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What Is Net Operating Income?

By Anders Bylund – Updated Sep 6, 2025 at 3:19PM

Key Points

  • Net operating income (NOI) measures a company's profit from its core operations before taxes and interest.
  • A high NOI indicates efficient management and controlled costs; a low NOI suggests rising expenses are impacting profits.
  • Tracking changes in NOI over time can help investors assess a company's operational efficiency compared to its peers.

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