ARKK vs VBK: Holdings Overlap
ARK · 45 holdings · $6.0B · as of 2026-04-30
VBKVanguard Small-cap Growth Index Fund
Vanguard · 551 holdings · $24.3B · as of 2026-03-31
Holdings snapshots are 30 days apart (ARKK: 2026-04-30, VBK: 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 VBK?
ARK Innovation ETF (ARKK, by ARK) holds 45 positions; Vanguard Small-cap Growth Index Fund (VBK, by Vanguard) holds 551. They have 14 holdings in common, and by portfolio weight the two funds are 4.0% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 4.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 14ARKK holds 45 · VBK holds 551
- Weight in Shared Holdings
- ARKK 31%·VBK 4%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
31 of 45 positions (68.7% of the fund) are not held by VBK. Showing the top 30 by weight.
Only in VBK
537 of 551 positions (95.6% of the fund) are not held by ARKK. Showing the top 30 by weight.
Sector Breakdown
| Sector | ARKK | VBK |
|---|---|---|
| Health Care | 26.7% | 16.1% |
| Information Technology | 26.0% | 21.6% |
| Industrials | 4.8% | 24.6% |
| Financials | 16.8% | 6.1% |
| Consumer Discretionary | 13.3% | 9.9% |
| Other Sectors | 10.5% | 20.6% |
| Unclassified | 1.8% | 0.9% |
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, 1% of VBK).
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% | — |
| VBK | +1.8% | +19.6% | +29.4% | +16.6% | +5.3% | +11.4% | 0.42% |
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 VBK →
Shared Holdings(14)
The top 10 shared positions account for 93% of the overlap, led by NTRA, BWXT and SOFI.
 NTRANatera Inc. COM | 1.17% | 0.88% | 0.88% |
|---|---|---|---|
 BWXTBWX Technologies Inc. COM | 1.00% | 0.62% | 0.62% |
 SOFISofi Technologies Inc COM | 0.54% | 0.68% | 0.54% |
 KTOSKratos Defense & Security Solutions, Inc. COM NEW | 1.05% | 0.43% | 0.43% |
 ROKURoku, Inc., Class A | 4.33% | 0.41% | 0.41% |
 CRCLCircle Internet Group, Inc., Class A | 3.84% | 0.38% | 0.38% |
 TEMTempus AI, Inc., Class A | 5.36% | 0.17% | 0.17% |
 TWSTTwist Bioscience Corporation COM | 3.05% | 0.09% | 0.09% |
 ACHRArcher Aviation, Inc., Class A | 1.55% | 0.09% | 0.09% |
 VCYTVeracyte Inc COM | 0.89% | 0.09% | 0.09% |
 TXG10X Genomics, Inc., Class A | 2.31% | 0.08% | 0.08% |
 BEAMBeam Therapeutics Inc. COM | 3.06% | 0.08% | 0.08% |
 RXRXRecursion Pharmaceuticals, Inc., Class A | 1.16% | 0.05% | 0.05% |
 NTLAIntellia Therapeutics Inc COM | 2.06% | 0.05% | 0.05% |
Frequently Asked Questions
How much do ARKK and VBK overlap?
ARKK and VBK overlap by 4.0% of portfolio weight. They share 14 holdings (ARKK holds 45 positions and VBK holds 551), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ARKK and VBK?
The two portfolios are 4.0% 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 VBK?
The largest positions held by both funds are NTRA, BWXT, SOFI, KTOS and ROKU. Together the top 10 shared positions account for 93% of the total overlap.
What does ARKK own that VBK doesn't?
31 positions (68.7% of ARKK) are unique to ARKK, led by TSLA, AMD and 1CG. In the other direction, 537 positions (95.6% of VBK) are unique to VBK.