ARKK vs IYZ: Holdings Overlap
ARK · 45 holdings · $6.0B · as of 2026-04-30
IYZiShares U.S. Telecommunications ETF
iShares · 21 holdings · $1.3B · as of 2026-03-31
Holdings snapshots are 30 days apart (ARKK: 2026-04-30, IYZ: 2026-03-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are ARKK and IYZ?
ARK Innovation ETF (ARKK, by ARK) holds 45 positions; iShares U.S. Telecommunications ETF (IYZ, by iShares) holds 21. They have 1 holdings in common, and by portfolio weight the two funds are 3.2% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 3.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 1ARKK holds 45 · IYZ holds 21
- Weight in Shared Holdings
- ARKK 4%·IYZ 3%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in ARKK
44 of 45 positions (95.7% of the fund) are not held by IYZ. Showing the top 30 by weight.
Sector Breakdown
| Sector | ARKK | IYZ |
|---|---|---|
| Communication Services | 10.5% | 61.4% |
| Information Technology | 26.0% | 38.4% |
| Health Care | 26.7% | 0.0% |
| Financials | 16.8% | 0.0% |
| Consumer Discretionary | 13.3% | 0.0% |
| Other Sectors | 4.8% | 0.0% |
| Unclassified | 1.8% | 0.0% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts. “Unclassified” is weight we could not classify (2% of ARKK, 0% of IYZ).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| ARKK | -2.2% | +3.3% | +6.8% | +21.1% | -8.1% | +15.3% | — |
| IYZ | +7.6% | +29.6% | +46.8% | +27.9% | +7.6% | +5.2% | 1.61% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in ARKK vs IYZ →
Shared Holdings(1)
 ROKURoku, Inc., Class A | 4.33% | 3.23% | 3.23% |
|---|
Frequently Asked Questions
How much do ARKK and IYZ overlap?
ARKK and IYZ overlap by 3.2% of portfolio weight. They share 1 holdings (ARKK holds 45 positions and IYZ holds 21), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ARKK and IYZ?
The two portfolios are 3.2% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of ARKK and IYZ?
The largest positions held by both funds are ROKU. Together the top 1 shared positions account for 100% of the total overlap.
What does ARKK own that IYZ doesn't?
44 positions (95.7% of ARKK) are unique to ARKK, led by TSLA, TEM and AMD. In the other direction, 20 positions (96.6% of IYZ) are unique to IYZ.