ECX vs GJT: Correlation
Measured on weekly returns over the past three years, ECARX Holdings Inc. - Class A (ECX) and Synthetic Fixed-Income Securities, Inc. Floating Rate (GJT) carry a correlation of 0.22, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ECX and GJT?
Across a 3-year window, the weekly returns of ECX and GJT correlate at 0.22, weak. The link has tightened recently: the 1-year correlation (0.38) runs above the 3-year figure (0.22). Stretching to 5 years gives 0.14, with an annualized covariance of 152.5 %².
Among the 12 assets we track against ECX, GJT sits near the bottom by co-movement, at rank #9. The last year tells two different stories: GJT led by 41.7 percentage points, -33.1% for ECX against +8.6% for GJT. Risk is not evenly split, since ECX carries 12.7 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.
ECX vs GJT: side by side
| ECX (ECARX Holdings Inc. - Class A) | GJT (Synthetic Fixed-Income Securities, Inc. Floating Rate) | |
|---|---|---|
| 1-year return | -33.1% | +8.6% |
| 5-year return | -88.9% | +44.3% |
| Volatility (ann.) | 93.0% | 7.3% |
| Beta vs S&P 500 | 1.61 | -0.02 |
| Max drawdown (3Y) | -82.6% | -5.3% |
| Market cap | $0.4B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ECX | GJT |
|---|---|---|
| 2022 | -18.1% | +4.5% |
| 2023 | -60.5% | +13.6% |
| 2024 | -33.2% | +10.6% |
| 2025 | -18.5% | +6.2% |
| 2026 | -37.8% | +3.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ECX and GJT good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.22 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between ECX and GJT?
As of 2026-08-27, the correlation of weekly returns between ECX and GJT is 0.22 over 3 years, 0.38 over 1 year and 0.14 over 5 years.
Is GJT a good diversifier for ECX?
Yes, to a useful degree: a correlation of 0.22 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.22 mean?
On the −1 to +1 scale, 0.22 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ecx-vs-gjt.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ecx-vs-gjt/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ECX correlations · GJT correlations
