ETF Evaluator:
ProShares Big Data Refiners ETF ()
Follow This ETF
(as of Aug 25)
Best Performing in Technology Over the Last Year
| 136.7% | ASML Holding NV ADRhedged (ASMH) |
| 134.2% | Xtrackers Semiconductor Select Eq ETF (CHPS) |
| 129.4% | Invesco Semiconductors ETF (PSI) |
| 124.2% | First Trust Nasdaq Semiconductor ETF (FTXL) |
| 117.9% | VistaShares Artfcl Intlgc Supercycle ETF (AIS) |
Risk
Index
Risk
Index
ETF Details
ProShares Big Data Refiners ETF Overview
ProShares Big Data Refiners ETF (DAT) is a passively managed Sector Equity Technology exchange-traded fund (ETF). ProShares launched the ETF in 2021.
The investment seeks results, before fees and expenses, that track the performance of the FactSet Big Data Refiners Index.
The fund invests in financial instruments that ProShare Advisors believes, in combination, should track the performance of the index. The index is designed to measure the performance of companies that provide services related to analytics, software, hardware, and computing infrastructure for managing and extracting information from large structured and unstructured data sets. The fund will invest at least 80% of its total assets in components of the index or in instruments with similar economic characteristics.
About ProShares Big Data Refiners ETF (DAT)
There are 2 members of the management team with an average tenure of 4.11 years: Alexander Ilyasov (2021) and Eric Silverthorne (2023). Management tenure is more important for actively managed ETFs than passive index ETFs.
The ETF has 2 primary benchmarks: S&P Global 1200 TR index with a weighting of 100% and FactSet Big Data Refiners USD index with a weighting of 100%. ProShares Big Data Refiners ETF has 33 securities in its portfolio. The top 10 holdings constitute 49.2% of the ETF’s assets. The ETF meets the SEC requirement of being classified as a diversified fund. The ETF is not considered to have an ESG focus with its investment selection and management.
ProShares Big Data Refiners ETF is part of the Equity global asset class and is within the Sector Equity ETF group. ProShares Big Data Refiners ETF has 15.8% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 83.9% There is 15.8% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 0.0% (0.0% domestic bond, 0.0% foreign bond and 0.0% convertible bond). ProShares Big Data Refiners ETF has 0.2% of the portfolio in cash.
Assets Under Management
The fund has $5 million in total assets, which is below the $3 billion average for the Technology category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.
DAT Performance and Fees
The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The ProShares Big Data Refiners ETF expense ratio is average compared to funds in the Technology category. ProShares Big Data Refiners ETF has an expense ratio of 0.58%, which is 8% higher than its category average, making the fund expense ratio grade a C. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.
High portfolio turnover can translate to higher expenses and lower aftertax returns. ProShares Big Data Refiners ETF has a portfolio turnover rate of 35%, which indicates that it holds its assets around / 0.0 years. By way of comparison, the average portfolio turnover is 39% for the Technology category.
Recently, in the month of July 2026, ProShares Big Data Refiners ETF returned 6.2%, which earned it a grade of A, as the Technology category had an average return of -9.8%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all ETFs in that category.
ProShares Big Data Refiners ETF has a trailing yield of 0.00%, which is below the 0.45% category average.
The fund normally distributes its income quarterly.
It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.
ProShares Big Data Refiners ETF Grades
Year to date, the ETF has returned -1.1%, 22.4 percentage points worse than the category, which translates into a grade of F. The fund has returned -3.9% over the past year (grade of F) and 13.5% over the past three years (grade of F).
For more ETF grades, analysis and screening tools to help your investment discovery, join AAII for a $2, full-access trial. Learn more here: https://invest.aaii.com/membership.
Otherwise, for more information about ProShares Big Data Refiners ETF, including its riskiness, submit your email to unlock the rest of the article.
Gain access to exclusive AAII member-only content.
DAT Trailing NAV Total Returns Data as of 7/31/26
| Last Month |
Last Quarter |
Ann'l. 1Yr |
Ann'l. 3Yr |
Ann'l. 5Yr |
Ann'l. 10Yr |
|
| DAT Return (NAV) | 6.2% | 26.6% | -3.9% | 13.5% | na | na |
| DAT Return (Price) | 6.3% | 24.6% | -3.7% | 13.4% | na | na |
| NAV +/- Price Return | -0.075% | 1.983% | -0.187% | 0.168% | na | na |
| Technology Avg | -9.8% | 7.3% | 33.6% | 22.3% | 10.5% | 19.0% |
| DAT Grade (NAV) | A | A | F | F | na | na |
| +/- Category (NAV) | 16.0% | 19.3% | -37.5% | -8.8% | na | na |
| DAT Tax-Cost Ratio | na | na | 0.0% | 0.0% | na | na |
DAT Annual NAV Total ReturnsData as of 7/31/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| DAT Return (NAV) | -1.1% | 3.3% | 33.8% | 51.4% | -44.3% | na | na | na | na | na | na |
| DAT Return (Price) | -2.1% | 4.3% | 33.2% | 51.8% | -44.3% | na | na | na | na | na | na |
| NAV +/- Price Ret | 0.861% | 0.274% | -0.018% | 0.007% | 0.001% | na | na | na | na | na | na |
| Technology Avg | 21.3% | 23.2% | 19.9% | 43.8% | -35.8% | 16.7% | 53.3% | 37.8% | -3.2% | 33.7% | 15.0% |
| DAT Grade (NAV) | F | F | A | B | D | na | na | na | na | na | na |
| +/- Category | -22.4% | -19.9% | 13.9% | 7.7% | -8.5% | na | na | na | na | na | na |
| Risk Measures | |
| Beta: | 1.38 |
| R-Squared: | 36% |
| Standard Deviation: | 29.3% |
| Category Risk Index: | 1.10 |
| Category Risk Rating: | Above Average |
| Total Risk Index: | 2.39 |
| Total Risk Rating: | High |
| Portfolio Characteristics | |
| Yield: | 0.0% |
| Total Assets: | $ 6 Mil |
| Share Class Assets: | $ 6 Mil |
| Turnover: | 35.0% |
| Expense Ratio: | 0.58% |
| Index Fund: | Yes |
| Index Tracked: | S&P Global 1200 TR |
| Index Weighting: | 100% |
| Leveraged: | No |
| Socially Responsible Fund: | No |
| Capital Gains Distribution Frequency: | |
| Income Distribution Frequency: | Quarterly |
Management Team
| Number of Managers: 2 | |||
| Longest Tenure: 4.8 years | |||
| Average Tenure: 4.1 years | |||
| Managers (Year): Ilyasov Alexander (2021), Silverthorne Eric (2023) | |||
Portfolio Composition (as of 7/31/26)
| # of Holdings: | 33 |
| % in Top 10 Holdings: | 49.2% |
| Fund is Non-Diversified: | No |
| % in Foreign Issues: | 15.8% |
Portfolio Allocation |
|
| Domestic Stock: | 83.9% |
| Foreign Stock: | 15.8% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 0.0% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 0.2% |
Purchase Information
| Legal Structure: | Open Ended Investment Company |
| Fund Family: | ProShares |
| Phone Number: | 866-776-5125 |
| Website: | www.proshares.com |
| Inception Date: | September 29, 2021 |
Expenses and Fees
| Expense Ratio (%): | 0.58% (Rating: Avg) |
| Category Average Expense Ratio (%): | 0.54% |
