JCI vs NEPH: Correlation
Johnson Controls (JCI) and Nephros, Inc. (NEPH) show a negative relationship: their 3-year correlation of weekly returns is -0.21.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are JCI and NEPH?
Across a 3-year window, the weekly returns of JCI and NEPH correlate at -0.21, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.28 over 1 year against -0.21 over 3. Stretching to 5 years gives -0.07, with an annualized covariance of -395.1 %².
NEPH is close to the least connected end of JCI's tracked universe, ranking #28 of 32. Correlation aside, the last 12 months split them widely, with JCI ahead by 24.5 points (+30.9% versus +6.4%). Risk is not evenly split, since NEPH carries 2.4 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.
JCI vs NEPH: side by side
| JCI (Johnson Controls) | NEPH (Nephros, Inc.) | |
|---|---|---|
| 1-year return | +30.9% | +6.4% |
| 5-year return | +108.2% | -48.4% |
| Volatility (ann.) | 28.1% | 66.5% |
| Beta vs S&P 500 | 0.98 | 0.07 |
| Max drawdown (3Y) | -21.1% | -65.2% |
| Market cap | $86.1B | – |
| P/E (trailing) | 40.1 | 25.4 |
| Dividend yield | 1.11% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | JCI | NEPH |
|---|---|---|
| 2022 | -19.3% | -80.3% |
| 2023 | -7.6% | +198.3% |
| 2024 | +39.8% | -57.5% |
| 2025 | +53.0% | +232.0% |
| 2026 | +19.5% | -11.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are JCI and NEPH good diversifiers for each other?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between JCI and NEPH?
The JCI/NEPH correlation stands at -0.21 on a 3-year window (1 year: -0.28, 5 years: -0.07), computed from weekly returns as of 2026-08-27.
Is NEPH a good diversifier for JCI?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.21 mean?
A reading of -0.21 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/jci-vs-neph.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/jci-vs-neph/)
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Related comparisons
Hubs: JCI correlations · NEPH correlations
