FDMT vs RGNX: Correlation
4D Molecular Therapeutics, Inc. (FDMT) and REGENXBIO Inc. (RGNX) show a moderate relationship: their 3-year correlation of weekly returns is 0.46.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FDMT and RGNX?
On 3 years of weekly data the FDMT/RGNX correlation comes out at 0.46, moderate. Recent behaviour matches the longer record: 0.48 over 1 year against 0.46 over 3. The 5-year figure is 0.42, and annualized covariance runs at 3449.2 %².
Few assets follow FDMT as closely as RGNX, which ranks #2 of 15 tracked partners. Correlation aside, the last 12 months split them widely, with FDMT ahead by 124.6 points (+130.8% versus +6.2%).
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.
FDMT vs RGNX: side by side
| FDMT (4D Molecular Therapeutics, Inc.) | RGNX (REGENXBIO Inc.) | |
|---|---|---|
| 1-year return | +130.8% | +6.2% |
| 5-year return | -50.9% | -70.5% |
| Volatility (ann.) | 89.9% | 84.1% |
| Beta vs S&P 500 | 1.09 | 2.28 |
| Max drawdown (3Y) | -93.0% | -78.4% |
| Market cap | $0.8B | $0.6B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FDMT | RGNX |
|---|---|---|
| 2022 | +1.2% | -30.6% |
| 2023 | -8.8% | -20.9% |
| 2024 | -72.5% | -56.9% |
| 2025 | +34.6% | +86.3% |
| 2026 | +98.8% | -34.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FDMT and RGNX good diversifiers for each other?
Reasonably. At 0.46, FDMT and RGNX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between FDMT and RGNX?
Using weekly returns as of 2026-08-27: 0.46 over 3 years, with 0.48 over the last year and 0.42 over 5 years.
Is RGNX a good diversifier for FDMT?
Reasonably. At 0.46, FDMT and RGNX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.46 mean?
On the −1 to +1 scale, 0.46 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
$ curl https://www.pairbook.io/api/v1/pairs/fdmt-vs-rgnx.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/fdmt-vs-rgnx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: FDMT correlations · RGNX correlations
