IDT vs MTG: Correlation
IDT Corporation (IDT) and MGIC Investment Corporation (MTG) show a moderate relationship: their 3-year correlation of weekly returns is 0.43.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IDT and MTG?
Over the past 3 years, IDT and MTG moved with a correlation of 0.43, which is moderate. The relationship has been stable: the 1-year correlation (0.46) sits close to the 3-year figure. Over 5 years the correlation is 0.36, and the annualized covariance of weekly returns is 318.5 %².
Few assets follow IDT as closely as MTG, which ranks #3 of 14 tracked partners. Twelve-month performance is nearly a tie, at +9.1% for IDT and +13.5% for MTG. One caveat on sizing: IDT is 1.6 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.
IDT vs MTG: side by side
| IDT (IDT Corporation) | MTG (MGIC Investment Corporation) | |
|---|---|---|
| 1-year return | +9.1% | +13.5% |
| 5-year return | +58.8% | +129.5% |
| Volatility (ann.) | 34.0% | 21.6% |
| Beta vs S&P 500 | 0.70 | 0.57 |
| Max drawdown (3Y) | -33.2% | -15.8% |
| Market cap | – | $6.4B |
| P/E (trailing) | 21.2 | 9.8 |
| Dividend yield | 0.36% | 1.92% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IDT | MTG |
|---|---|---|
| 2022 | -36.2% | -7.5% |
| 2023 | +21.0% | +52.4% |
| 2024 | +40.1% | +25.7% |
| 2025 | +8.2% | +25.9% |
| 2026 | +34.8% | +8.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IDT and MTG good diversifiers for each other?
Reasonably. At 0.43, IDT and MTG keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between IDT and MTG?
The IDT/MTG correlation stands at 0.43 on a 3-year window (1 year: 0.46, 5 years: 0.36), computed from weekly returns as of 2026-08-27.
Is MTG a good diversifier for IDT?
Reasonably. At 0.43, IDT and MTG keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.43 mean?
A reading of 0.43 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
$ curl https://www.pairbook.io/api/v1/pairs/idt-vs-mtg.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/idt-vs-mtg/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IDT correlations · MTG correlations
