QTUM vs WQTM: Which Quantum Computing ETF Is Right for You?
QTUM is the established quantum ETF with $6B in assets and history back to 2018. WQTM is the newer, tighter-mandate alternative from WisdomTree. Same theme, different construction.
QTUM (Defiance Quantum ETF) and WQTM (WisdomTree Quantum Computing Fund) both target quantum computing, but they define the theme differently. QTUM tracks the NYSE Arca Future of Quantum Computing & Machine Learning Index, which includes companies enabling quantum computing alongside machine learning infrastructure, meaning it holds significant semiconductor and AI names alongside pure quantum players. With $6B in assets, 0.40% expense ratio, and a track record since 2018 that includes the full AI boom, QTUM is the default choice for most investors. WQTM launched in October 2025 and tracks the WisdomTree Classiq Quantum Computing Index, co-developed with Classiq (a quantum software company). Its mandate is tighter: companies with direct quantum hardware, software, and enabling technology exposure. At $250M in assets and 0.45% expense ratio, WQTM is smaller but more specifically focused. Investors who want concentrated exposure to companies with direct quantum operations, rather than the broader enabling technology ecosystem, should consider WQTM despite its shorter track record.
Whether the lower-cost fund suits your situation depends on your existing holdings, account type, tax situation, and how you use each fund. This is a cost comparison, not a personalized recommendation.
Both funds trade commission-free at every major brokerage. How the major brokerages compare →
📋 QTUM vs WQTM — Key Facts Side by Side
| Metric | QTUM | WQTM |
|---|---|---|
| Fund Name | Defiance Quantum ETF | WisdomTree Quantum Computing Fund |
| Issuer | Defiance ETFs | WisdomTree |
| Tracks Index | NYSE Arca Future of Quantum Computing & ML | WisdomTree Classiq Quantum Computing Index |
| Expense Ratio | 0.40% ✓ | 0.45% |
| Cost per $10K/yr | $40.00 | $45.00 |
| AUM | $6.3B | $328.6M |
| Holdings | 82 | 45 |
| Inception | 2018 | 2025 |
| 1-Year Return | +50.45% | +2.97% |
| 3-Year Return | +41.78% | — |
| 5-Year Return | +25.42% | — |
| Dividend Yield | 0.71% | — |
| Holdings Overlap | See holdings overlap → | |
| Avg Bid-Ask Spread | 0.01% | 0.03% |
Expense ratio, AUM, and returns updated Jul 22, 2026 from ETF BFF database. Returns are annualised. Not investment advice.
📊 QTUM vs WQTM — Annualised Returns
Annualised returns (trailing, price-based). Past performance does not guarantee future results.
🎯 Which Fund Fits Which Investor?
- want the lowest fees: saves ~$5/yr per $10K vs WQTM
- want broader diversification (82 holdings vs 45)
- already use WisdomTree and prefer staying within one fund family
💰 What the Fee Difference Actually Costs
Adjust the numbers for your situation. This models each fund's expense ratio compounding against your balance over time.
Assumes a constant annual return reinvested, with each fund's expense ratio deducted yearly. Illustrative only; actual returns vary. Past performance does not guarantee future results.
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❓ QTUM vs WQTM — Frequently Asked Questions
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