PE Ratio: 79.56

Basis: FMP quote price / unrounded diluted EPS from four consecutive issuer fiscal quarters. Source: stored company filings and market data; unavailable inputs remain N/A.

The P/E ratio is 79.56 as of 2026-09-25T23:31:08.678Z.

PE Ratio (79.56) = Close Price ($111.38) / Diluted TTM EPS ($1.40)

IRM PE Ratio Metrics

P/E vs. its own history

At 79.6, P/E is above its 20-year median — higher than 82% of readings in its 20-year history.

P/E Comparison

PE Ratio Formula & Definition

PE Ratio = Share Price / Diluted EPS (TTM)

The price-to-earnings ratio measures how much investors pay for each dollar of trailing earnings. A lower PE can indicate a cheaper valuation; a higher PE implies higher growth expectations.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

PE Ratio FAQ

What is the P/E ratio for Iron Mountain Incorporated (IRM)?

The P/E ratio for IRM stock is 79.56.

What is the TTM average P/E ratio for Iron Mountain Incorporated (IRM)?

The TTM average P/E ratio for IRM stock is 162.32.

What is the 3Y average P/E ratio for Iron Mountain Incorporated (IRM)?

The 3Y average P/E ratio for IRM stock is 159.23.

What is the 5Y average P/E ratio for Iron Mountain Incorporated (IRM)?

The 5Y average P/E ratio for IRM stock is 104.55.

What is the 10Y average P/E ratio for Iron Mountain Incorporated (IRM)?

The 10Y average P/E ratio for IRM stock is 69.97.

What is the 15Y average P/E ratio for Iron Mountain Incorporated (IRM)?

The 15Y average P/E ratio for IRM stock is 46.20.

What is the 20Y average P/E ratio for Iron Mountain Incorporated (IRM)?

The 20Y average P/E ratio for IRM stock is 41.00.

Showing the most recent 260 of 4,844 data points. The chart above shows the full history.

Related Metrics