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.
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.
Singapore AirlinesSGX:C6L -0.30%81 Cyclically Adjusted PS Ratio is 0.85 as of Sep. 04, 2026, which is 18% above its 10-year median of 0.72. GuruFocus rates SGX:C6L with a GF Score™ of 81/100 and a GF Value™ of S$7.17 (Fairly Valued). The stock has 5 warning signs investors should review. Among 763 Transportation companies, Singapore Airlines ranks better than 52.82% on this metric.
The historical rank and industry rank for Singapore Airlines's Cyclically Adjusted PS Ratio or its related term are showing as below:
SGX:C6L'
s Cyclically Adjusted PS Ratio Range Over the Past 10 Years
Min: 0.35 Med: 0.72 Max: 0.97
Current: 0.85
During the past years, Singapore Airlines's highest Cyclically Adjusted PS Ratio was 0.97. The lowest was 0.35. And the median was 0.72.
SGX:C6L's Cyclically Adjusted PS Ratio is ranked better than 52.82% of 763
companies
in the Transportation industry
Industry Median: 0.92
vs SGX:C6L: 0.85
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio. The Cyclically Adjusted Revenue per Share is the average of the inflation adjusted revenue per share of a company over the past 10 years.
Singapore Airlines's adjusted revenue per share data for the three months ended in Jun. 2026 was S$1.809. Add all the adjusted revenue per share for the past 10 years together and divide 10 will get our Cyclically Adjusted Revenue per Share, which is S$7.94 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Singapore Airlines (SGX:C6L) Cyclically Adjusted PS Ratio Explanation
Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PS Ratio should give similar results to regular PS Ratio.
Singapore Airlines Cyclically Adjusted PS Ratio Related Terms
Singapore Airlines Cyclically Adjusted PS Ratio Historical Data
* Premium members only.
The historical data trend for Singapore Airlines's Cyclically Adjusted PS Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Singapore Airlines Cyclically Adjusted PS Ratio Chart
SGX:C6L vs DAL, UAL, LUV: Cyclically Adjusted PS Ratio Comparison
For the Airlines subindustry, Singapore Airlines's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Singapore Airlines Cyclically Adjusted PS Ratio vs Transportation Industry
For the Transportation industry and Industrials sector, Singapore Airlines's Cyclically Adjusted PS Ratio distribution charts can be found below:
* The bar in red indicates where Singapore Airlines's Cyclically Adjusted PS Ratio falls into.
Singapore Airlines Cyclically Adjusted PS Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio.
Singapore Airlines's Cyclically Adjusted PS Ratio for today is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted PS Ratio of 0.85 mean?
Singapore Airlines (SGX:C6L) has a Cyclically Adjusted PS Ratio of 0.85 as of Sep. 04, 2026. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Singapore Airlines and its competitors. This is 18% above median its historical median of 0.72. Over the past decade, Singapore Airlines' Cyclically Adjusted PS Ratio has ranged from 0.35 to 0.97. According to the industry distribution chart, Singapore Airlines ranks #360 out of 763 companies in the Transportation industry, placing it in the top 47.2%.
Is Singapore Airlines' Cyclically Adjusted PS Ratio too high?
Singapore Airlines' current Cyclically Adjusted PS Ratio of 0.85 is 18% above median its 10-year median of 0.72. Over the past 10 years, this metric has ranged from a low of 0.35 to a high of 0.97. The Transportation industry median Cyclically Adjusted PS Ratio is 0.92. Singapore Airlines' value of 0.85 is 7.6% below this industry median. Based on the distribution chart, Singapore Airlines ranks #360 out of 763 companies in the Transportation industry, which is above the industry midpoint. Overall, Singapore Airlines has a GF Score™ of 81/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Singapore Airlines' Cyclically Adjusted PS Ratio compare to DAL and UAL?
According to the Transportation industry distribution chart, Singapore Airlines ranks #360 out of 763 companies for Cyclically Adjusted PS Ratio. This puts Singapore Airlines in the upper half of its industry. The industry median Cyclically Adjusted PS Ratio is 0.92. Singapore Airlines' value of 0.85 is 7.6% below this benchmark. Historically, Singapore Airlines' own Cyclically Adjusted PS Ratio has ranged from 0.35 to 0.97 over the past decade. While the company's 10-year median is 0.72 vs. the industry median of 0.92, Singapore Airlines has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PS Ratio for a Transportation company?
The median Cyclically Adjusted PS Ratio among Transportation companies is 0.92, based on 763 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Singapore Airlines's current Cyclically Adjusted PS Ratio of 0.85 is 7.6% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PS Ratio mean?
A high Cyclically Adjusted PS Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Singapore Airlines and its competitors. For the Transportation industry, the median Cyclically Adjusted PS Ratio is 0.92 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Singapore Airlines's current Cyclically Adjusted PS Ratio is 0.85, which is 18% above median its own 10-year median of 0.72. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Singapore Airlines stock overvalued right now?
Based on GuruFocus' analysis, Singapore Airlines (SGX:C6L) is currently considered Fairly Valued. The stock's GF Value™ is S$7.17, compared to a current price of S$6.75 — trading 5.9% below its estimated fair value. The current Cyclically Adjusted PS Ratio is 0.85, which is 18% above median its 10-year median of 0.72 and 7.6% below the Transportation industry median of 0.92. Singapore Airlines' overall GF Score™ is 81/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PS Ratio calculated?
Cyclically Adjusted PS Ratio is calculated from a company's financial statements. For Singapore Airlines (SGX:C6L), the current Cyclically Adjusted PS Ratio is 0.85 as of Sep. 04, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Singapore Airlines (SGX:C6L) Overvalued in 2026?
Based on GuruFocus' analysis, Singapore Airlines stock appears to be undervalued.
The current stock price of S$6.75 is trading 5.9% below its estimated GF Value™ of S$7.17.
GuruFocus considers Singapore Airlines to be Fairly Valued.
Key valuation signals for SGX:C6L:
Cyclically Adjusted PS Ratio: 0.85 (18% above median its 10-year median of 0.72)
GF Value™: S$7.17 vs. price of S$6.75 (5.9% below fair value)
Industry Position: 7.6% below the Transportation median (#360 of 763)
No single metric tells the full story. See the SGX:C6L stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Singapore Airlines is Singapore's flagship carrier and one of the region's largest airlines in terms of revenue and carrying capacity. With its hub in Changi Airport, the carrier provides regional and cross-continental passenger and cargo services destined to or transiting through Singapore. The company operates under dual brands: full-service carrier SIA and low-cost regional carrier Scoot. It also owns stakes in SATS and SIA Engineering. In 2024, the merger of its associate airline Vistara with Air India resulted in Singapore Airlines owning a 25% stake in Air India.
81GF Score
Get the complete analysis for SGX:C6L
Cyclically Adjusted PS Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
SGX:C6L has been successfully added to your 
