FALC (FalconStor Software) Cyclically Adjusted Book per Share: $-17.99 (As of Dec. 2025)

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FALC FalconStor Software Inc FALC
53 GF Score
Price $1.84
GF Value $1.47
Valuation Modestly Overvalued
! 5 Warning Signs
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What is FalconStor Software Cyclically Adjusted Book per Share?

FalconStor Software FALC 53 Cyclically Adjusted Book per Share is $-17.99 as of Dec. 2025. GuruFocus rates FALC with a GF Score™ of 53/100 and a GF Value™ of $1.47 (Modestly Overvalued). The stock has 5 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

FalconStor Software's adjusted book value per share for the three months ended in Dec. 2025 was $-2.627. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $-17.99 for the trailing ten years ended in Dec. 2025.

During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -4.20% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -41.20% 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 Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of FalconStor Software was 5.40% per year. The lowest was -98.00% per year. And the median was -9.60% per year.

As of today (2026-09-11), FalconStor Software's current stock price is $1.84. FalconStor Software's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was $-17.99. FalconStor Software's Cyclically Adjusted PB Ratio of today is .

During the past 13 years, the highest Cyclically Adjusted PB Ratio of FalconStor Software was 32.00. The lowest was 0.11. And the median was 0.42.


FalconStor Software  (OTCPK:FALC) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of FalconStor Software was 32.00. The lowest was 0.11. And the median was 0.42.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


FalconStor Software Cyclically Adjusted Book per Share Related Terms


FalconStor Software Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for FalconStor Software's Cyclically Adjusted Book per Share 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.

FalconStor Software Cyclically Adjusted Book per Share Chart

FalconStor Software Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only -10.49 -15.89 -18.56 -19.24 -17.99

FalconStor Software Quarterly Data
Sep20 Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Jun24 Sep24 Dec24 Jun25 Sep25 Dec25
Cyclically Adjusted Book per Share 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 -19.41 -19.24 -18.85 -18.62 -17.99

FALC vs INUV, NVNI, QH: Cyclically Adjusted Book per Share Comparison

For the Software - Application subindustry, FalconStor Software'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.


FalconStor Software Cyclically Adjusted PB Ratio vs Software Industry

For the Software industry and Technology sector, FalconStor Software's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


FALC
53GF Score
FalconStor Software Inc FALC
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

FalconStor Software Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

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

For example, FalconStor Software's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=-2.627/324.0540*324.0540
=-2.627

Current CPI (Dec. 2025) = 324.0540.

FalconStor Software Quarterly Data

Book Value per Share CPI Adj_Book
201509 -25.442 237.945 -34.649
201512 -28.079 236.525 -38.470
201603 -36.411 238.132 -49.549
201606 -42.303 241.018 -56.877
201609 -46.179 241.428 -61.983
201612 -49.325 241.432 -66.205
201703 -51.514 243.801 -68.471
201706 -52.892 244.955 -69.971
201709 -50.401 246.819 -66.173
201712 -47.590 246.524 -62.557
201803 -32.390 249.554 -42.059
201806 -11.685 251.989 -15.027
201809 -12.285 252.439 -15.770
201812 -1.833 251.233 -2.364
201903 -2.048 254.202 -2.611
201906 -2.314 256.143 -2.928
201909 -2.486 256.759 -3.138
201912 -2.371 256.974 -2.990
202003 -2.546 258.115 -3.196
202006 -2.550 257.797 -3.205
202009 -2.367 260.280 -2.947
202012 -2.612 260.474 -3.250
202103 -2.448 264.877 -2.995
202106 -1.847 271.696 -2.203
202109 -1.626 274.310 -1.921
202112 -1.866 278.802 -2.169
202203 -2.026 287.504 -2.284
202206 -2.183 296.311 -2.387
202209 -2.208 296.808 -2.411
202212 -2.305 296.797 -2.517
202303 -2.410 301.836 -2.587
202306 -2.522 305.109 -2.679
202309 -2.461 307.789 -2.591
202312 -2.379 306.746 -2.513
202406 -2.512 314.175 -2.591
202409 -2.501 315.301 -2.570
202412 -2.579 315.605 -2.648
202506 -2.747 322.561 -2.760
202509 -2.806 324.800 -2.800
202512 -2.627 324.054 -2.627

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

What does a Cyclically Adjusted Book per Share of $-17.99 mean?
FalconStor Software (FALC) has a Cyclically Adjusted Book per Share of $-17.99 as of Dec. 2025. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on FalconStor Software and its competitors.
Is FalconStor Software's Cyclically Adjusted Book per Share too high?
FalconStor Software's current Cyclically Adjusted Book per Share is $-17.99. Overall, FalconStor Software has a GF Score™ of 53/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does FalconStor Software's Cyclically Adjusted Book per Share compare to INUV and NVNI?
FalconStor Software's Cyclically Adjusted Book per Share of $-17.99 can be compared against companies in the Software industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Software company?
A good Cyclically Adjusted Book per Share depends on the Software industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on FalconStor Software and its competitors. FalconStor Software's current Cyclically Adjusted Book per Share is $-17.99. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is FalconStor Software stock overvalued right now?
Based on GuruFocus' analysis, FalconStor Software (FALC) is currently considered Modestly Overvalued. The stock's GF Value™ is $1.47, compared to a current price of $1.84 — trading 25.2% above its estimated fair value. The current Cyclically Adjusted Book per Share is $-17.99. FalconStor Software's overall GF Score™ is 53/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For FalconStor Software (FALC), the current Cyclically Adjusted Book per Share is $-17.99 as of Dec. 2025. 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 FalconStor Software (FALC) Overvalued in 2026?

Based on GuruFocus' analysis, FalconStor Software stock appears to be overvalued. The current stock price of $1.84 is trading 25.2% above its estimated GF Value™ of $1.47. GuruFocus considers FalconStor Software to be Modestly Overvalued.

Key valuation signals for FALC:

  • Cyclically Adjusted Book per Share: $-17.99
  • GF Value™: $1.47 vs. price of $1.84 (25.2% above fair value)
  • GF Score™: 53/100 with 5 warning signs

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


FalconStor Software Business Description

Address 111 Congress Avenue, Suite 500, Austin, TX, USA, 78701
FalconStor Software Inc operates in the trusted data protection software industry, modernizing disaster recovery and backup operations for the hybrid cloud environment. The company enables enterprise customers and managed service providers to secure, migrate, and protect their data while reducing storage costs and long-term retention needs. Its products are StorSafe, StorGuard, and StorSight, which deliver data protection, cloud migration, disaster recovery, ransomware recovery, and needs across multi-OS, multi-storage, and on-premises to cloud/hybrid cloud environments. The company's geographical markets include the Americas, which generate the highest revenue, Europe, the Middle East, Africa, and others.
53GF Score

Get the complete analysis for FALC

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

$1.84
Price
$1.47
GF Value