ARKK vs SOUN: Correlation
ARK Innovation ETF (ARKK) and SoundHound AI, Inc. (SOUN) show a moderate relationship: their 3-year correlation of weekly returns is 0.50.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ARKK and SOUN?
On 3 years of weekly data the ARKK/SOUN correlation comes out at 0.50, moderate. The past 12 months show a tighter link (0.76) than the 3-year average (0.50). The 5-year figure is 0.33, and annualized covariance runs at 2227.6 %².
Within ARKK's tracked universe of 122 assets, SOUN comes in at #66 by 3-year correlation. Correlation aside, the last 12 months split them widely, with ARKK ahead by 55.1 points (+15.7% versus -39.4%). Note the risk asymmetry: SOUN runs 3.0 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
ARKK vs SOUN: side by side
| ARKK (ARK Innovation ETF) | SOUN (SoundHound AI, Inc.) | |
|---|---|---|
| 1-year return | +15.7% | -39.4% |
| 5-year return | -27.7% | -3.7% |
| Volatility (ann.) | 38.8% | 114.8% |
| Beta vs S&P 500 | 2.07 | 3.35 |
| Max drawdown (3Y) | -39.6% | -76.5% |
| Market cap | – | $3.2B |
| P/E (trailing) | – | – |
| Dividend yield | – | 0.00% |
| Sector / category | ETF · Thematic | US Listed |
Year-by-year returns
| Year | ARKK | SOUN |
|---|---|---|
| 2022 | -67.0% | – |
| 2023 | +69.0% | +19.8% |
| 2024 | +8.4% | +835.8% |
| 2025 | +35.5% | -49.7% |
| 2026 | +13.6% | -27.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ARKK and SOUN good diversifiers for each other?
To a limited degree. At 0.50 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between ARKK and SOUN?
As of 2026-08-27, the correlation of weekly returns between ARKK and SOUN is 0.50 over 3 years, 0.76 over 1 year and 0.33 over 5 years.
Is SOUN a good diversifier for ARKK?
To a limited degree. At 0.50 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.50 mean?
A reading of 0.50 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/arkk-vs-soun.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/arkk-vs-soun/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ARKK correlations · SOUN correlations
