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RFAI vs RTX: Correlation

Measured on weekly returns over the past three years, RF Acquisition Corp II (RFAI) and RTX Corporation (RTX) carry a correlation of -0.18, a negative link.

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

Correlation (3Y)
-0.18
negative
Correlation (1Y)
-0.24
last 12 months
Correlation (5Y)
n/a
long-run
Ann. covariance
-1324.3
%² · weekly, annualized

How correlated are RFAI and RTX?

Across a 3-year window, the weekly returns of RFAI and RTX correlate at -0.18, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.24 over 1 year against -0.18 over 3. Stretching to 5 years gives n/a, with an annualized covariance of -1324.3 %².

Within RFAI's tracked universe of 65 assets, RTX comes in at #28 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months RFAI outperformed by 354.8 percentage points (+389.5% for RFAI against +34.7% for RTX). One caveat on sizing: RFAI is 11.5 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.

RFAI vs RTX: side by side

RFAI (RF Acquisition Corp II)RTX (RTX Corporation)
1-year return+389.5%+34.7%
5-year returnn/a+178.4%
Volatility (ann.)288.3%25.1%
Beta vs S&P 500-1.620.57
Max drawdown (3Y)-16.5%-19.7%
Market cap$0.4B$285.8B
P/E (trailing)399.937.3
Dividend yield0.00%1.31%
Sector / categoryUS ListedIndustrials
Lower P/E: RTX 37.3 vs 399.9Higher yield: RTX 1.31% vs 0.00%Smaller drawdown: RFAI -16.5% vs -19.7%
-1%0%+447%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. RFAI · RTX

Year-by-year returns

YearRFAIRTX
2022+20.0%
2023-14.4%
2024+40.8%
2025+5.2%+61.4%
2026+383.6%+16.9%

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

Are RFAI and RTX good diversifiers for each other?

Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.

FAQ

What is the correlation between RFAI and RTX?

The RFAI/RTX correlation stands at -0.18 on a 3-year window (1 year: -0.24, 5 years: n/a), computed from weekly returns as of 2026-08-27.

Is RTX a good diversifier for RFAI?

Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.

What does a correlation of -0.18 mean?

On the −1 to +1 scale, -0.18 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/rfai-vs-rtx.json

RFAI vs RTX: 3-year weekly correlation -0.18RFAI vs RTX-0.18

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Hubs: RFAI correlations · RTX correlations