GIGM vs POST: Correlation
How closely do GigaMedia Limited (GIGM) and Post Holdings, Inc. (POST) trade together? Their weekly returns over three years give a correlation of -0.20, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GIGM and POST?
Over the past 3 years, GIGM and POST moved with a correlation of -0.20, which is negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.22 over 1 year against -0.20 over 3. Over 5 years the correlation is -0.08, and the annualized covariance of weekly returns is -117.6 %².
Among the 10 assets we track against GIGM, POST sits near the bottom by co-movement, at rank #9. The last year tells two different stories: GIGM led by 19.9 percentage points, -8.2% for GIGM against -28.1% for POST.
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.
GIGM vs POST: side by side
| GIGM (GigaMedia Limited) | POST (Post Holdings, Inc.) | |
|---|---|---|
| 1-year return | -8.2% | -28.1% |
| 5-year return | -44.2% | +11.2% |
| Volatility (ann.) | 25.6% | 23.0% |
| Beta vs S&P 500 | 0.27 | 0.11 |
| Max drawdown (3Y) | -29.6% | -36.9% |
| Market cap | – | $3.7B |
| P/E (trailing) | – | 14.9 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GIGM | POST |
|---|---|---|
| 2022 | -46.2% | +22.3% |
| 2023 | +14.9% | -2.4% |
| 2024 | +11.5% | +30.0% |
| 2025 | -1.9% | -13.5% |
| 2026 | -4.6% | -17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GIGM and POST good diversifiers for each other?
By historical standards, yes. A correlation of -0.20 means the two rarely move for the same reasons.
FAQ
What is the correlation between GIGM and POST?
As of 2026-08-27, the correlation of weekly returns between GIGM and POST is -0.20 over 3 years, -0.22 over 1 year and -0.08 over 5 years.
Is POST a good diversifier for GIGM?
By historical standards, yes. A correlation of -0.20 means the two rarely move for the same reasons.
What does a correlation of -0.20 mean?
On the −1 to +1 scale, -0.20 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.
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Related comparisons
Hubs: GIGM correlations · POST correlations
