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AIG vs PFG: Correlation

Measured on weekly returns over the past three years, American International Group (AIG) and Principal Financial Group (PFG) carry a correlation of 0.55, a moderate link.

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

Correlation (3Y)
0.55
moderate
Correlation (1Y)
0.31
last 12 months
Correlation (5Y)
0.67
long-run
Ann. covariance
256.3
%² · weekly, annualized

How correlated are AIG and PFG?

On 3 years of weekly data the AIG/PFG correlation comes out at 0.55, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.31 versus 0.55 over 3 years. The 5-year figure is 0.67, and annualized covariance runs at 256.3 %².

Within AIG's tracked universe of 28 assets, PFG comes in at #10 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months PFG outperformed by 48.5 percentage points (-4.6% for AIG against +43.9% for PFG). The rolling one-year correlation moved between 0.34 and 0.77 over the past three years, a moderate range.

+1.0+0.50-0.5-1.020232026-08-27
Rolling one-year correlation of weekly returns over the past three years.
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.

AIG vs PFG: side by side

AIG (American International Group)PFG (Principal Financial Group)
1-year return-4.6%+43.9%
5-year return+58.9%+99.7%
Volatility (ann.)20.1%22.9%
Beta vs S&P 5000.460.88
Max drawdown (3Y)-17.0%-22.4%
Market cap$40.1B$24.0B
P/E (trailing)14.016.0
Dividend yield2.40%2.84%
Sector / categoryFinancialsFinancials
Lower P/E: AIG 14.0 vs 16.0Higher yield: PFG 2.84% vs 2.40%Smaller drawdown: AIG -17.0% vs -22.4%Higher 5y return: PFG +99.7% vs +58.9%
-8%0%+46%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. AIG · PFG

Year-by-year returns

YearAIGPFG
2022+13.8%+20.1%
2023+9.8%-2.8%
2024+9.8%+1.9%
2025+20.0%+18.4%
2026-9.3%+29.3%

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

Are AIG and PFG good diversifiers for each other?

To a limited degree. At 0.55 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.

FAQ

What is the correlation between AIG and PFG?

Using weekly returns as of 2026-08-27: 0.55 over 3 years, with 0.31 over the last year and 0.67 over 5 years.

Is PFG a good diversifier for AIG?

To a limited degree. At 0.55 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.

What does a correlation of 0.55 mean?

A reading of 0.55 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

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$ curl https://www.pairbook.io/api/v1/pairs/aig-vs-pfg.json

AIG vs PFG: 3-year weekly correlation 0.55AIG vs PFG0.55

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Hubs: AIG correlations · PFG correlations