PairBook
HomeAIFF › AIFF vs HRZN

AIFF vs HRZN: Correlation

How closely do Firefly Neuroscience, Inc. (AIFF) and Horizon Technology Finance Corporation (HRZN) trade together? Their weekly returns over three years give a correlation of -0.24, which is negative.

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

Correlation (3Y)
-0.24
negative
Correlation (1Y)
-0.65
last 12 months
Correlation (5Y)
-0.18
long-run
Ann. covariance
-1479.7
%² · weekly, annualized

How correlated are AIFF and HRZN?

On 3 years of weekly data the AIFF/HRZN correlation comes out at -0.24, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.65) runs below the 3-year figure (-0.24). The 5-year figure is -0.18, and annualized covariance runs at -1479.7 %².

Among the 15 assets we track against AIFF, HRZN sits near the bottom by co-movement, at rank #15. Correlation aside, the last 12 months split them widely, with HRZN ahead by 44.3 points (-58.9% versus -14.6%). Note the risk asymmetry: AIFF runs 5.8 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.

AIFF vs HRZN: side by side

AIFF (Firefly Neuroscience, Inc.)HRZN (Horizon Technology Finance Corporation)
1-year return-58.9%-14.6%
5-year return-98.8%-44.7%
Volatility (ann.)190.4%32.9%
Beta vs S&P 5001.780.55
Max drawdown (3Y)-95.9%-59.4%
Market cap$0.3B
P/E (trailing)13.0
Dividend yield0.00%23.38%
Sector / categoryUS ListedUS Listed
Higher yield: HRZN 23.38% vs 0.00%Smaller drawdown: HRZN -59.4% vs -95.9%Higher 5y return: HRZN -44.7% vs -98.8%
-75%0%+6%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. AIFF · HRZN

Year-by-year returns

YearAIFFHRZN
2022-90.3%-19.7%
2023-64.8%+27.0%
2024-47.7%-22.9%
2025-66.8%-14.4%
2026+22.7%-14.7%

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

Are AIFF and HRZN good diversifiers for each other?

By historical standards, yes. A correlation of -0.24 means the two rarely move for the same reasons.

FAQ

What is the correlation between AIFF and HRZN?

Using weekly returns as of 2026-08-27: -0.24 over 3 years, with -0.65 over the last year and -0.18 over 5 years.

Is HRZN a good diversifier for AIFF?

By historical standards, yes. A correlation of -0.24 means the two rarely move for the same reasons.

What does a correlation of -0.24 mean?

A reading of -0.24 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/aiff-vs-hrzn.json

AIFF vs HRZN: 3-year weekly correlation -0.24AIFF vs HRZN-0.24

Markdown for the live badge, attribution link included:

[![AIFF vs HRZN correlation](https://www.pairbook.io/api/v1/badge/aiff-vs-hrzn.svg)](https://www.pairbook.io/pair/aiff-vs-hrzn/)

No key needed, free to use. Full endpoint list in the API documentation.

Related comparisons

Hubs: AIFF correlations · HRZN correlations