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HRMY vs PFN: Correlation

How closely do Harmony Biosciences Holdings, Inc. (HRMY) and PIMCO Income Strategy Fund II (PFN) trade together? Their weekly returns over three years give a correlation of 0.51, which is moderate.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.51
moderate
Correlation (1Y)
0.25
last 12 months
Correlation (5Y)
0.34
long-run
Ann. covariance
306.3
%² · weekly, annualized

How correlated are HRMY and PFN?

Over the past 3 years, HRMY and PFN moved with a correlation of 0.51, which is moderate. The past 12 months show a weaker link (0.25) than the 3-year average (0.51). Over 5 years the correlation is 0.34, and the annualized covariance of weekly returns is 306.3 %².

In HRMY's tracked universe of 11 assets, PFN sits right near the top at #2. Twelve-month performance is nearly a tie, at +4.8% for HRMY and +4.1% for PFN. Risk is not evenly split, since HRMY carries 4.0 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.

HRMY vs PFN: side by side

HRMY (Harmony Biosciences Holdings, Inc.)PFN (PIMCO Income Strategy Fund II)
1-year return+4.8%+4.1%
5-year return+7.6%+9.3%
Volatility (ann.)49.1%12.2%
Beta vs S&P 5001.310.40
Max drawdown (3Y)-50.8%-11.1%
Market cap$2.3B$0.7B
P/E (trailing)12.813.4
Dividend yield0.00%12.40%
Sector / categoryUS ListedUS Listed
Lower P/E: HRMY 12.8 vs 13.4Higher yield: PFN 12.40% vs 0.00%Smaller drawdown: PFN -11.1% vs -50.8%Higher 5y return: PFN +9.3% vs +7.6%
-28%0%+13%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). HRMY · PFN

Year-by-year returns

YearHRMYPFN
2022+29.2%-17.6%
2023-41.4%+15.5%
2024+6.5%+15.8%
2025+8.7%+13.1%
2026+6.5%+1.0%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are HRMY and PFN good diversifiers for each other?

Somewhat, no more. With 0.51 correlation, most large moves hit both names, and the diversification benefit stays modest.

FAQ

What is the correlation between HRMY and PFN?

The HRMY/PFN correlation stands at 0.51 on a 3-year window (1 year: 0.25, 5 years: 0.34), computed from weekly returns as of 2026-08-27.

Is PFN a good diversifier for HRMY?

Somewhat, no more. With 0.51 correlation, most large moves hit both names, and the diversification benefit stays modest.

What does a correlation of 0.51 mean?

A reading of 0.51 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/hrmy-vs-pfn.json

HRMY vs PFN: 3-year weekly correlation 0.51HRMY vs PFN0.51

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Related comparisons

Hubs: HRMY correlations · PFN correlations