SL Green RealtyMEX:SLG 52 Piotroski F-Score is 3 as of Jun. 25, 2026, which is 50% below its 10-year median of 6.00. GuruFocus rates MEX:SLG with a GF Score™ of 52/100 and a GF Value™ of MXN714.08 (Fairly Valued). The stock has 11 warning signs investors should review. Among 888 REITs companies, SL Green Realty ranks worse than 89.41% on this metric.
Warning Sign:
Piotroski F-Score of 3 is low, which usually implies poor business operation.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
SL Green Realty has an F-score of 3. It is a bad or low score, which usually implies poor business operation.
The historical rank and industry rank for SL Green Realty's Piotroski F-Score or its related term are showing as below:
MEX:SLG'
s Piotroski F-Score Range Over the Past 10 Years
Min: 3 Med: 6 Max: 8
Current: 3
During the past 13 years, the highest Piotroski F-Score of SL Green Realty was 8. The lowest was 3. And the median was 6.
SL Green Realty (MEX:SLG) Piotroski F-Score Explanation
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
SL Green Realty Piotroski F-Score Related Terms
SL Green Realty Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for SL Green Realty's Piotroski F-Score 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.
MEX:SLG vs HIW, CDP, KRC: Piotroski F-Score Comparison
For the REIT - Office subindustry, SL Green Realty's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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.
SL Green Realty Piotroski F-Score vs REITs Industry
For the REITs industry and Real Estate sector, SL Green Realty's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where SL Green Realty's Piotroski F-Score falls into.
* 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.
This Year (Mar26) TTM:
Last Year (Mar25) TTM:
Net Income was -97.949 + 564.378 + -1776.406 + -1414.737 = MXN-2,725 Mil. Cash Flow from Operations was 1025.965 + -124.337 + 512.91 + -317.159 = MXN1,097 Mil. Revenue was 4158.749 + 4292.158 + 4710.309 + 4299.555 = MXN17,461 Mil. Gross Profit was 1873.75 + 1748.844 + 2116.3 + 1849.993 = MXN7,589 Mil.
Average Total Assets from the begining of this year (Mar25)
to the end of this year (Mar26) was
(233440.808 + 211872.353 + 204430.278 + 199550.097 + 212042.011) / 5 = MXN212267.1094 Mil. Total Assets at the begining of this year (Mar25) was MXN233,441 Mil. Long-Term Debt & Capital Lease Obligation was MXN84,648 Mil. Total Current Assets was MXN35,109 Mil. Total Current Liabilities was MXN24,540 Mil.
Net Income was 72.969 + -145.019 + 318.112 + -310.617 = MXN-65 Mil.
Revenue was 4082.085 + 4428.742 + 4831.64 + 4579.875 = MXN17,922 Mil. Gross Profit was 2070.501 + 2010.321 + 2331.667 + 2102.305 = MXN8,515 Mil.
Average Total Assets from the begining of last year (Mar24)
to the end of last year (Mar25) was
(162050.68 + 174932.288 + 201157.523 + 218361.244 + 233440.808) / 5 = MXN197988.5086 Mil. Total Assets at the begining of last year (Mar24) was MXN162,051 Mil. Long-Term Debt & Capital Lease Obligation was MXN87,739 Mil. Total Current Assets was MXN46,651 Mil. Total Current Liabilities was MXN16,706 Mil.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
SL Green Realty's current Net Income (TTM) was -2,725.
==> Negative ==> Score 0.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
SL Green Realty's return on assets of this year was -0.01167197. SL Green Realty's return on assets of last year was -0.00039836.
==> Last year is higher ==> Score 0.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
SL Green Realty's gearing of this year was 0.39878287. SL Green Realty's gearing of last year was 0.44314982.
==> This year is lower or equal to last year. ==> Score 1.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
SL Green Realty's current ratio of this year was 1.430693. SL Green Realty's current ratio of last year was 2.7925141.
