HQH vs PRTA: Correlation
How closely do abrdn Healthcare Investors Shares of Beneficial Interest (HQH) and Prothena Corporation plc (PRTA) trade together? Their weekly returns over three years give a correlation of 0.44, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HQH and PRTA?
Over the past 3 years, HQH and PRTA moved with a correlation of 0.44, which is moderate. The relationship has been stable: the 1-year correlation (0.50) sits close to the 3-year figure. Over 5 years the correlation is 0.33, and the annualized covariance of weekly returns is 560.7 %².
By 3-year correlation, PRTA places #25 of the 36 assets tracked against HQH. Correlation aside, the last 12 months split them widely, with HQH ahead by 53.6 points (+59.8% versus +6.2%). Risk is not evenly split, since PRTA carries 2.7 times the volatility of the other side.
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.
HQH vs PRTA: side by side
| HQH (abrdn Healthcare Investors Shares of Beneficial Interest) | PRTA (Prothena Corporation plc) | |
|---|---|---|
| 1-year return | +59.8% | +6.2% |
| 5-year return | +51.1% | -86.9% |
| Volatility (ann.) | 21.8% | 57.9% |
| Beta vs S&P 500 | 0.83 | 0.93 |
| Max drawdown (3Y) | -21.1% | -91.9% |
| Market cap | – | $0.5B |
| P/E (trailing) | 5.2 | – |
| Dividend yield | 9.62% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | HQH | PRTA |
|---|---|---|
| 2022 | -17.3% | +22.0% |
| 2023 | +1.2% | -39.7% |
| 2024 | +10.2% | -61.9% |
| 2025 | +34.1% | -31.0% |
| 2026 | +33.9% | -4.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HQH and PRTA good diversifiers for each other?
A fair diversifier. At 0.44, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between HQH and PRTA?
Using weekly returns as of 2026-08-27: 0.44 over 3 years, with 0.50 over the last year and 0.33 over 5 years.
Is PRTA a good diversifier for HQH?
A fair diversifier. At 0.44, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.44 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/hqh-vs-prta.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/hqh-vs-prta/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: HQH correlations · PRTA correlations
