BRT vs QUCY: Correlation
How closely do BRT Apartments Corp. (MD) (BRT) and Quantum Cyber N.V. (QUCY) trade together? Their weekly returns over three years give a correlation of -0.17, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BRT and QUCY?
On 3 years of weekly data the BRT/QUCY correlation comes out at -0.17, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.15 lands near the 3-year figure. The 5-year figure is -0.11, and annualized covariance runs at -7343.0 %².
Out of 14 assets tracked against BRT, QUCY lands near the bottom at #12. The trailing year gives BRT the advantage: -3.2% versus -9.3%, a 6.1-point spread. Risk is not evenly split, since QUCY carries 76.7 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.
BRT vs QUCY: side by side
| BRT (BRT Apartments Corp. (MD)) | QUCY (Quantum Cyber N.V.) | |
|---|---|---|
| 1-year return | -3.2% | -9.3% |
| 5-year return | -1.1% | -94.4% |
| Volatility (ann.) | 24.0% | 1840.9% |
| Beta vs S&P 500 | 0.68 | 3.76 |
| Max drawdown (3Y) | -27.6% | -95.9% |
| Market cap | $0.3B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 5.48% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BRT | QUCY |
|---|---|---|
| 2022 | -14.4% | -31.7% |
| 2023 | -0.0% | -83.7% |
| 2024 | +2.7% | +272.4% |
| 2025 | -13.3% | -74.1% |
| 2026 | +1.1% | +31.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BRT and QUCY good diversifiers for each other?
Yes: at -0.17, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BRT and QUCY?
As of 2026-08-27, the correlation of weekly returns between BRT and QUCY is -0.17 over 3 years, -0.15 over 1 year and -0.11 over 5 years.
Is QUCY a good diversifier for BRT?
Yes: at -0.17, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.17 mean?
A reading of -0.17 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/brt-vs-qucy.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/brt-vs-qucy/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BRT correlations · QUCY correlations
