Rochester, MN (KROC-AM News) - Despite a big jump from investment returns, Mayo Clinic experienced a modest decline in net income during the second quarter of this year.

A required financial filing shows Mayo Clinic’s income from current activities—considered a key measure of its financial performance—was reported at $394 million for the three-month period that ended in June. That’s down about $54 million, or roughly 12%, compared with the second quarter of last year. It was up about 9.7% compared with the first quarter of this year.

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Mayo Clinic reported more than $5.34 billion in revenues from April through June, including more than $4.5 billion in medical service revenue. Compared with the second quarter of last year, total revenue was up $337 million, or 6.7%.

Kim David/TSM

At the same time, Mayo Clinic’s expenses grew faster. The total for the second quarter was about $4.95 billion—about $391 million, or 8.5%, higher than the same three-month period a year ago. The report shows Mayo’s spending on salaries and benefits increased about 7.5% year-over-year.

The filing indicates the healthcare giant’s returns from investments jumped from $49 million last year to $580 million in the second quarter of this year.

(Photo by Drew Angerer/Getty Images)

For the first six months of 2025, Mayo Clinic’s revenues rose 7.3% compared with the first half of 2024, totaling about $10.4 billion. Expenses for the first half of the year climbed 8.3% to about $9.68 billion.

Income from current activities was down about $36 million from the first half of last year, at about $753 million.

All of the monetary figures listed in the story are based on Mayo Clinic reported revenues, expenses, and income from current activities without donor restrictions.

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The unaudited report was filed with the online Electronic Municipal Market Access site, a service of the Municipal Securities Rulemaking Board. The report is required because of municipal bonds sold by Mayo to finance various economic development projects.