Growth Metrics

Main Street Capital (MAIN) Net Margin (2021 - 2025)

Main Street Capital has reported Net Margin over the past 5 years, most recently at 42.77% for Q4 2025.

  • Quarterly results put Net Margin at 42.77% for Q4 2025, up 46.0% from a year ago — trailing twelve months through Dec 2025 was 42.15% (up 298.0% YoY), and the annual figure for FY2025 was 42.15%, up 500.0%.
  • Net Margin for Q4 2025 was 42.77% at Main Street Capital, up from 40.79% in the prior quarter.
  • Over the last five years, Net Margin for MAIN hit a ceiling of 370.3% in Q4 2022 and a floor of 29.06% in Q3 2021.
  • Median Net Margin over the past 5 years was 42.54% (2025), compared with a mean of 60.56%.
  • Biggest five-year swings in Net Margin: soared 30671bps in 2022 and later crashed -31891bps in 2023.
  • Main Street Capital's Net Margin stood at 63.58% in 2021, then soared by 482bps to 370.3% in 2022, then tumbled by -86bps to 51.39% in 2023, then fell by -18bps to 42.31% in 2024, then increased by 1bps to 42.77% in 2025.
  • The last three reported values for Net Margin were 42.77% (Q4 2025), 40.79% (Q3 2025), and 42.24% (Q2 2025) per Business Quant data.