IRM vs VTV: Correlation
How closely do Iron Mountain (IRM) and Vanguard Value ETF (VTV) trade together? Their weekly returns over three years give a correlation of 0.54, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IRM and VTV?
Across a 3-year window, the weekly returns of IRM and VTV correlate at 0.54, moderate. The link has loosened recently: the 1-year correlation (0.44) runs below the 3-year figure (0.54). Stretching to 5 years gives 0.59, with an annualized covariance of 198.2 %².
Among the 31 assets we track against IRM, VTV ranks #9 by 3-year correlation. The trailing year gives IRM the advantage: +38.1% versus +25.7%, a 12.4-point spread. On a rolling one-year basis the correlation drifted between 0.39 and 0.79, a moderate band. Risk is not evenly split, since IRM carries 2.6 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.
IRM vs VTV: side by side
| IRM (Iron Mountain) | VTV (Vanguard Value ETF) | |
|---|---|---|
| 1-year return | +38.1% | +25.7% |
| 5-year return | +219.3% | +79.1% |
| Volatility (ann.) | 30.8% | 11.9% |
| Beta vs S&P 500 | 0.96 | 0.65 |
| Max drawdown (3Y) | -39.0% | -14.5% |
| Market cap | $36.5B | – |
| P/E (trailing) | 86.4 | – |
| Dividend yield | 2.78% | 1.86% |
| Expense ratio | – | 0.03% |
| Assets under management | – | $256.4B |
| Sector / category | Real Estate | ETF · US Style |
On the fund side, VTV sits in the Large Value category at Vanguard, with $256.4B under management, 308 holdings, a 0.03% expense ratio, a 1.86% trailing dividend yield.
Year-by-year returns
| Year | IRM | VTV |
|---|---|---|
| 2022 | -0.1% | -2.1% |
| 2023 | +46.5% | +9.3% |
| 2024 | +54.5% | +16.0% |
| 2025 | -18.2% | +15.3% |
| 2026 | +50.1% | +19.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
A structural note: 0.13% of VTV is IRM itself, so the fund partly moves with the stock by construction.
Are IRM and VTV good diversifiers for each other?
Only partially. A correlation of 0.54 means IRM and VTV share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between IRM and VTV?
As of 2026-08-27, the correlation of weekly returns between IRM and VTV is 0.54 over 3 years, 0.44 over 1 year and 0.59 over 5 years.
Is VTV a good diversifier for IRM?
Only partially. A correlation of 0.54 means IRM and VTV share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.54 mean?
On the −1 to +1 scale, 0.54 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.
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Related comparisons
Hubs: IRM correlations · VTV correlations
