Price Move History
- Daily moves over 5%
- 5 252 sessions, October 28, 2025 to October 28, 2026
- Largest daily move
- -8.2% close of June 5, 2026
- 1-year change
- +27.5% closing prices, October 28, 2025 to October 28, 2026
- 1-month change
- -4.9% closing prices, September 28, 2026 to October 28, 2026
Company Description
The Defiance Quantum ETF (NASDAQ: QTUM) is a thematic exchange traded fund that seeks to track the performance of the BlueStar Machine Learning and Quantum Computing Index (BQTUM). According to available information, QTUM is designed to provide exposure to companies whose products, services, or operating activity relate to quantum computing and machine learning. The fund is part of the Defiance ETFs lineup, which focuses on income and thematic investing.
The ETF follows a rules-based index methodology through the BlueStar Machine Learning and Quantum Computing Index. That index targets a broad set of liquid companies connected to quantum computing or machine learning. The index is reconstituted and rebalanced semi-annually in June and December and applies an equal weighting scheme subject to liquidity-based caps. QTUM, in turn, holds a basket of globally listed stocks selected according to that index methodology.
Defiance ETFs describes QTUM as a way for investors to gain access to the next generation of disruptive technology through public equities. The fund’s underlying index is intended to capture companies involved with quantum computing, artificial intelligence, and machine learning. These areas are presented as important for high-speed data processing and storage and as relevant to fields such as risk management, cybersecurity, materials science, energy, and logistics.
As an ETF, QTUM is not actively managed. The fund’s holdings and sector allocations can change when the index is reconstituted or rebalanced, or when securities are added to or removed from the index. The fund is considered non-diversified, which means it may invest a larger portion of its assets in a smaller number of issuers than a diversified fund. It can also invest in foreign securities, which may involve risks related to currency fluctuations and political or economic conditions, including in emerging markets.
Defiance ETFs notes that the possible applications of quantum computing are in the exploration stages and that the possibility of returns from this theme is uncertain and may not be realized in the near term. The description of QTUM emphasizes that investing in the fund involves risk, including the potential loss of principal, and that technology-related companies can be vulnerable to rapid changes in technology cycles, product obsolescence, regulation, and competition.
Information about QTUM’s investment objectives, risks, charges, and expenses is provided in its prospectus. Defiance ETFs highlights that this document should be reviewed carefully before investing. The association with the BlueStar Machine Learning and Quantum Computing Index is based on a licensing arrangement, and BlueStar Indexes does not sponsor, endorse, sell, or promote QTUM and does not make representations about trading in the fund.
Stock Performance
Defiance Quantum ETF (QTUM) closed at $143.87 on October 28, 2026. Over the past 12 months, the price has gained 27.5%.
QTUM Metrics & Rankings
Price returns through October 28, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
Defiance Quantum ETF has 4 recent news articles. Of the recent coverage, 2 articles coincided with positive price movement and 2 with negative movement. Key topics include crypto. View all QTUM news →
SEC Filings
Short Interest History
Short interest in Defiance Quantum ETF (QTUM) currently stands at 768.1 thousand shares, up 67.6% from the previous reporting period, representing 2.0% of the shares outstanding. Since October 2025, short interest has increased by 28.9%.
Days to Cover History
Days to cover for Defiance Quantum ETF (QTUM) currently stands at 2.7 days, up 40.7% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Since October 2025, the figure has increased by 173%. Across the settlements charted above, it has ranged from 1.0 to 2.7 days.