Rambus (LTS:0QYL) Cyclically Adjusted Book per Share: $9.97 (As of Jun. 2026)

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LTS:0QYL Rambus Inc LTS:0QYL
90 GF Score
Price $98.86
GF Value $96.82
Valuation Fairly Valued
! 1 Warning Sign
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What is Rambus Cyclically Adjusted Book per Share?

Rambus LTS:0QYL +0.06% 90 Cyclically Adjusted Book per Share is $9.97 as of Jun. 2026. GuruFocus rates LTS:0QYL with a GF Score™ of 90/100 and a GF Value™ of $96.82 (Fairly Valued). The stock has 1 warning sign 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.

Rambus's adjusted book value per share for the three months ended in Jun. 2026 was $13.522. 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 $9.97 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Rambus's average Cyclically Adjusted Book Growth Rate was 10.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 9.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 10.50% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 11.30% 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 Rambus was 14.70% per year. The lowest was 1.40% per year. And the median was 9.00% per year.

As of today (2026-08-07), Rambus's current stock price is $98.86. Rambus's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $9.97. Rambus's Cyclically Adjusted PB Ratio of today is 9.92.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Rambus was 15.92. The lowest was 1.66. And the median was 3.73.


Rambus  (LTS:0QYL) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=98.86/9.97
=9.92

* 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 Rambus was 15.92. The lowest was 1.66. And the median was 3.73.


Be Aware

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


Rambus Cyclically Adjusted Book per Share Related Terms


Rambus Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Rambus'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.

Rambus Cyclically Adjusted Book per Share Chart

Rambus 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 6.55 7.24 8.02 8.84 9.71

Rambus Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 9.28 9.45 9.71 9.97 9.97

LTS:0QYL vs SIMO, SMTC, SWKS: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, Rambus'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.


Rambus Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


LTS:0QYL
90GF Score
Rambus Inc LTS:0QYL
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Rambus 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, Rambus'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)
=13.522/333.9520*333.9520
=13.522

Current CPI (Jun. 2026) = 333.9520.

Rambus Quarterly Data

Book Value per Share CPI Adj_Book
201609 5.005 241.428 6.923
201612 4.978 241.432 6.886
201703 5.384 243.801 7.375
201706 5.218 244.955 7.114
201709 5.370 246.819 7.266
201712 5.207 246.524 7.054
201803 10.411 249.554 13.932
201806 10.298 251.989 13.648
201809 9.293 252.439 12.294
201812 9.284 251.233 12.341
201903 9.057 254.202 11.898
201906 8.758 256.143 11.418
201909 8.622 256.759 11.214
201912 8.699 256.974 11.305
202003 8.525 258.115 11.030
202006 8.486 257.797 10.993
202009 8.411 260.280 10.792
202012 8.171 260.474 10.476
202103 8.083 264.877 10.191
202106 7.627 271.696 9.375
202109 7.752 274.310 9.437
202112 7.891 278.802 9.452
202203 7.195 287.504 8.357
202206 7.583 296.311 8.546
202209 6.977 296.808 7.850
202212 7.242 296.797 8.149
202303 6.998 301.836 7.743
202306 8.664 305.109 9.483
202309 8.888 307.789 9.644
202312 9.625 306.746 10.479
202403 9.200 312.332 9.837
202406 9.555 314.175 10.156
202409 9.749 315.301 10.326
202412 10.489 315.605 11.099
202503 10.798 319.799 11.276
202506 11.413 322.561 11.816
202509 11.969 324.800 12.306
202512 12.659 324.054 13.046
202603 12.884 330.213 13.030
202606 13.522 333.952 13.522

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 $9.97 mean?
Rambus (LTS:0QYL) has a Cyclically Adjusted Book per Share of $9.97 as of Jun. 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 Rambus and its competitors.
Is Rambus' Cyclically Adjusted Book per Share too high?
Rambus' current Cyclically Adjusted Book per Share is $9.97. Overall, Rambus has a GF Score™ of 90/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Rambus' Cyclically Adjusted Book per Share compare to SIMO and SMTC?
Rambus' Cyclically Adjusted Book per Share of $9.97 can be compared against companies in the Semiconductors 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 Semiconductors company?
A good Cyclically Adjusted Book per Share depends on the Semiconductors 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 Rambus and its competitors. Rambus's current Cyclically Adjusted Book per Share is $9.97. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rambus stock overvalued right now?
Based on GuruFocus' analysis, Rambus (LTS:0QYL) is currently considered Fairly Valued. The stock's GF Value™ is $96.82, compared to a current price of $98.86 — trading 2.1% above its estimated fair value. The current Cyclically Adjusted Book per Share is $9.97. Rambus' overall GF Score™ is 90/100 with 1 warning sign 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 Rambus (LTS:0QYL), the current Cyclically Adjusted Book per Share is $9.97 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 Rambus (LTS:0QYL) Overvalued in 2026?

Based on GuruFocus' analysis, Rambus stock appears to be overvalued. The current stock price of $98.86 is trading 2.1% above its estimated GF Value™ of $96.82. GuruFocus considers Rambus to be Fairly Valued.

Key valuation signals for LTS:0QYL:

  • Cyclically Adjusted Book per Share: $9.97
  • GF Value™: $96.82 vs. price of $98.86 (2.1% above fair value)
  • GF Score™: 90/100 with 1 warning sign

No single metric tells the full story. See the LTS:0QYL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Rambus Business Description

Address 4453 North First Street, Suite 100, San Jose, CA, USA, 95134
Rambus Inc is a semiconductor company providing chips and silicon IP for data-intensive computing systems, focusing on data center and artificial intelligence (AI) infrastructure. The company is at the forefront of enabling the next era of AI-driven computing, addressing challenges of signal and power integrity at increasingly extreme data rates across the data center, edge, and client markets. It offers high-performance memory subsystems, with a balanced and diverse portfolio of products, IP, and patents that maximize performance and security in computationally intensive systems. The company operates in South Korea, Singapore, the United States, and other countries, with the majority of its revenue coming from South Korea.
90GF Score

Get the complete analysis for LTS:0QYL

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

$98.86
Price
$96.82
GF Value