==> Last year's current ratio is higher ==> Score 0.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
SL Green Realty's number of shares in issue this year was 70.687. SL Green Realty's number of shares in issue last year was 70.424.
==> There is larger number of shares in issue this year. ==> Score 0.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
SL Green Realty's gross margin of this year was 0.43462497. SL Green Realty's gross margin of last year was 0.47509382.
==> Last year's gross margin is higher ==> Score 0.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
SL Green Realty's asset turnover of this year was 0.07479742. SL Green Realty's asset turnover of last year was 0.11059714.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
Piotroski F-Score
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
SL Green Realty has an F-score of 3. It is a bad or low score, which usually implies poor business operation.
SL Green Realty (MEX:SLG) has a Piotroski F-Score of 3 as of Jun. 25, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on SL Green Realty and its competitors. This is 50% below median its historical median of 6.00. Over the past decade, SL Green Realty's Piotroski F-Score has ranged from 3.00 to 8.00. According to the industry distribution chart, SL Green Realty ranks #794 out of 888 companies in the REITs industry, placing it in the top 89.4%.
Is SL Green Realty's Piotroski F-Score too high?
SL Green Realty's current Piotroski F-Score of 3 is 50% below median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 8.00. The REITs industry median Piotroski F-Score is 6.00. SL Green Realty's value of 3 is 50% below this industry median. Based on the distribution chart, SL Green Realty ranks #794 out of 888 companies in the REITs industry, which is in the bottom quartile relative to peers. Overall, SL Green Realty has a GF Score™ of 52/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does SL Green Realty's Piotroski F-Score compare to HIW and CDP?
According to the REITs industry distribution chart, SL Green Realty ranks #794 out of 888 companies for Piotroski F-Score. This places SL Green Realty in the lower half of its industry. The industry median Piotroski F-Score is 6.00. SL Green Realty's value of 3 is 50% below this benchmark. Historically, SL Green Realty's own Piotroski F-Score has ranged from 3.00 to 8.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 6.00, SL Green Realty 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 Piotroski F-Score for a REITs company?
The median Piotroski F-Score among REITs companies is 6.00, based on 888 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. SL Green Realty's current Piotroski F-Score of 3 is 50% 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on SL Green Realty and its competitors. For the REITs industry, the median Piotroski F-Score is 6.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. SL Green Realty's current Piotroski F-Score is 3, which is 50% below median its own 10-year median of 6.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is SL Green Realty stock overvalued right now?
Based on GuruFocus' analysis, SL Green Realty (MEX:SLG) is currently considered Fairly Valued. The stock's GF Value™ is MXN714.08, compared to a current price of MXN743.00 — trading 4% above its estimated fair value. The current Piotroski F-Score is 3, which is 50% below median its 10-year median of 6.00 and 50% below the REITs industry median of 6.00. SL Green Realty's overall GF Score™ is 52/100 with 11 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For SL Green Realty (MEX:SLG), the current Piotroski F-Score is 3 as of Jun. 25, 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 SL Green Realty (MEX:SLG) Overvalued in 2026?
Based on GuruFocus' analysis, SL Green Realty stock appears to be overvalued.
The current stock price of MXN743.00 is trading 4% above its estimated GF Value™ of MXN714.08.
GuruFocus considers SL Green Realty to be Fairly Valued.
Key valuation signals for MEX:SLG:
Piotroski F-Score: 3 (50% below median its 10-year median of 6.00)
GF Value™: MXN714.08 vs. price of MXN743.00 (4% above fair value)
Industry Position: 50% below the REITs median (#794 of 888)
No single metric tells the full story. See the MEX:SLG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
SL Green Realty is one of the largest Manhattan property owners and landlords, with interest in around 31.4 million square feet of wholly owned and joint-venture office space. The company has additional property exposure through its limited portfolio of well-located retail space. It operates as a real estate investment trust.
52GF Score
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