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PSO vs TYGO: Correlation

How closely do Pearson, Plc (PSO) and Tigo Energy, Inc. (TYGO) trade together? Their weekly returns over three years give a correlation of -0.21, which is negative.

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

Correlation (3Y)
-0.21
negative
Correlation (1Y)
-0.34
last 12 months
Correlation (5Y)
-0.09
long-run
Ann. covariance
-463.9
%² · weekly, annualized

How correlated are PSO and TYGO?

On 3 years of weekly data the PSO/TYGO correlation comes out at -0.21, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.34 versus -0.21 over 3 years. The 5-year figure is -0.09, and annualized covariance runs at -463.9 %².

TYGO is close to the least connected end of PSO's tracked universe, ranking #8 of 10. Their recent paths diverged sharply: over the last 12 months PSO outperformed by 34.0 percentage points (+15.6% for PSO against -18.4% for TYGO). One caveat on sizing: TYGO is 4.5 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.

PSO vs TYGO: side by side

PSO (Pearson, Plc)TYGO (Tigo Energy, Inc.)
1-year return+15.6%-18.4%
5-year return+77.5%-88.7%
Volatility (ann.)22.1%100.4%
Beta vs S&P 5000.310.62
Max drawdown (3Y)-30.7%-94.1%
Market cap$10.0B$0.1B
P/E (trailing)24.16.9
Dividend yield1.56%0.00%
Sector / categoryUS ListedUS Listed
Lower P/E: TYGO 6.9 vs 24.1Higher yield: PSO 1.56% vs 0.00%Smaller drawdown: PSO -30.7% vs -94.1%Higher 5y return: PSO +77.5% vs -88.7%
-27%0%+234%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. PSO · TYGO

Year-by-year returns

YearPSOTYGO
2022+37.7%+3.0%
2023+12.0%-79.5%
2024+34.2%-52.9%
2025-11.2%+40.1%
2026+21.6%-19.6%

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

Are PSO and TYGO good diversifiers for each other?

By historical standards, yes. A correlation of -0.21 means the two rarely move for the same reasons.

FAQ

What is the correlation between PSO and TYGO?

Using weekly returns as of 2026-08-27: -0.21 over 3 years, with -0.34 over the last year and -0.09 over 5 years.

Is TYGO a good diversifier for PSO?

By historical standards, yes. A correlation of -0.21 means the two rarely move for the same reasons.

What does a correlation of -0.21 mean?

On the −1 to +1 scale, -0.21 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

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

PSO vs TYGO: 3-year weekly correlation -0.21PSO vs TYGO-0.21

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Related comparisons

Hubs: PSO correlations · TYGO correlations