Zamp (BSP:ZAMP3) E10: R$-31.05 (As of Jun. 2026)

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.
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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.

BSP:ZAMP3 Zamp SA BSP:ZAMP3
79 GF Score
Price R$3.50
GF Value R$3.19
! 4 Warning Signs
View Full Analysis

What is Zamp E10?

Zamp BSP:ZAMP3 79 E10 is R$-31.05 as of Jun. 2026. GuruFocus rates BSP:ZAMP3 with a GF Score™ of 79/100 and a GF Value™ of R$3.19. The stock has 4 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Zamp's adjusted earnings per share data for the three months ended in Jun. 2026 was R$-114.845. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is R$-31.05 for the trailing ten years ended in Jun. 2026.

Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the E10 growth rate using E10 data.

As of today (2026-09-04), Zamp's current stock price is R$3.50. Zamp's E10 for the quarter that ended in Jun. 2026 was R$-31.05. Zamp's Shiller PE Ratio of today is .


Zamp  (BSP:ZAMP3) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


Zamp E10 Related Terms


Zamp E10 Historical Data

* Premium members only.

The historical data trend for Zamp's E10 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.

Zamp E10 Chart

Zamp Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 -19.90

Zamp Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
E10 Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 -19.90 -19.79 -31.05

BSP:ZAMP3 vs MCD, SBUX, CMG: E10 Comparison

For the Restaurants subindustry, Zamp's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.


Zamp Shiller PE Ratio vs Restaurants Industry

For the Restaurants industry and Consumer Cyclical sector, Zamp's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Zamp's Shiller PE Ratio falls into.


BSP:ZAMP3
79GF Score
Zamp SA BSP:ZAMP3
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Zamp E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

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.

For example, Zamp's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=-114.845/177.5443*177.5443
=-114.845

Current CPI (Jun. 2026) = 177.5443.

Zamp Quarterly Data

per share eps CPI Adj_EPS
201609 -0.184 109.986 -0.297
201612 -0.207 110.802 -0.332
201703 -0.130 111.869 -0.206
201706 0.045 112.115 0.071
201709 -0.022 112.777 -0.035
201712 0.141 114.068 0.219
201803 0.039 114.868 0.060
201806 0.038 117.038 0.058
201809 0.118 117.881 0.178
201812 0.367 118.340 0.551
201903 0.013 120.124 0.019
201906 -0.006 120.977 -0.009
201909 0.024 121.292 0.035
201912 0.181 123.436 0.260
202003 -0.243 124.092 -0.348
202006 -0.817 123.557 -1.174
202009 -0.463 125.095 -0.657
202012 -0.378 129.012 -0.520
202103 -0.588 131.660 -0.793
202106 -0.352 133.871 -0.467
202109 -0.137 137.913 -0.176
202112 0.086 141.992 0.108
202203 -0.114 146.537 -0.138
202206 -0.115 149.784 -0.136
202209 -0.126 147.800 -0.151
202212 0.152 150.207 0.180
202303 -0.200 153.352 -0.232
202306 -0.230 154.519 -0.264
202309 -0.141 155.464 -0.161
202312 0.217 157.148 0.245
202403 -0.331 159.372 -0.369
202406 -0.101 161.052 -0.111
202409 -0.119 162.342 -0.130
202412 -0.142 164.740 -0.153
202503 -0.157 168.102 -0.166
202506 -181.732 169.670 -190.166
202509 -0.238 170.739 -0.247
202512 0.079 171.765 0.082
202603 -0.273 175.066 -0.277
202606 -114.845 177.544 -114.845

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of R$-31.05 mean?
Zamp (BSP:ZAMP3) has a E10 of R$-31.05 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Zamp and its competitors.
Is Zamp's E10 too high?
Zamp's current E10 is R$-31.05. Overall, Zamp has a GF Score™ of 79/100, reflecting its overall financial health beyond just this single metric.
How does Zamp's E10 compare to MCD and SBUX?
Zamp's E10 of R$-31.05 can be compared against companies in the Restaurants industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for a Restaurants company?
A good E10 depends on the Restaurants industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Zamp and its competitors. Zamp's current E10 is R$-31.05. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Zamp stock overvalued right now?
Zamp (BSP:ZAMP3) has a current E10 of R$-31.05. The stock's GF Value™ is R$3.19, compared to a current price of R$3.50 — trading 9.7% above its estimated fair value. The current E10 is R$-31.05. Zamp's overall GF Score™ is 79/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For Zamp (BSP:ZAMP3), the current E10 is R$-31.05 as of Jun. 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 Zamp (BSP:ZAMP3) Overvalued in 2026?

Based on GuruFocus' analysis, Zamp stock appears to be overvalued. The current stock price of R$3.50 is trading 9.7% above its estimated GF Value™ of R$3.19.

Key valuation signals for BSP:ZAMP3:

  • E10: R$-31.05
  • GF Value™: R$3.19 vs. price of R$3.50 (9.7% above fair value)
  • GF Score™: 79/100 with 4 warning signs

No single metric tells the full story. See the BSP:ZAMP3 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Zamp Business Description

Address 120 Rua Lemos Monteiro, Butanta, Sao Paulo, SP, BRA
Zamp SA operates restaurants. The company develops and administers restaurants under the brand Burger King, which is located in Brazil. Its products consist of burgers, salads, soft drinks, desserts, and beverages. It operates a brand, Popeyes, a fried chicken restaurant chain, and a fast food brand. It also includes brands such as Starbucks and Subway. Geographically, operates in the Brazil itself.
79GF Score

Get the complete analysis for BSP:ZAMP3

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

R$3.50
Price
R$3.19
GF Value