ARKG vs XBI: holdings overlap, shared companies and scores
As of October 9, 2026, ARKG and XBI overlap 11.5% by weight. ARK Genomic Revolution ETF (ARKG): Genomics and biotech stocks. State Street SPDR S&P Biotech ETF (XBI): U.S. biotech industry stocks.
Updated October 9, 2026
What moved ARKG this week
ARKG fell 5.0% in the week to October 9, 2026. The holdings that moved it most were Twist Bioscience (−15.3%), 10X Genomics (−13.7%) and Tempus AI (−7.4%); Prime Medicine (+33.9%) pushed the other way.
What do ARKG and XBI each hold?
What's inside ARKG: AI 13%.
59% of ARKG is its ten largest holdings.
17% of XBI is its ten largest holdings.
How much do ARKG and XBI overlap? 11.5% by weight
As of October 9, 2026, ARKG and XBI overlap 11.5% by weight.
44% of ARKG is already inside XBI.
13% of XBI is already inside ARKG.
ARKG holds 33 companies and XBI holds 163; 13 are in both.
Computed by ETF Copilot from both funds' holdings rather than quoted from a data provider, and rebuilt nightly.
How does ETF Copilot score ARKG and XBI? 4.0 and 4.7 out of 10
As of October 9, 2026, ETF Copilot scores ARKG 4.0 out of 10 and XBI 4.7 out of 10.
They differ most on Growth: ARKG 8.1 and XBI 9.9.
The five factor scores behind them are set out below, 0–10 and higher is better, ranked against every US equity ETF we track.
| Factor | ARKG | XBI |
|---|---|---|
| Growth | 8.1 | 9.9 |
| Risk | 0.2 | 1.1 |
| Quality | 0.1 | 0.2 |
| Return | 5.2 | 4.9 |
XBI is the cheaper of the two at 0.35% a year
As of October 9, 2026, ARKG charges 0.75% a year and holds $2.1B in assets across 33 positions.
As of October 9, 2026, XBI charges 0.35% a year, yields 0.36% and holds $9.9B in assets across 163 positions.
| Measure | ARKG | XBI |
|---|---|---|
| Expense ratio | 0.75% | 0.35% |
| Dividend yield | — | 0.36% |
| Assets under management | $2.1B | $9.9B |
| Holdings | 33 | 163 |
Expense ratio, dividend yield and assets under management are reported by the fund and refreshed daily. Every other figure on this page is computed by ETF Copilot.
Compare with similar funds
Cite this
ETF Copilot, “ARKG vs XBI holdings overlap and scores”, as of October 9, 2026.
https://etf-copilot.com/compare/arkg-vs-xbi
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