QXL vs SERV: Correlation
Measured on weekly returns over the past three years, Quantum X Labs Inc. (QXL) and Serve Robotics Inc. (SERV) carry a correlation of 0.81, a very strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QXL and SERV?
Over the past 3 years, QXL and SERV moved with a correlation of 0.81, which is very strong, meaning they move nearly in lockstep. Lately the two have drifted apart, with the 1-year correlation at 0.49 versus 0.81 over 3 years. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 107312.9 %².
SERV is one of the assets that tracks QXL most closely: it ranks #1 out of the 21 assets we track against QXL. The last year tells two different stories: QXL led by 111.6 percentage points, +53.6% for QXL against -58.0% for SERV. Note the risk asymmetry: QXL runs 3.9 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.
QXL vs SERV: side by side
| QXL (Quantum X Labs Inc.) | SERV (Serve Robotics Inc.) | |
|---|---|---|
| 1-year return | +53.6% | -58.0% |
| 5-year return | +14.0% | n/a |
| Volatility (ann.) | 724.3% | 186.9% |
| Beta vs S&P 500 | -2.23 | 1.18 |
| Max drawdown (3Y) | -96.2% | -92.4% |
| Market cap | $0.1B | $0.4B |
| P/E (trailing) | 13.4 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | QXL | SERV |
|---|---|---|
| 2022 | -78.8% | – |
| 2023 | -80.2% | – |
| 2024 | +1032.7% | – |
| 2025 | -70.1% | -23.1% |
| 2026 | +207.2% | -53.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QXL and SERV good diversifiers for each other?
Not really. At 0.81, the two trade almost as one position, and owning both buys little extra protection.
FAQ
What is the correlation between QXL and SERV?
Using weekly returns as of 2026-08-27: 0.81 over 3 years, with 0.49 over the last year and n/a over 5 years.
Is SERV a good diversifier for QXL?
Not really. At 0.81, the two trade almost as one position, and owning both buys little extra protection.
What does a correlation of 0.81 mean?
A reading of 0.81 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/qxl-vs-serv.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/qxl-vs-serv/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: QXL correlations · SERV correlations
