BQ vs IDT: Correlation
How closely do Boqii Holding Limited Class A (BQ) and IDT Corporation (IDT) trade together? Their weekly returns over three years give a correlation of -0.36, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BQ and IDT?
Across a 3-year window, the weekly returns of BQ and IDT correlate at -0.36, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.67) than the 3-year average (-0.36). Stretching to 5 years gives -0.17, with an annualized covariance of -3380.4 %².
Among the 17 assets we track against BQ, IDT sits near the bottom by co-movement, at rank #15. Correlation aside, the last 12 months split them widely, with IDT ahead by 76.0 points (-66.9% versus +9.1%). One caveat on sizing: BQ is 8.1 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
BQ vs IDT: side by side
| BQ (Boqii Holding Limited Class A) | IDT (IDT Corporation) | |
|---|---|---|
| 1-year return | -66.9% | +9.1% |
| 5-year return | -99.8% | +58.8% |
| Volatility (ann.) | 275.5% | 34.0% |
| Beta vs S&P 500 | 1.87 | 0.70 |
| Max drawdown (3Y) | -98.2% | -33.2% |
| Market cap | – | – |
| P/E (trailing) | – | 21.2 |
| Dividend yield | 0.00% | 0.36% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BQ | IDT |
|---|---|---|
| 2022 | -77.1% | -36.2% |
| 2023 | -88.5% | +21.0% |
| 2024 | -22.1% | +40.1% |
| 2025 | -43.6% | +8.2% |
| 2026 | -54.7% | +34.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BQ and IDT good diversifiers for each other?
Yes. With a correlation of -0.36, BQ and IDT have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BQ and IDT?
Using weekly returns as of 2026-08-27: -0.36 over 3 years, with -0.67 over the last year and -0.17 over 5 years.
Is IDT a good diversifier for BQ?
Yes. With a correlation of -0.36, BQ and IDT have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.36 mean?
On the −1 to +1 scale, -0.36 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/bq-vs-idt.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bq-vs-idt/)
Free with attribution; caching and terms are described in the API documentation.
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Hubs: BQ correlations · IDT correlations
