MNKD (MannKind) Cyclically Adjusted PB Ratio: (As of Aug. 20, 2026)

Author: Vera Yuan Vera Yuan
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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
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
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What is MannKind Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


MannKind  (NAS:MNKD) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


MannKind Cyclically Adjusted PB Ratio Related Terms


MannKind Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for MannKind's Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio Chart

MannKind Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

MannKind Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB Ratio 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 0.00 0.00 0.00

MNKD vs ABSI, ORIC, ARDX: Cyclically Adjusted PB Ratio Comparison

For the Biotechnology subindustry, MannKind's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, MannKind's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where MannKind's Cyclically Adjusted PB Ratio falls into.


MNKD
66GF Score
MannKind Corp MNKD
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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MannKind Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

MannKind's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, MannKind's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=-0.217/333.9520*333.9520
=-0.217

Current CPI (Jun. 2026) = 333.9520.

MannKind Quarterly Data

Book Value per Share CPI Adj_Book
201609 -2.495 241.428 -3.451
201612 -1.919 241.432 -2.654
201703 -2.075 243.801 -2.842
201706 -2.115 244.955 -2.883
201709 -2.397 246.819 -3.243
201712 -1.804 246.524 -2.444
201803 -1.771 249.554 -2.370
201806 -1.419 251.989 -1.881
201809 -1.288 252.439 -1.704
201812 -0.936 251.233 -1.244
201903 -1.001 254.202 -1.315
201906 -1.035 256.143 -1.349
201909 -0.895 256.759 -1.164
201912 -0.900 256.974 -1.170
202003 -0.929 258.115 -1.202
202006 -0.785 257.797 -1.017
202009 -0.807 260.280 -1.035
202012 -0.745 260.474 -0.955
202103 -0.697 264.877 -0.879
202106 -0.735 271.696 -0.903
202109 -0.738 274.310 -0.898
202112 -0.832 278.802 -0.997
202203 -0.919 287.504 -1.067
202206 -0.960 296.311 -1.082
202209 -0.903 296.808 -1.016
202212 -0.950 296.797 -1.069
202303 -0.966 301.836 -1.069
202306 -0.971 305.109 -1.063
202309 -0.934 307.789 -1.013
202312 -0.912 306.746 -0.993
202403 -0.849 312.332 -0.908
202406 -0.823 314.175 -0.875
202409 -0.761 315.301 -0.806
202412 -0.260 315.605 -0.275
202503 -0.193 319.799 -0.202
202506 -0.180 322.561 -0.186
202509 -0.145 324.800 -0.149
202512 -0.166 324.054 -0.171
202603 -0.192 330.213 -0.194
202606 -0.217 333.952 -0.217

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

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.

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 43.3% below its estimated GF Value™ of $7.40. GuruFocus considers MannKind to be Possible Value Trap.

Key valuation signals for MNKD:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $7.40 vs. price of $4.20 (43.3% 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

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

$4.20
Price
$7.40
GF Value