsen the divergence from the daily target, while larger moves with lower volatility can improve it. The effect is not a guaranteed daily loss or a rule that every longer holding period loses money; the outcome depends on the return path.
Which has the lower expense ratio?
DIA has the lower published expense ratio in the cited disclosures: State Street reported a 0.16% gross ratio in its fact sheet dated June 30, 2026, while ProShares reported 0.95% gross and net for UDOW on its fund page accessed October 4, 2026. These figures have different source dates. An expense ratio does not capture every investor cost, and fees, trading costs and fund details should be checked in the current documents.
What Dow exposure do the funds provide?
Both funds are tied to the Dow Jones Industrial Average. State Street describes the index as price weighted and composed of 30 U.S. blue-chip stocks. A price-weighted index gives greater influence to higher-priced shares, rather than weighting companies by their total market value. And 30 components do not make the Dow a representation of the entire U.S. stock market.
As a dated example of how concentrated index exposure can be, State Street’s June 30, 2026 fact sheet listed financials at 26.70% and industrials at 18.94% of DIA’s sector weights; the sheet says these weights may change. The same document reported a 1.36% 30-day SEC yield on that date. That standardized yield measure is not interchangeable with a distribution yield or a UDOW distribution figure.
What risks should you compare?
UDOW: leverage and daily reset effects
- Leverage magnifies daily losses as well as gains.
- Multi-day results depend on the path and volatility of daily index returns, not just the index’s start and end points.
- Equity-market risk remains: leverage does not protect against declines in the Dow’s stocks.
DIA: equity and ETF risks
- DIA remains exposed to losses in its underlying stocks and to the Dow’s concentrated, price-weighted construction.
- Its market price can differ from net asset value, and tracking error can cause returns to diverge from the index.
- ETF shares may not trade readily in all conditions and may trade at significant discounts during market stress, according to State Street’s fact sheet.
How to decide which fits your strategy
The useful comparison is not which ticker is universally better, but whether the fund’s objective and risks fit the intended use. Consider these questions before choosing:
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- What exposure are you seeking? DIA is the conventional Dow-tracking option here. UDOW is designed for 3x daily Dow exposure before fees and expenses.
- What is your holding period and monitoring plan? UDOW’s stated target is daily, and its longer-period outcome can diverge significantly from three times the index’s cumulative return.
- Can you tolerate amplified losses? UDOW’s leverage can increase the impact of a down day; DIA has equity risk but does not have UDOW’s 3x daily objective.
- Have you checked all-in costs and current documents? Compare the latest prospectuses and fact sheets, plus any brokerage and trading costs. Published expense ratios alone are not total cost.
Neither fund eliminates market risk, and past performance is not a forecast. If comparing performance figures, verify whether they use NAV or market price, the period and as-of date, and whether fees and dividends are reflected. Which choice suits an individual depends on investment horizon, risk tolerance, objectives, tax circumstances and the rest of the portfolio; this comparison is educational, not personalized investment advice.
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