ARKK vs CERT: Correlation
ARK Innovation ETF (ARKK) and Certara, Inc. (CERT) show a moderate relationship: their 3-year correlation of weekly returns is 0.46.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ARKK and CERT?
Over the past 3 years, ARKK and CERT moved with a correlation of 0.46, which is moderate. The past 12 months show a tighter link (0.58) than the 3-year average (0.46). Over 5 years the correlation is 0.53, and the annualized covariance of weekly returns is 1015.1 %².
Within ARKK's tracked universe of 122 assets, CERT comes in at #85 by 3-year correlation. The last year tells two different stories: ARKK led by 39.0 percentage points, +15.7% for ARKK against -23.3% for CERT.
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 CERT: side by side
| ARKK (ARK Innovation ETF) | CERT (Certara, Inc.) | |
|---|---|---|
| 1-year return | +15.7% | -23.3% |
| 5-year return | -27.7% | -74.4% |
| Volatility (ann.) | 38.8% | 56.7% |
| Beta vs S&P 500 | 2.07 | 1.49 |
| Max drawdown (3Y) | -39.6% | -77.0% |
| Market cap | – | $1.3B |
| P/E (trailing) | – | – |
| Dividend yield | – | 0.00% |
| Sector / category | ETF · Thematic | US Listed |
Year-by-year returns
| Year | ARKK | CERT |
|---|---|---|
| 2022 | -67.0% | -43.5% |
| 2023 | +69.0% | +9.5% |
| 2024 | +8.4% | -39.5% |
| 2025 | +35.5% | -17.3% |
| 2026 | +13.6% | -4.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ARKK and CERT good diversifiers for each other?
Reasonably. At 0.46, ARKK and CERT keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ARKK and CERT?
Using weekly returns as of 2026-08-27: 0.46 over 3 years, with 0.58 over the last year and 0.53 over 5 years.
Is CERT a good diversifier for ARKK?
Reasonably. At 0.46, ARKK and CERT keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.46 mean?
A reading of 0.46 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-cert.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/arkk-vs-cert/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ARKK correlations · CERT correlations
