First Solar (WBO:FSLR) Quality Rank

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

WBO:FSLR First Solar Inc WBO:FSLR
91 GF Score
Price €194.00
GF Value €234.52
! 5 Warning Signs
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What is First Solar Quality Rank?

The Quality Rank measures the business quality of a company relative to other companies. It is ranked based on the strength of the balance sheet, as well as the profitability and growth of the business. The ranked companies are split in equal numbers and then ranked from 1 to 10, with 10 being the highest.

The rank of balance sheet (30%)

The rank of balance sheet is done through the ranking of:
  • Interest coverage
  • Zscore
  • Debt to revenue
  • Equity to asset
  • Cash to debt

The rank of Profitability (70%)

The ranking of Profitability is done by ranking:
  • Operating margin mean rank (10-year mean average profit margine)
  • Operating margin growth rank
  • Fscore
  • Predictability rank
  • Revenue growth rank (5 year), when the growth is higher than 25%, set it as 25%
  • Num of year profit (number of years that is profitable within the last 10 years)
  • ROIC median (10-year median of ROIC)

First Solar Quality Rank Related Terms

WBO:FSLR
91GF Score
First Solar Inc WBO:FSLR
Quality Rank is just one metric. See GF Score™, valuation, warning signs, and more.
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Is First Solar (WBO:FSLR) Overvalued in 2026?

Based on GuruFocus' analysis, First Solar stock appears to be undervalued. The current stock price of €194.00 is trading 17.3% below its estimated GF Value™ of €234.52.

Key valuation signals for WBO:FSLR:

  • Quality Rank:
  • GF Value™: €234.52 vs. price of €194.00 (17.3% below fair value)
  • GF Score™: 91/100 with 5 warning signs

No single metric tells the full story. See the WBO:FSLR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

First Solar Business Description

Address 4300 East Camelback Road, Suite 220, Phoenix, AZ, USA, 85018
First Solar designs and manufactures solar photovoltaic panels, modules, and systems for use in utility-scale development projects. The company's solar modules use cadmium telluride to convert sunlight into electricity. This is commonly called thin-film technology. First Solar is the world's largest thin-film solar module manufacturer. It has production lines in Vietnam, Malaysia, the United States, and India.
91GF Score

Get the complete analysis for WBO:FSLR

Quality Rank is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€194.00
Price
€234.52
GF Value