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What drives Koss Corporation’s return on equity?

ROE is five filed business factors multiplied together.

DuPont return on equity factor treeReturn on equity branches into tax burden, interest burden, operating margin, asset turnover, and the equity multiplier.Return on equity−1%Tax burden103%net income ÷ pretax incomeInterest burden25%pretax ÷ operating incomeOperating margin−12%operating income ÷ revenueAsset turnover0.35×revenue ÷ average assetsEquity multiplier1.22×average assets ÷ average equityAs of 2026-06-30 · 1 SEC filing sourceBuy Like Buffett · buylikebuffett.com
DuPont source inputs
InputValueFiscal yearSource
−$391464FY2026
  • 10-K · FY 2026Filing detailsAccession 0000056701-26-000034 · filed Aug 28, 2026
Income before tax−$380572FY2026
  • 10-K · FY 2026Filing detailsAccession 0000056701-26-000034 · filed Aug 28, 2026
Operating income−$1.5MFY2026
  • 10-K · FY 2026Filing detailsAccession 0000056701-26-000034 · filed Aug 28, 2026
$13MFY2026
  • 10-K · FY 2026Filing detailsAccession 0000056701-26-000034 · filed Aug 28, 2026
Ending assets$36.7MFY2026
  • 10-K · FY 2026Filing detailsAccession 0000056701-26-000034 · filed Aug 28, 2026
Beginning assets$37.2MFY2025
  • 10-K · FY 2025Filing detailsAccession 0000056701-26-000034 · filed Aug 28, 2026
$30.2MFY2026
  • 10-K · FY 2026Filing detailsAccession 0000056701-26-000034 · filed Aug 28, 2026
$30.6MFY2025
  • 10-K · FY 2025Filing detailsAccession 0000056701-26-000034 · filed Aug 28, 2026
Source: · event Jun 30, 2026 · retrieved Oct 16, 2026 · annual-row source set
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