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ETF comparison

ARKF vs QTUM

Both Thematic.

ARK Blockchain & Fintech Innovation ETF · Defiance Quantum ETF

Holdings overlap

Weighted by ISIN/CUSIP
4.5 %

5 positions appear in both funds. Buying equal dollars of ARKF and QTUM would leave roughly 4.5% of each dollar exposed to the same underlying securities.

ARKF unmatched 92.5% Shared 4.5% QTUM unmatched 94.8%

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.

In ARKF only
33 positions
Shared
5 positions
In QTUM only
81 positions

Side by side

ARKF

ARK Blockchain & Fintech Innovation ETF

ARK · Thematic

44 composite / 100
Expense ratio
0.75%
Net assets
$830.9M
TTM yield
0.10%
Top-10 conc.
54.7%
QTUM

Defiance Quantum ETF

Defiance · Thematic

75 composite / 100
Expense ratio
0.40%
Net assets
$5.64B
TTM yield
1.03%
Top-10 conc.
16.9%

Sub-score comparison

25
Cost
60
78
Tax efficiency
76
53
Liquidity
89
36
Concentration
90
—
Tracking quality
—
ARKF sub-score QTUM

Tracking quality isn't part of the composite — see what we don't score for why.

Cost difference

QTUM is 35 bps cheaper than ARKF. On a $100,000 position that's about $350/yr more in fees for ARKF.

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 ARKF vs QTUM.

Top shared holdings

5 shared in total
# Holding In ARKF In QTUM Overlap
1 ADVANCED MICRO DEVICES INC 3.51% 1.36% 1.36%
2 AMAZON.COM INC 4.35% 1.06% 1.06%
3 NVIDIA CORP 2.55% 1.06% 1.06%
4 PALANTIR TECHNOLOGIES INC 4.23% 0.95% 0.95%
5 ALIBABA GROUP HOLDING LTD 0.08% 0.88% 0.08%

Only in ARKF

33 total
  • SHOPIFY INC 9.24%
  • BLOCK INC 6.64%
  • ARK 21SHARES BITCOIN ETF 6.24%
  • ROBINHOOD MARKETS INC 5.36%
  • COINBASE GLOBAL INC 5.25%
  • TOAST INC 5.13%
  • CIRCLE INTERNET GROUP INC 4.78%
  • META PLATFORMS INC 3.50%
  • MERCADOLIBRE INC 3.48%
  • SOFI TECHNOLOGIES INC 2.65%

Only in QTUM

81 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%
  • Teradyne Inc 1.48%
  • Lam Research Corp 1.43%

Percentages are holdings overlap with the named fund.

Open ARKF or QTUM 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.