PairBook
HomeCHAI › CHAI vs SPRB

CHAI vs SPRB: Correlation

How closely do Core AI Holdings, Inc. (CHAI) and Spruce Biosciences, Inc. (SPRB) trade together? Their weekly returns over three years give a correlation of -0.19, which is negative.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
-0.19
negative
Correlation (1Y)
-0.42
last 12 months
Correlation (5Y)
-0.16
long-run
Ann. covariance
-32477.8
%² · weekly, annualized

How correlated are CHAI and SPRB?

Over the past 3 years, CHAI and SPRB moved with a correlation of -0.19, which is negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.42) runs below the 3-year figure (-0.19). Over 5 years the correlation is -0.16, and the annualized covariance of weekly returns is -32477.8 %².

Among the 11 assets we track against CHAI, SPRB sits near the bottom by co-movement, at rank #9. Correlation aside, the last 12 months split them widely, with SPRB ahead by 844.2 points (-97.9% versus +746.3%). Note the risk asymmetry: SPRB runs 7.1 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.

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.

CHAI vs SPRB: side by side

CHAI (Core AI Holdings, Inc.)SPRB (Spruce Biosciences, Inc.)
1-year return-97.9%+746.3%
5-year return-100.0%-99.8%
Volatility (ann.)153.8%1086.4%
Beta vs S&P 5000.95-7.82
Max drawdown (3Y)-100.0%-100.0%
Market cap$0.2B
P/E (trailing)
Dividend yield0.00%0.00%
Sector / categoryUS ListedUS Listed
Higher 5y return: SPRB -99.8% vs -100.0%
-97%0%+1829%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. CHAI · SPRB

Year-by-year returns

YearCHAISPRB
2022-95.9%-75.4%
2023-96.1%+167.1%
2024-99.2%-85.7%
2025-93.3%-96.3%
2026-84.4%-27.3%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are CHAI and SPRB good diversifiers for each other?

Yes. With a correlation of -0.19, CHAI and SPRB have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

FAQ

What is the correlation between CHAI and SPRB?

As of 2026-08-27, the correlation of weekly returns between CHAI and SPRB is -0.19 over 3 years, -0.42 over 1 year and -0.16 over 5 years.

Is SPRB a good diversifier for CHAI?

Yes. With a correlation of -0.19, CHAI and SPRB have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

What does a correlation of -0.19 mean?

Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.

Use this data

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/chai-vs-sprb.json

CHAI vs SPRB: 3-year weekly correlation -0.19CHAI vs SPRB-0.19

Markdown for the live badge, attribution link included:

[![CHAI vs SPRB correlation](https://www.pairbook.io/api/v1/badge/chai-vs-sprb.svg)](https://www.pairbook.io/pair/chai-vs-sprb/)

Free with attribution; caching and terms are described in the API documentation.

Related comparisons

Hubs: CHAI correlations · SPRB correlations