PACK vs SIGA: Correlation
Ranpak Holdings Corp (PACK) and SIGA Technologies Inc. (SIGA) show a moderate relationship: their 3-year correlation of weekly returns is 0.43.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PACK and SIGA?
Across a 3-year window, the weekly returns of PACK and SIGA correlate at 0.43, moderate. The relationship has been stable: the 1-year correlation (0.39) sits close to the 3-year figure. Stretching to 5 years gives 0.25, with an annualized covariance of 2079.5 %².
By 3-year correlation, SIGA places #7 of the 14 assets tracked against PACK. Their recent paths diverged sharply: over the last 12 months PACK outperformed by 51.2 percentage points (-6.9% for PACK against -58.1% for SIGA).
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.
PACK vs SIGA: side by side
| PACK (Ranpak Holdings Corp) | SIGA (SIGA Technologies Inc.) | |
|---|---|---|
| 1-year return | -6.9% | -58.1% |
| 5-year return | -83.7% | -27.3% |
| Volatility (ann.) | 75.3% | 64.1% |
| Beta vs S&P 500 | 1.81 | 1.22 |
| Max drawdown (3Y) | -64.5% | -70.1% |
| Market cap | $0.4B | $0.2B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PACK | SIGA |
|---|---|---|
| 2022 | -84.6% | +4.2% |
| 2023 | +0.9% | -17.6% |
| 2024 | +18.2% | +15.2% |
| 2025 | -21.4% | +12.3% |
| 2026 | -7.2% | -43.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PACK and SIGA good diversifiers for each other?
Reasonably. At 0.43, PACK and SIGA keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between PACK and SIGA?
As of 2026-08-27, the correlation of weekly returns between PACK and SIGA is 0.43 over 3 years, 0.39 over 1 year and 0.25 over 5 years.
Is SIGA a good diversifier for PACK?
Reasonably. At 0.43, PACK and SIGA keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.43 mean?
On the −1 to +1 scale, 0.43 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/pack-vs-siga.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/pack-vs-siga/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: PACK correlations · SIGA correlations
