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.
12-1 Month Momentum % is the total return of the stock from 12-month ago to 1-month ago. As of today (2026-08-06), Extra Space Storage's 12-1 Month Momentum % is -7.83%.
The industry rank for Extra Space Storage's 12-1 Month Momentum % or its related term are showing as below:
MEX:EXR's 12-1 Month Momentum % is ranked better than 67.75% of 952
companies
in the REITs industry
Industry Median: 0.22
vs MEX:EXR: -7.83
Extra Space Storage (MEX:EXR) 12-1 Month Momentum % Explanation
Momentum investing is a trading strategy in which investors buy securities that are rising and sell before the prices start to go back down. The 12-1 Month Momentum % measures the total return to a stock over the past twelve months, but ignores the previous month.
The reason why the most recent month’s return dropped related to the short-term reversal effect associated with momentum. There is an academic finding that short-term momentum actually has a reversal effect, whereby the previous winners (measured over the past months) do poorly the next month, while the previous losers do well the next month. In order to eliminate the short-term reversal effect, the previous month return was not included in this calculation.
Extra Space Storage 12-1 Month Momentum % Related Terms
MEX:EXR vs EGP, CUBE, LINE: 12-1 Month Momentum % Comparison
For the REIT - Industrial subindustry, Extra Space Storage's 12-1 Month Momentum %, along with its competitors' market caps and 12-1 Month Momentum % 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.
Extra Space Storage 12-1 Month Momentum % vs REITs Industry
For the REITs industry and Real Estate sector, Extra Space Storage's 12-1 Month Momentum % distribution charts can be found below:
* The bar in red indicates where Extra Space Storage's 12-1 Month Momentum % falls into.
Extra Space Storage (MEX:EXR) 12-1 Month Momentum % Calculation
12-1 Month Momentum % is calculated as following:
12-1 Month Momentum %
=
( Price 1-month ago
/
Price 12-month ago
- 1 )
*
100 %
* 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.
Extra Space Storage (MEX:EXR) has a 12-1 Month Momentum % of -7.83% as of Aug. 06, 2026. 12-1 Month Momentum measures the total return of the stock from 12-month ago to 1-month ago. View historical data on Extra Space Storage and its competitors. According to the industry distribution chart, Extra Space Storage ranks #307 out of 952 companies in the REITs industry, placing it in the top 32.2%.
Is Extra Space Storage's 12-1 Month Momentum % too high?
Extra Space Storage's current 12-1 Month Momentum % is -7.83%. Based on the distribution chart, Extra Space Storage ranks #307 out of 952 companies in the REITs industry, which is above the industry midpoint. Overall, Extra Space Storage has a GF Score™ of 93/100, reflecting its overall financial health beyond just this single metric.
How does Extra Space Storage's 12-1 Month Momentum % compare to EGP and CUBE?
According to the REITs industry distribution chart, Extra Space Storage ranks #307 out of 952 companies for 12-1 Month Momentum %. This puts Extra Space Storage in the upper half of its industry. The industry median 12-1 Month Momentum % is 0.22. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 12-1 Month Momentum % for a REITs company?
The median 12-1 Month Momentum % among REITs companies is 0.22, based on 952 companies in the industry. Companies in the top quartile (top 25%) have a 12-1 Month Momentum % significantly above this median, while those in the bottom quartile fall well below. However, 12-1 Month Momentum % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 12-1 Month Momentum % mean?
A high 12-1 Month Momentum % can signal that a stock is expensive relative to its fundamentals. 12-1 Month Momentum measures the total return of the stock from 12-month ago to 1-month ago. View historical data on Extra Space Storage and its competitors. For the REITs industry, the median 12-1 Month Momentum % is 0.22 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Extra Space Storage's current 12-1 Month Momentum % is -7.83%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Extra Space Storage stock overvalued right now?
Extra Space Storage (MEX:EXR) has a current 12-1 Month Momentum % of -7.83%. The stock's GF Value™ is MXN2,568.02, compared to a current price of MXN2,608.00 — trading 1.6% above its estimated fair value. The current 12-1 Month Momentum % is -7.83%. Extra Space Storage's overall GF Score™ is 93/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 12-1 Month Momentum % calculated?
12-1 Month Momentum % is calculated from a company's financial statements. For Extra Space Storage (MEX:EXR), the current 12-1 Month Momentum % is -7.83% as of Aug. 06, 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 Extra Space Storage (MEX:EXR) Overvalued in 2026?
Based on GuruFocus' analysis, Extra Space Storage stock appears to be overvalued.
The current stock price of MXN2,608.00 is trading 1.6% above its estimated GF Value™ of MXN2,568.02.
Key valuation signals for MEX:EXR:
12-1 Month Momentum %: -7.83%
GF Value™: MXN2,568.02 vs. price of MXN2,608.00 (1.6% above fair value)
No single metric tells the full story. See the MEX:EXR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Extra Space Storage is a fully integrated real estate investment trust that owns, operates, and manages more than 4,200 self-storage properties in 43 states, with over 330 million net rentable square feet of storage space. Of these properties, approximately one half is wholly owned, while some facilities are owned through joint ventures and others are owned by third parties and managed by Extra Space Storage in exchange for a management fee.
93GF Score
Get the complete analysis for MEX:EXR
12-1 Month Momentum % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
MEX:EXR has been successfully added to your 
