ATER vs CIIT: Correlation
Measured on weekly returns over the past three years, Aterian, Inc. (ATER) and Tianci International, Inc. (CIIT) carry a correlation of -0.42, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ATER and CIIT?
Across a 3-year window, the weekly returns of ATER and CIIT correlate at -0.42, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.63 versus -0.42 over 3 years. Stretching to 5 years gives -0.27, with an annualized covariance of -25608.4 %².
CIIT is close to the least connected end of ATER's tracked universe, ranking #8 of 10. The last year tells two different stories: CIIT led by 26.7 percentage points, -61.2% for ATER against -34.5% for CIIT. Risk is not evenly split, since CIIT carries 7.4 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.
ATER vs CIIT: side by side
| ATER (Aterian, Inc.) | CIIT (Tianci International, Inc.) | |
|---|---|---|
| 1-year return | -61.2% | -34.5% |
| 5-year return | -99.5% | -77.6% |
| Volatility (ann.) | 90.5% | 673.6% |
| Beta vs S&P 500 | 1.58 | -2.24 |
| Max drawdown (3Y) | -94.0% | -99.2% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ATER | CIIT |
|---|---|---|
| 2022 | -81.3% | +36.4% |
| 2023 | -54.7% | -44.8% |
| 2024 | -42.7% | +383.1% |
| 2025 | -71.0% | -91.7% |
| 2026 | -43.6% | +41.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ATER and CIIT good diversifiers for each other?
Yes: at -0.42, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ATER and CIIT?
Using weekly returns as of 2026-08-27: -0.42 over 3 years, with -0.63 over the last year and -0.27 over 5 years.
Is CIIT a good diversifier for ATER?
Yes: at -0.42, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.42 mean?
A reading of -0.42 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/ater-vs-ciit.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ater-vs-ciit/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ATER correlations · CIIT correlations
