DXCM (DexCom) Cyclically Adjusted Book per Share: $4.44 (As of Mar. 2026)


DXCM DexCom Inc DXCM
90 GF Score
Price $70.14
GF Value $103.58
Valuation Significantly Undervalued
! 3 Warning Signs
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What is DexCom Cyclically Adjusted Book per Share?

DexCom DXCM +2.17% 90 Cyclically Adjusted Book per Share is $4.44 as of Mar. 2026. GuruFocus rates DXCM with a GF Score™ of 90/100 and a GF Value™ of $103.58 (Significantly Undervalued). The stock has 3 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.

DexCom's adjusted book value per share for the three months ended in Mar. 2026 was $7.662. 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 $4.44 for the trailing ten years ended in Mar. 2026.

During the past 12 months, DexCom's average Cyclically Adjusted Book Growth Rate was 20.30% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 21.90% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 29.10% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 35.10% 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 DexCom was 44.80% per year. The lowest was 14.50% per year. And the median was 32.15% per year.

As of today (2026-06-27), DexCom's current stock price is $70.14. DexCom's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $4.44. DexCom's Cyclically Adjusted PB Ratio of today is 15.80.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of DexCom was 124.32. The lowest was 13.58. And the median was 52.42.


DexCom  (NAS:DXCM) 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.

DexCom's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=70.14/4.44
=15.80

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of DexCom was 124.32. The lowest was 13.58. And the median was 52.42.


Be Aware

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


DexCom Cyclically Adjusted Book per Share Related Terms


DexCom Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for DexCom'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.

DexCom Cyclically Adjusted Book per Share Chart

DexCom 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 1.70 2.32 2.92 3.52 4.20

DexCom Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 3.69 3.87 4.05 4.20 4.44

DXCM vs GEHC, STE, ZBH: Cyclically Adjusted Book per Share Comparison

For the Medical Devices subindustry, DexCom'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.


DexCom Cyclically Adjusted PB Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, DexCom's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


DXCM
90GF Score
DexCom Inc DXCM
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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DexCom 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, DexCom's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=7.662/330.2130*330.2130
=7.662

Current CPI (Mar. 2026) = 330.2130.

DexCom Quarterly Data

Book Value per Share CPI Adj_Book
201606 0.735 241.018 1.007
201609 0.775 241.428 1.060
201612 0.839 241.432 1.148
201703 0.805 243.801 1.090
201706 1.022 244.955 1.378
201709 1.105 246.819 1.478
201712 1.205 246.524 1.614
201803 1.197 249.554 1.584
201806 1.363 251.989 1.786
201809 1.583 252.439 2.071
201812 1.843 251.233 2.422
201903 1.837 254.202 2.386
201906 1.887 256.143 2.433
201909 2.088 256.759 2.685
201912 2.409 256.974 3.096
202003 2.531 258.115 3.238
202006 3.548 257.797 4.545
202009 3.904 260.280 4.953
202012 4.752 260.474 6.024
202103 4.920 264.877 6.134
202106 5.164 271.696 6.276
202109 5.511 274.310 6.634
202112 5.263 278.802 6.233
202203 5.579 287.504 6.408
202206 5.746 296.311 6.403
202209 4.724 296.808 5.256
202212 5.519 296.797 6.140
202303 5.761 301.836 6.303
202306 5.440 305.109 5.888
202309 5.869 307.789 6.297
202312 5.367 306.746 5.778
202403 5.672 312.332 5.997
202406 6.075 314.175 6.385
202409 5.067 315.301 5.307
202412 5.382 315.605 5.631
202503 5.781 319.799 5.969
202506 6.561 322.561 6.717
202509 6.990 324.800 7.106
202512 7.136 324.054 7.272
202603 7.662 330.213 7.662

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 $4.44 mean?
DexCom (DXCM) has a Cyclically Adjusted Book per Share of $4.44 as of Mar. 2026. 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 DexCom and its competitors.
Is DexCom's Cyclically Adjusted Book per Share too high?
DexCom's current Cyclically Adjusted Book per Share is $4.44. Overall, DexCom has a GF Score™ of 90/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does DexCom's Cyclically Adjusted Book per Share compare to GEHC and STE?
DexCom's Cyclically Adjusted Book per Share of $4.44 can be compared against companies in the Medical Devices & Instruments 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 Medical Devices & Instruments company?
A good Cyclically Adjusted Book per Share depends on the Medical Devices & Instruments 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 DexCom and its competitors. DexCom's current Cyclically Adjusted Book per Share is $4.44. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is DexCom stock overvalued right now?
Based on GuruFocus' analysis, DexCom (DXCM) is currently considered Significantly Undervalued. The stock's GF Value™ is $103.58, compared to a current price of $70.14 — trading 32.3% below its estimated fair value. The current Cyclically Adjusted Book per Share is $4.44. DexCom's overall GF Score™ is 90/100 with 3 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 DexCom (DXCM), the current Cyclically Adjusted Book per Share is $4.44 as of Mar. 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 DexCom (DXCM) Overvalued in 2026?

Based on GuruFocus' analysis, DexCom stock appears to be undervalued. The current stock price of $70.14 is trading 32.3% below its estimated GF Value™ of $103.58. GuruFocus considers DexCom to be Significantly Undervalued.

Key valuation signals for DXCM:

  • Cyclically Adjusted Book per Share: $4.44
  • GF Value™: $103.58 vs. price of $70.14 (32.3% below fair value)
  • GF Score™: 90/100 with 3 warning signs

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


DexCom Business Description

Address 6340 Sequence Drive, San Diego, CA, USA, 92121
DexCom designs and commercializes continuous glucose monitoring systems for diabetic patients. CGM systems serve as an alternative to the traditional blood glucose meter process, and the company is evolving its CGM systems to provide integration with insulin pumps from Insulet and Tandem for automatic insulin delivery. DexCom's CGMs are available through medical equipment distributors as well as retail pharmacies.
90GF Score

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

$70.14
Price
$103.58
GF Value