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BA vs RFAI: Correlation

How closely do Boeing (BA) and RF Acquisition Corp II (RFAI) trade together? Their weekly returns over three years give a correlation of -0.14, which is negative.

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

Correlation (3Y)
-0.14
negative
Correlation (1Y)
-0.23
last 12 months
Correlation (5Y)
n/a
long-run
Ann. covariance
-1543.6
%² · weekly, annualized

How correlated are BA and RFAI?

On 3 years of weekly data the BA/RFAI correlation comes out at -0.14, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.23) sits close to the 3-year figure. The 5-year figure is n/a, and annualized covariance runs at -1543.6 %².

Among the 37 assets we track against BA, RFAI ranks #29 by 3-year correlation. The last year tells two different stories: RFAI led by 400.4 percentage points, -10.9% for BA against +389.5% for RFAI. Risk is not evenly split, since RFAI carries 7.9 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.

BA vs RFAI: side by side

BA (Boeing)RFAI (RF Acquisition Corp II)
1-year return-10.9%+389.5%
5-year return-3.6%n/a
Volatility (ann.)36.4%288.3%
Beta vs S&P 5001.43-1.62
Max drawdown (3Y)-48.3%-16.5%
Market cap$165.9B$0.4B
P/E (trailing)76.3399.9
Dividend yield0.00%0.00%
Sector / categoryIndustrialsUS Listed
Lower P/E: BA 76.3 vs 399.9Smaller drawdown: RFAI -16.5% vs -48.3%
-22%0%+447%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). BA · RFAI

Year-by-year returns

YearBARFAI
2022-5.4%
2023+36.8%
2024-32.1%
2025+22.7%+5.2%
2026-3.3%+383.6%

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

Are BA and RFAI good diversifiers for each other?

By historical standards, yes. A correlation of -0.14 means the two rarely move for the same reasons.

FAQ

What is the correlation between BA and RFAI?

Using weekly returns as of 2026-08-27: -0.14 over 3 years, with -0.23 over the last year and n/a over 5 years.

Is RFAI a good diversifier for BA?

By historical standards, yes. A correlation of -0.14 means the two rarely move for the same reasons.

What does a correlation of -0.14 mean?

On the −1 to +1 scale, -0.14 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/ba-vs-rfai.json

BA vs RFAI: 3-year weekly correlation -0.14BA vs RFAI-0.14

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Related comparisons

Hubs: BA correlations · RFAI correlations