BALL vs QUCY: Correlation
How closely do Ball Corporation (BALL) and Quantum Cyber N.V. (QUCY) 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 BALL and QUCY?
Over the past 3 years, BALL and QUCY moved with a correlation of -0.20, which is negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.22 lands near the 3-year figure. Over 5 years the correlation is -0.13, and the annualized covariance of weekly returns is -10005.4 %².
QUCY is close to the least connected end of BALL's tracked universe, ranking #37 of 41. The last year tells two different stories: BALL led by 32.2 percentage points, +22.9% for BALL against -9.3% for QUCY. Note the risk asymmetry: QUCY runs 68.4 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.
BALL vs QUCY: side by side
| BALL (Ball Corporation) | QUCY (Quantum Cyber N.V.) | |
|---|---|---|
| 1-year return | +22.9% | -9.3% |
| 5-year return | -29.3% | -94.4% |
| Volatility (ann.) | 26.9% | 1840.9% |
| Beta vs S&P 500 | 0.43 | 3.76 |
| Max drawdown (3Y) | -35.6% | -95.9% |
| Market cap | $16.8B | $0.1B |
| P/E (trailing) | 18.4 | – |
| Dividend yield | 1.25% | 0.00% |
| Sector / category | Materials | US Listed |
Year-by-year returns
| Year | BALL | QUCY |
|---|---|---|
| 2022 | -46.2% | -31.7% |
| 2023 | +14.1% | -83.7% |
| 2024 | -3.0% | +272.4% |
| 2025 | -2.4% | -74.1% |
| 2026 | +20.4% | +31.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BALL and QUCY good diversifiers for each other?
Yes. With a correlation of -0.20, BALL and QUCY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BALL and QUCY?
Using weekly returns as of 2026-08-27: -0.20 over 3 years, with -0.22 over the last year and -0.13 over 5 years.
Is QUCY a good diversifier for BALL?
Yes. With a correlation of -0.20, BALL and QUCY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.20 mean?
A reading of -0.20 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
$ curl https://www.pairbook.io/api/v1/pairs/ball-vs-qucy.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ball-vs-qucy/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BALL correlations · QUCY correlations
