Corning Incorporated
NYSE: GLW · TECHNOLOGY · ELECTRONIC COMPONENTS
Updated 2026-04-30
Corning Incorporated (GLW) Stock Valuation Analysis
Fair value estimate, historical valuation range, and quality signals for GLW.
Valued
Valuation reasonably reflects current fundamentals. Limited margin of safety at these levels.
GLW historical valuation range
Where current P/E sits in GLW's own 5Y range.
GLW intrinsic value (DCF)
DCF-based fair value estimate vs current market price.
Standard discounted cash flow models produce unreliable output for unprofitable or near-breakeven companies. Revenue-based multiples such as P/S and EV/Sales, combined with the historical valuation position above, give a more reliable read for this stock.
Intrinsic value calculated using discounted cash flow (DCF) model based on projected free cash flows, discount rate, and terminal growth assumptions. A positive margin of safety indicates the current price is below estimated fair value, providing a cushion against estimation error.
GLW valuation signals
Quick-read green flags, caution flags, and risks based on current metrics.
P/E Ratio — History
Current: 78.96x
P/S Ratio — History
Current: 8.64x
Is GLW overvalued in 2026?
Corning Incorporated (GLW) currently trades at $164.24 per share with a market capitalization of $141,091,373,000.00. Based on our multi-factor framework, the stock trades at a fair valuation with a Smart Value Score of 62/100. This score blends growth quality, financial health, and price attractiveness into a single institutional-grade read.
The stock trades at a P/E ratio of 79.0x, above its 5-year median of 47.8x. The PEG ratio of 1.70 points to a price that reasonably reflects expected earnings growth.
Looking at its own history, GLW is currently trading more expensive than 76% of the last 5Y on P/E. This places it in the 76th percentile of its historical range, a zone where forward returns have typically been muted.
A standard DCF model does not produce reliable output for GLW under current conditions. For unprofitable or near-breakeven companies, revenue-based multiples such as EV/Sales and historical P/S percentile are more informative than intrinsic value calculations.
The Piotroski F-Score of 5/9 puts financial quality in a middling range, neither a standout strength nor an obvious red flag.
Bottom line: GLW trades at a fair valuation on our framework, with a Smart Value Score of 62/100. The valuation is defensible but offers no obvious bargain. Patience or a better entry price may reward disciplined buyers.
Frequently asked questions
Is GLW overvalued in 2026?
Based on a Smart Value Score of 62/100, GLW is fairly valued. Price reasonably reflects current fundamentals with limited cushion in either direction.
What is GLW's fair value?
Standard DCF is unreliable for GLW due to its current profitability profile. Revenue-based approaches such as EV/Sales or historical P/S percentile are more informative for this stock.
What P/E ratio does GLW trade at?
GLW trades at a P/E of 79.0x on trailing twelve-month earnings, compared to its 5-year median of 47.8x.
Is GLW a buy based on valuation?
WallStSmart does not issue buy or sell recommendations. Our Smart Value Score of 62/100 reflects the combined read on growth, quality, and price. The profile is balanced. Best suited for investors with an existing thesis.
How does GLW's valuation compare to its history?
On P/E, GLW currently sits in the 76th percentile of its own 5Y range. That is historically expensive relative to where it has traded over the period.
What is GLW's Smart Value Score?
GLW's Smart Value Score is 62/100. The Smart Value Score is a proprietary WallStSmart metric blending growth quality, financial health, and valuation attractiveness into a single 0-100 read. Scores above 75 are rare and indicate strong multi-factor alignment.