Iron Mountain (IRM) Reports Q4 Earnings: What Key Metrics Have to Say

For the quarter ended December 2025, Iron Mountain (IRM) reported revenue of $1.84 billion, up 16.6% over the same period last year. EPS came in at $1.44, compared to $0.50 in the year-ago quarter.

The reported revenue compares to the Zacks Consensus Estimate of $1.8 billion, representing a surprise of +2.18%. The company delivered an EPS surprise of +3.35%, with the consensus EPS estimate being $1.39.

While investors closely watch year-over-year changes in headline numbers -- revenue and earnings -- and how they compare to Wall Street expectations to determine their next course of action, some key metrics always provide a better insight into a company's underlying performance.

As these metrics influence top- and bottom-line performance, comparing them to the year-ago numbers and what analysts estimated helps investors project a stock's price performance more accurately.

Here is how Iron Mountain performed in the just reported quarter in terms of the metrics most widely monitored and projected by Wall Street analysts:

• Revenues- Storage Rental Revenue: $1.06 billion versus the seven-analyst average estimate of $1.06 billion. The reported number represents a year-over-year change of +12.7%.
• Revenues- Service Revenue: $781.92 million versus $745.25 million estimated by seven analysts on average. Compared to the year-ago quarter, this number represents a +22.3% change.
• Global Data Center Business- Total Revenues: $236.7 million versus the six-analyst average estimate of $230.08 million. The reported number represents a year-over-year change of +39.1%.
• Corporate and Other- Total Revenues: $233.53 million compared to the $216.49 million average estimate based on five analysts. The reported number represents a change of +52.9% year over year.
• Global RIM Business- Total Revenue: $1.37 billion compared to the $1.37 billion average estimate based on five analysts. The reported number represents a change of +9.1% year over year.
• Global Data Center Business- Storage Rental: $234.41 million versus the four-analyst average estimate of $223.99 million. The reported number represents a year-over-year change of +39.5%.
• Global Data Center Business- Service: $2.29 million versus $4.79 million estimated by four analysts on average. Compared to the year-ago quarter, this number represents a +8.6% change.
• Global RIM Business- Service: $564.41 million versus the four-analyst average estimate of $554.67 million. The reported number represents a year-over-year change of +12.4%.
• Corporate and Other- Service: $215.22 million compared to the $195.89 million average estimate based on four analysts. The reported number represents a change of +59.6% year over year.
• Global RIM Business- Storage Rental: $808.53 million versus $814.29 million estimated by three analysts on average. Compared to the year-ago quarter, this number represents a +7% change.
• Corporate and Other- Storage Rental: $18.31 million compared to the $19.69 million average estimate based on three analysts. The reported number represents a change of +2.1% year over year.
• Earnings per share- Diluted: $0.3 million compared to the $0.39 million average estimate based on three analysts.

View all Key Company Metrics for Iron Mountain here>>>

Shares of Iron Mountain have returned +9.5% over the past month versus the Zacks S&P 500 composite's -0.3% change. The stock currently has a Zacks Rank #3 (Hold), indicating that it could perform in line with the broader market in the near term.

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This article originally published on Zacks Investment Research (zacks.com).

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