MNKD (MannKind) E10: $-0.12 (As of Jun. 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

MNKD MannKind Corp MNKD
66 GF Score
Price $4.20
GF Value $7.40
Valuation Possible Value Trap
! 8 Warning Signs
View Full Analysis

What is MannKind E10?

MannKind MNKD -4.44% 66 E10 is $-0.12 as of Jun. 2026. GuruFocus rates MNKD with a GF Score™ of 66/100 and a GF Value™ of $7.40 (Possible Value Trap). The stock has 8 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.

MannKind's adjusted earnings per share data for the three months ended in Jun. 2026 was $-0.060. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $-0.12 for the trailing ten years ended in Jun. 2026.

During the past 3 years, the average E10 Growth Rate was 48.60% per year. During the past 5 years, the average E10 Growth Rate was 36.10% per year. During the past 10 years, the average E10 Growth Rate was 28.50% per year. 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.

During the past 13 years, the highest 3-Year average E10 Growth Rate of MannKind was 48.60% per year. The lowest was 11.30% per year. And the median was 24.50% per year.

As of today (2026-08-20), MannKind's current stock price is $4.20. MannKind's E10 for the quarter that ended in Jun. 2026 was $-0.12. MannKind's Shiller PE Ratio of today is .


MannKind  (NAS:MNKD) 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.


MannKind E10 Related Terms


MannKind E10 Historical Data

* Premium members only.

The historical data trend for MannKind'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.

MannKind E10 Chart

MannKind 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 -1.92 -1.47 -1.10 -0.78 -0.20

MannKind 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 -0.66 -0.20 -0.16 -0.12

MNKD vs ABSI, ORIC, ARDX: E10 Comparison

For the Biotechnology subindustry, MannKind'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.


MannKind Shiller PE Ratio vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, MannKind's Shiller PE Ratio distribution charts can be found below:

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


MNKD
66GF Score
MannKind Corp MNKD
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

MannKind 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, MannKind'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)
=-0.06/333.9520*333.9520
=-0.060

Current CPI (Jun. 2026) = 333.9520.

MannKind Quarterly Data

per share eps CPI Adj_EPS
201609 1.310 241.428 1.812
201612 0.560 241.432 0.775
201703 -0.170 243.801 -0.233
201706 -0.350 244.955 -0.477
201709 -0.310 246.819 -0.419
201712 -0.280 246.524 -0.379
201803 -0.250 249.554 -0.335
201806 -0.160 251.989 -0.212
201809 -0.160 252.439 -0.212
201812 -0.040 251.233 -0.053
201903 -0.080 254.202 -0.105
201906 -0.070 256.143 -0.091
201909 -0.050 256.759 -0.065
201912 -0.070 256.974 -0.091
202003 -0.040 258.115 -0.052
202006 -0.050 257.797 -0.065
202009 -0.050 260.280 -0.064
202012 -0.110 260.474 -0.141
202103 -0.050 264.877 -0.063
202106 -0.140 271.696 -0.172
202109 -0.020 274.310 -0.024
202112 -0.110 278.802 -0.132
202203 -0.100 287.504 -0.116
202206 -0.110 296.311 -0.124
202209 -0.060 296.808 -0.068
202212 -0.070 296.797 -0.079
202303 -0.040 301.836 -0.044
202306 -0.020 305.109 -0.022
202309 0.010 307.789 0.011
202312 0.010 306.746 0.011
202403 0.040 312.332 0.043
202406 -0.010 314.175 -0.011
202409 0.040 315.301 0.042
202412 0.030 315.605 0.032
202503 0.040 319.799 0.042
202506 0.000 322.561 0.000
202509 0.030 324.800 0.031
202512 -0.050 324.054 -0.052
202603 -0.050 330.213 -0.051
202606 -0.060 333.952 -0.060

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 $-0.12 mean?
MannKind (MNKD) has a E10 of $-0.12 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on MannKind and its competitors.
Is MannKind's E10 too high?
MannKind's current E10 is $-0.12. Overall, MannKind has a GF Score™ of 66/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does MannKind's E10 compare to ABSI and ORIC?
MannKind's E10 of $-0.12 can be compared against companies in the Biotechnology 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 Biotechnology company?
A good E10 depends on the Biotechnology 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 MannKind and its competitors. MannKind's current E10 is $-0.12. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is MannKind stock overvalued right now?
Based on GuruFocus' analysis, MannKind (MNKD) is currently considered Possible Value Trap. The stock's GF Value™ is $7.40, compared to a current price of $4.20 — trading 43.2% below its estimated fair value. The current E10 is $-0.12. MannKind's overall GF Score™ is 66/100 with 8 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 MannKind (MNKD), the current E10 is $-0.12 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 MannKind (MNKD) Overvalued in 2026?

Based on GuruFocus' analysis, MannKind stock appears to be undervalued. The current stock price of $4.20 is trading 43.2% below its estimated GF Value™ of $7.40. GuruFocus considers MannKind to be Possible Value Trap.

Key valuation signals for MNKD:

  • E10: $-0.12
  • GF Value™: $7.40 vs. price of $4.20 (43.2% below fair value)
  • GF Score™: 66/100 with 8 warning signs

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


MannKind Business Description

Other Exchanges NNFN:Germany
Address 1 Casper Street, Danbury, CT, USA, 06810
MannKind Corp is a biopharmaceutical company focused on the development and commercialization of patient-centric therapies that address serious unmet medical needs for those living with cardiometabolic and orphan lung diseases. The Company is currently commercializing three products: Afrezza (insulin human) Inhalation Powder, an ultra rapid-acting inhaled insulin indicated to improve glycemic control in adults with diabetes; Furoscix (furosemide injection), to treat fluid buildup in patients with chronic heart failure or chronic kidney disease; and the V-Go wearable insulin delivery device, which provides continuous subcutaneous infusion of insulin in adults that require insulin.
66GF Score

Get the complete analysis for MNKD

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

$4.20
Price
$7.40
GF Value