Sienna Senior LivingTSX:SIA +1.09%74 Operating Margin % is 8.31% as of Mar. 2026, which is 3% below its 10-year median of 8.58. GuruFocus rates TSX:SIA with a GF Score™ of 74/100 and a GF Value™ of C$15.19 (Significantly Overvalued). The stock has 10 warning signs investors should review. Among 668 Healthcare Providers & Services companies, Sienna Senior Living ranks better than 68.71% on this metric.
Sienna Senior Living Inc operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for Sienna Senior Living's Operating Margin % or its related term are showing as below:
TSX:SIA'
s Operating Margin % Range Over the Past 10 Years
Min: 4.16 Med: 8.58 Max: 11.55
Current: 9.77
TSX:SIA's Operating Margin % is ranked better than 68.71% of 668
companies
in the Healthcare Providers & Services industry
Industry Median: 4.845
vs TSX:SIA: 9.77
Sienna Senior Living's 5-Year Average Operating Margin % Growth Rate was 16.30% per year.
Sienna Senior Living (TSX:SIA) Operating Margin % Explanation
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
Sienna Senior Living Operating Margin % Related Terms
Sienna Senior Living Operating Margin % Historical Data
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The historical data trend for Sienna Senior Living's Operating Margin % 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.
TSX:SIA vs HCA, THC, DVA: Operating Margin % Comparison
For the Medical Care Facilities subindustry, Sienna Senior Living's Operating Margin %, along with its competitors' market caps and Operating Margin % 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.
Sienna Senior Living Operating Margin % vs Healthcare Providers & Services Industry
For the Healthcare Providers & Services industry and Healthcare sector, Sienna Senior Living's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Sienna Senior Living's Operating Margin % falls into.
Sienna Senior Living Operating Margin % Calculation
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
Sienna Senior Living's Operating Margin % for the fiscal year that ended in Dec. 2025 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.
Sienna Senior Living (TSX:SIA) has a Operating Margin % of 8.31% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Sienna Senior Living and its competitors. This is near median its historical median of 8.58. Over the past decade, Sienna Senior Living's Operating Margin % has ranged from 4.16 to 11.55. According to the industry distribution chart, Sienna Senior Living ranks #209 out of 668 companies in the Healthcare Providers & Services industry, placing it in the top 31.3%.
Is Sienna Senior Living's Operating Margin % too high?
Sienna Senior Living's current Operating Margin % of 8.31% is near median its 10-year median of 8.58. Over the past 10 years, this metric has ranged from a low of 4.16 to a high of 11.55. The Healthcare Providers & Services industry median Operating Margin % is 4.85. Sienna Senior Living's value of 8.31% is 71.5% above this industry median. Based on the distribution chart, Sienna Senior Living ranks #209 out of 668 companies in the Healthcare Providers & Services industry, which is above the industry midpoint. Overall, Sienna Senior Living has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sienna Senior Living's Operating Margin % compare to HCA and THC?
According to the Healthcare Providers & Services industry distribution chart, Sienna Senior Living ranks #209 out of 668 companies for Operating Margin %. This puts Sienna Senior Living in the upper half of its industry. The industry median Operating Margin % is 4.85. Sienna Senior Living's value of 8.31% is 71.5% above this benchmark. Historically, Sienna Senior Living's own Operating Margin % has ranged from 4.16 to 11.55 over the past decade. While the company's 10-year median is 8.58 vs. the industry median of 4.85, Sienna Senior Living has consistently been above 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 Operating Margin % for a Healthcare Providers & Services company?
The median Operating Margin % among Healthcare Providers & Services companies is 4.85, based on 668 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sienna Senior Living's current Operating Margin % of 8.31% is 71.5% above 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Sienna Senior Living and its competitors. For the Healthcare Providers & Services industry, the median Operating Margin % is 4.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sienna Senior Living's current Operating Margin % is 8.31%, which is near median its own 10-year median of 8.58. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sienna Senior Living stock overvalued right now?
Based on GuruFocus' analysis, Sienna Senior Living (TSX:SIA) is currently considered Significantly Overvalued. The stock's GF Value™ is C$15.19, compared to a current price of C$22.28 — trading 46.7% above its estimated fair value. The current Operating Margin % is 8.31%, which is near median its 10-year median of 8.58 and 71.5% above the Healthcare Providers & Services industry median of 4.85. Sienna Senior Living's overall GF Score™ is 74/100 with 10 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Sienna Senior Living (TSX:SIA), the current Operating Margin % is 8.31% as of Mar. 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 Sienna Senior Living (TSX:SIA) Overvalued in 2026?
Based on GuruFocus' analysis, Sienna Senior Living stock appears to be overvalued.
The current stock price of C$22.28 is trading 46.7% above its estimated GF Value™ of C$15.19.
GuruFocus considers Sienna Senior Living to be Significantly Overvalued.
Key valuation signals for TSX:SIA:
Operating Margin %: 8.31% (near median its 10-year median of 8.58)
GF Value™: C$15.19 vs. price of C$22.28 (46.7% above fair value)
Industry Position: 71.5% above the Healthcare Providers & Services median (#209 of 668)
No single metric tells the full story. See the TSX:SIA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sienna Senior Living Inc is an owner of seniors' housing, a licensed long-term care operator in Ontario, and a provider of services across the full continuum of care. The firm operates solely within Canada. The company is comprised of the following main business segments, LTC, Retirement, and Other. LTC business division consists of approximately 34 LTC residences in the Province of Ontario, eight seniors' living residences located in the Province of British Columbia and the LTC management services business. The group derives a majority of its revenue from LTC segment.
74GF Score
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