ETF comparison
QTUM vs ROBO
Both Thematic.
Defiance Quantum ETF · Robo Global Robotics and Automation Index ETF
Holdings overlap
10 positions appear in both funds. Buying equal dollars of QTUM and ROBO would leave roughly 10.8% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
QTUM is 55 bps cheaper than ROBO. On a $100,000 position that's about $550/yr more in fees for ROBO.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with QTUM vs ROBO.
Top shared holdings
10 shared in total| # | Holding | In QTUM | In ROBO | Overlap |
|---|---|---|---|---|
| 1 | Teradyne Inc | 1.48% | 1.67% | 1.48% |
| 2 | ABB Ltd | 1.16% | 1.33% | 1.16% |
| 3 | Infineon Technologies AG | 1.14% | 1.14% | 1.14% |
| 4 | Mitsubishi Electric Corp | 1.11% | 1.28% | 1.11% |
| 5 | NVIDIA Corp | 1.06% | 1.31% | 1.06% |
| 6 | Cadence Design Systems Inc | 1.04% | 1.19% | 1.04% |
| 7 | Hon Hai Precision Industry Co | 1.01% | 1.47% | 1.01% |
| 8 | Microchip Technology Inc | 1.10% | 0.97% | 0.97% |
| 9 | QUALCOMM Inc | 1.03% | 0.92% | 0.92% |
| 10 | Coherent Corp | 1.18% | 0.88% | 0.88% |
Only in QTUM
76 total- Arqit Quantum Inc 2.41%
- Horizon Quantum Holdings LTD 2.38%
- Quantinuum Inc 1.57%
- Astera Labs Inc 1.55%
- Applied Materials Inc 1.55%
- KLA Corp 1.50%
- MKS Inc 1.50%
- Onto Innovation Inc 1.49%
- Lam Research Corp 1.43%
- Nebius Group NV 1.39%
Only in ROBO
70 total- AMBARELLA, INC. 2.09%
- ILLUMINA, INC. 1.92%
- ROCKWELL AUTOMATION, INC. 1.90%
- FANUC CORPORATION 1.74%
- GEA Group Aktiengesellschaft 1.72%
- Yokogawa Electric Corporation 1.71%
- EMERSON ELECTRIC CO. 1.67%
- JBT MAREL CORPORATION 1.63%
- NOVANTA INC. 1.62%
- SMC CORPORATION 1.62%
Related comparisons
More comparisons with QTUM
- QTUM vs ARKQ · ARK Autonomous Technology & Robotics ETF 10.5%
- QTUM vs ARKW · ARK Next Generation Technology ETF 10.5%
- QTUM vs ARKK · ARK Innovation ETF 9.8%
- QTUM vs GRID · First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund 9.7%
- QTUM vs KOMP · State Street SPDR S&P Kensho New Economies Composite ETF 8.3%
- QTUM vs FDN · First Trust Dow Jones Internet Index Fund 7.9%
More comparisons with ROBO
- ROBO vs ARKQ · ARK Autonomous Technology & Robotics ETF 10.5%
- ROBO vs GRID · First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund 8.9%
- ROBO vs AIQ · Global X Artificial Intelligence & Technology ETF 8.5%
- ROBO vs ARKK · ARK Innovation ETF 5.6%
- ROBO vs VGT · Vanguard Information Technology Index Fund ETF Shares 4.4%
- ROBO vs XLK · State Street Technology Select Sector SPDR ETF 4.4%
Percentages are holdings overlap with the named fund.
Open QTUM or ROBO at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.