First Solar Inc
NASDAQ: FSLR · TECHNOLOGY · SOLAR
Updated 2026-04-29
First Solar Inc (FSLR) Stock Valuation Analysis
Fair value estimate, historical valuation range, and quality signals for FSLR.
Valued
Fundamentals support the current valuation. Strong combination of growth, quality, and price.
FSLR historical valuation range
Where current P/E sits in FSLR's own 5Y range.
FSLR intrinsic value (DCF)
DCF-based fair value estimate vs current market price.
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.
FSLR valuation signals
Quick-read green flags, caution flags, and risks based on current metrics.
P/E Ratio — History
Current: 13.40x
P/S Ratio — History
Current: 3.92x
Is FSLR overvalued in 2026?
First Solar Inc (FSLR) currently trades at $190.61 per share with a market capitalization of $20,481,190,000.00. Based on our multi-factor framework, the stock looks attractively valued with a Smart Value Score of 82/100. 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 13.4x, below its 5-year median of 17.7x. The PEG ratio of 0.50 suggests earnings growth is outpacing the multiple, a classic sign of undervaluation.
Looking at its own history, FSLR is currently trading cheaper than 87% of the last 5Y on P/E. This places it in the 13th percentile of its historical range, a level that has historically coincided with attractive entry points.
Our discounted cash flow model estimates FSLR's intrinsic value at $277.31 per share, against the current market price of $190.61. This implies a margin of safety of +17.88%. A meaningful cushion exists against model error, making this a reasonable risk-adjusted entry.
The Piotroski F-Score of 4/9 puts financial quality in a middling range, neither a standout strength nor an obvious red flag.
Bottom line: FSLR looks attractively valued on our framework, with a Smart Value Score of 82/100. The combination of reasonable price, healthy growth, and quality fundamentals makes it worth serious consideration.
Frequently asked questions
Is FSLR overvalued in 2026?
Based on a Smart Value Score of 82/100, FSLR is not overvalued. Fundamentals support the current price and offer reasonable margin of safety.
What is FSLR's fair value?
Our DCF model estimates FSLR's intrinsic value at $277.31 per share, versus the current price of $190.61. This produces a margin of safety of +17.88%.
What P/E ratio does FSLR trade at?
FSLR trades at a P/E of 13.4x on trailing twelve-month earnings, compared to its 5-year median of 17.7x.
Is FSLR a buy based on valuation?
WallStSmart does not issue buy or sell recommendations. Our Smart Value Score of 82/100 reflects the combined read on growth, quality, and price. The profile skews favorable for long-term accumulation.
How does FSLR's valuation compare to its history?
On P/E, FSLR currently sits in the 13th percentile of its own 5Y range. That is historically cheap relative to where it has traded over the period.
What is FSLR's Smart Value Score?
FSLR's Smart Value Score is 82/100. 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.