CDTG vs CHGG: Correlation
Measured on weekly returns over the past three years, CDT Environmental Technology Investment Holdings Limited (CDTG) and Chegg, Inc. (CHGG) carry a correlation of -0.20, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CDTG and CHGG?
Over the past 3 years, CDTG and CHGG moved with a correlation of -0.20, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.21) sits close to the 3-year figure. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -3385.8 %².
Within CDTG's tracked universe of 34 assets, CHGG comes in at #12 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months CHGG outperformed by 53.3 percentage points (-92.6% for CDTG against -39.3% for CHGG). Risk is not evenly split, since CDTG carries 1.6 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.
CDTG vs CHGG: side by side
| CDTG (CDT Environmental Technology Investment Holdings Limited) | CHGG (Chegg, Inc.) | |
|---|---|---|
| 1-year return | -92.6% | -39.3% |
| 5-year return | n/a | -99.0% |
| Volatility (ann.) | 160.6% | 97.4% |
| Beta vs S&P 500 | 0.42 | 1.77 |
| Max drawdown (3Y) | -99.2% | -96.1% |
| Market cap | – | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CDTG | CHGG |
|---|---|---|
| 2022 | – | -17.7% |
| 2023 | – | -55.0% |
| 2024 | – | -85.8% |
| 2025 | -92.2% | -42.2% |
| 2026 | -87.0% | -13.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CDTG and CHGG good diversifiers for each other?
Yes. With a correlation of -0.20, CDTG and CHGG have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between CDTG and CHGG?
Using weekly returns as of 2026-08-27: -0.20 over 3 years, with -0.21 over the last year and n/a over 5 years.
Is CHGG a good diversifier for CDTG?
Yes. With a correlation of -0.20, CDTG and CHGG have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.20 mean?
A reading of -0.20 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/cdtg-vs-chgg.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/cdtg-vs-chgg/)
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Related comparisons
Hubs: CDTG correlations · CHGG correlations
