ETF comparison
QTUM vs XLK
Thematic vs Technology.
Defiance Quantum ETF · State Street Technology Select Sector SPDR ETF
Holdings overlap
25 positions appear in both funds. Buying equal dollars of QTUM and XLK would leave roughly 23.2% 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
XLK is 32 bps cheaper than QTUM. On a $100,000 position that's about $320/yr more in fees for QTUM.
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 XLK.
Top shared holdings
25 shared in total| # | Holding | In QTUM | In XLK | Overlap |
|---|---|---|---|---|
| 1 | Applied Materials Inc | 1.55% | 3.20% | 1.55% |
| 2 | KLA Corp | 1.50% | 2.20% | 1.50% |
| 3 | Lam Research Corp | 1.43% | 3.02% | 1.43% |
| 4 | Intel Corp | 1.39% | 3.68% | 1.39% |
| 5 | Micron Technology Inc | 1.37% | 5.42% | 1.37% |
| 6 | Advanced Micro Devices Inc | 1.36% | 5.28% | 1.36% |
| 7 | Marvell Technology Inc | 1.25% | 1.45% | 1.25% |
| 8 | Texas Instruments Inc | 1.12% | 1.51% | 1.12% |
| 9 | IBM | 1.10% | 1.47% | 1.10% |
| 10 | Broadcom Inc | 1.08% | 5.41% | 1.08% |
| 11 | Analog Devices Inc | 1.07% | 1.08% | 1.07% |
| 12 | NVIDIA Corp | 1.06% | 14.65% | 1.06% |
Only in QTUM
61 total- Arqit Quantum Inc 2.41%
- Horizon Quantum Holdings LTD 2.38%
- Quantinuum Inc 1.57%
- Astera Labs Inc 1.55%
- MKS Inc 1.50%
- Onto Innovation Inc 1.49%
- Nebius Group NV 1.39%
- BTQ Technologies Corp 1.37%
- Tokyo Electron Ltd 1.31%
- Global Unichip Corp 1.26%
Only in XLK
49 total- Apple Inc 12.85%
- Sandisk Corp 1.88%
- Palo Alto Networks Inc 1.54%
- Western Digital Corp 1.23%
- Amphenol Corp 1.21%
- Seagate Technology Holdings PLC 1.21%
- Corning Inc 1.11%
- Crowdstrike Holdings Inc 1.08%
- Arista Networks Inc 0.98%
- AppLovin Corp 0.77%
Related comparisons
More comparisons with QTUM
- QTUM vs SKYY · First Trust Cloud Computing ETF 12.7%
- QTUM vs ROBO · Robo Global Robotics and Automation Index ETF 10.8%
- 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%
More comparisons with XLK
- XLK vs IGV · iShares Expanded Tech-Software Sector ETF 19.6%
- XLK vs XSD · State Street SPDR S&P Semiconductor ETF 19.0%
- XLK vs CIBR · First Trust NASDAQ Cybersecurity ETF 16.6%
- XLK vs SKYY · First Trust Cloud Computing ETF 15.9%
- XLK vs ARKQ · ARK Autonomous Technology & Robotics ETF 12.9%
- XLK vs ARKW · ARK Next Generation Technology ETF 12.4%
Percentages are holdings overlap with the named fund.
Open QTUM or XLK 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.