ECOR vs MRCY: Correlation
electroCore, Inc. (ECOR) and Mercury Systems Inc (MRCY) show a moderate relationship: their 3-year correlation of weekly returns is 0.39.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ECOR and MRCY?
On 3 years of weekly data the ECOR/MRCY correlation comes out at 0.39, moderate. The past 12 months show a tighter link (0.61) than the 3-year average (0.39). The 5-year figure is 0.26, and annualized covariance runs at 1584.1 %².
Among the 12 assets we track against ECOR, MRCY ranks #5 by 3-year correlation. The last year tells two different stories: ECOR led by 42.2 percentage points, +75.0% for ECOR against +32.8% for MRCY. Risk is not evenly split, since ECOR carries 1.7 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.
ECOR vs MRCY: side by side
| ECOR (electroCore, Inc.) | MRCY (Mercury Systems Inc) | |
|---|---|---|
| 1-year return | +75.0% | +32.8% |
| 5-year return | -37.8% | +79.4% |
| Volatility (ann.) | 83.7% | 48.8% |
| Beta vs S&P 500 | 1.73 | 1.23 |
| Max drawdown (3Y) | -77.7% | -35.0% |
| Market cap | $0.1B | $5.4B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ECOR | MRCY |
|---|---|---|
| 2022 | -55.9% | -18.7% |
| 2023 | +54.4% | -18.3% |
| 2024 | +172.3% | +14.8% |
| 2025 | -72.3% | +73.8% |
| 2026 | +116.5% | +23.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ECOR and MRCY good diversifiers for each other?
A fair diversifier. At 0.39, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ECOR and MRCY?
The ECOR/MRCY correlation stands at 0.39 on a 3-year window (1 year: 0.61, 5 years: 0.26), computed from weekly returns as of 2026-08-27.
Is MRCY a good diversifier for ECOR?
A fair diversifier. At 0.39, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.39 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ecor-vs-mrcy.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ecor-vs-mrcy/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ECOR correlations · MRCY correlations
