Corning Inc

Graham earnings-power value (normalized NOPAT)$6.36 – $9.53 / 股

Normalized NOPAT = average operating margin over the years shown × latest-year revenue × (1 − normalized tax); then + D&A − maintenance capex (write A). Unlevered (pre-interest, attributable to all capital). Capitalized at the 9–11% rate band (read as a WACC proxy). Enterprise → equity bridge applied: + cash − total debt.

年份：2025, 2024, 2023, 2022, 2021

v1 简化：Maintenance capex unavailable → degraded to the v1 simplification (maintenance capex = D&A, so the depreciation add-back nets to zero). Share-based compensation is left as a real expense (not added back).

Buffett owner-earnings value$10.91 – $13.01 / 股

Owner earnings = average net income + average D&A − maintenance capex (zero-growth floor; no ΔNWC). Levered (starts from net income, already after interest — an equity-holder stream). Capitalized at the 10.4–12.4% band (9–11% base + 1.4pp leverage premium). No enterprise→equity bridge: the capitalized result is already equity value (subtracting debt would double-count interest).

年份：2025, 2024, 2023, 2022, 2021

v1 简化：Maintenance capex or D&A unavailable → degraded to normalized net income (= average net income over the years shown). One-time items are not separately normalized (multi-year averaging smooths them partially). Share-based compensation is left as a real expense (not added back); see the SBC/OE disclosure. Capitalized at the 9–11% base band plus a 1.4pp leverage premium (cost of equity rises with leverage — MM Proposition II). Net debt is about 5.8 years of owner earnings, adding 1.4pp of cost-of-equity risk premium.