QTUM vs. QQQ: Does the Quantum-Computing ETF Beat Just Buying the Nasdaq-100?
The post QTUM vs. QQQ: Does the Quantum-Computing ETF Beat Just Buying the Nasdaq-100? appeared first on 24/7 Wall St..
Both Defiance Quantum ETF (NYSEARCA:QTUM) and Invesco QQQ Trust (NASDAQ:QQQ) get pitched as ways to own the future of computing, but they are not interchangeable. QTUM is marketed around quantum, yet its mandate is broader, advanced computing and machine learning, and it shares meaningful names with QQQ. The decision a buyer is actually making is whether to layer a thematic, equal-weighted basket on top of a Nasdaq-100 position that already owns much of the same AI infrastructure.
What each fund is actually betting on
QQQ tracks the Nasdaq-100 and is structured as a modified market-cap index. That makes it a concentrated bet on mega-cap platform dominance. As of March 31, 2026, the top 10 names account for ~45% of net assets, with NVIDIA at 8.14%, Microsoft at 4.74%, and Apple at 7.10%. The implicit thesis is that hyperscaler capex, cloud monetization, and consumer tech earnings continue to compound.
QTUM tracks the BlueStar Quantum Computing and Machine Learning Index using an equal-weight construction. The label suggests pure-play quantum exposure, but the basket spreads across semiconductor designers, cloud and AI infrastructure providers, and small-cap quantum specialists. Equal weighting tilts the portfolio toward small and mid-cap pure plays at rebalance, while leaving room for names like NVIDIA and Alphabet that also sit inside QQQ. The bet is that a wider net across the “advanced computing” stack outperforms a cap-weighted Nasdaq when smaller names re-rate.
Where the difference shows up
The recent quantum hype cycle illustrates the gap. QTUM is up 47.39% year to date through June 12, 2026, against 17.42% for QQQ. Over the past year, QTUM has returned 82.93%, versus 35.17% for QQQ.
The longer window narrows the spread. QTUM has gained 245% over the past five years, while QQQ has gained 118%. That five-year window includes the 2022 rate shock, when equal-weighted small- and mid-cap technology baskets sold off more sharply than the cap-weighted Nasdaq. Thematic outperformance has been concentrated in specific pockets of the quantum and AI rally, with deeper drawdowns in between.
The practical comparison
| Factor | QTUM | QQQ |
|---|---|---|
| Index | BlueStar Quantum Computing & ML | Nasdaq-100 |
| Weighting | Equal weight | Modified market cap |
| Net expense ratio | 0.40% | 0.18% |
| Top 10 concentration | 22.38% | 52.06% |
| YTD 2026 return | 47.39% | 17.42% |
| 5-year return | 245% | 118% |
Overlap shapes this comparison more than anything else. NVIDIA and Alphabet are in both funds, which means pairing QTUM with QQQ effectively doubles exposure to a small cluster of AI infrastructure names rather than adding meaningful diversification.
The verdict
QQQ serves as a core large-cap technology allocation, offering deep liquidity, a lower expense ratio, and exposure to the platforms driving AI capex. QTUM serves as a thematic satellite for investors seeking equal-weighted access to a broader advanced computing universe and willing to accept sharper drawdowns and the 0.40% fee. The calculus shifts if quantum hardware moves from research milestones to recurring revenue, a transition that would make the small-cap pure plays inside QTUM far more consequential than they are today, especially for anyone tracking thematic breadth or early-stage tech cycles.
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The post QTUM vs. QQQ: Does the Quantum-Computing ETF Beat Just Buying the Nasdaq-100? appeared first on 24/7 Wall St..
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