Flagship explainer

What drives NORTHWEST NATURAL HOLDING COMPANY’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 equity8%Tax burden73%net income ÷ pretax incomeInterest burden55%pretax ÷ operating incomeOperating margin23%operating income ÷ revenueAsset turnover0.21×revenue ÷ average assetsEquity multiplier3.99×average assets ÷ average equityAs of 2025-12-31 · 1 SEC filing sourceBuy Like Buffett · buylikebuffett.com
DuPont source inputs
InputValueFiscal yearSource
$113MFY2025
Income before tax$155MFY2025
Operating income$281MFY2025
$1.2BFY2025
Ending assets$6.2BFY2025
Beginning assets$5.2BFY2024
$1.5BFY2025
$1.4BFY2024
Source: · event Dec 31, 2025 · retrieved Jul 26, 2026 · annual-row source set
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NWN dupont explainer — Buy Like Buffett · Buy Like Buffett