Alpha Microelectronics (ROCO:8024) Cyclically Adjusted PB Ratio: (As of Aug. 04, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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
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.

ROCO:8024 Alpha Microelectronics Corp ROCO:8024
55 GF Score
Price NT$14.40
GF Value NT$10.21
Valuation Significantly Overvalued
! 2 Warning Signs
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What is Alpha Microelectronics Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Alpha Microelectronics  (ROCO:8024) 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.


Alpha Microelectronics Cyclically Adjusted PB Ratio Related Terms


Alpha Microelectronics Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Alpha Microelectronics'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.

Alpha Microelectronics Cyclically Adjusted PB Ratio Chart

Alpha Microelectronics 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 1.66 1.22 1.26 1.02 0.73

Alpha Microelectronics Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 0.91 0.79 0.80 0.73 0.00

ROCO:8024 vs NVDA, AVGO, MU: Cyclically Adjusted PB Ratio Comparison

For the Semiconductors subindustry, Alpha Microelectronics'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.


Alpha Microelectronics Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


ROCO:8024
55GF Score
Alpha Microelectronics Corp ROCO:8024
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Alpha Microelectronics 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.

Alpha Microelectronics's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, Alpha Microelectronics'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)
=8.899/330.2130*330.2130
=8.899

Current CPI (Mar. 2026) = 330.2130.

Alpha Microelectronics Quarterly Data

Book Value per Share CPI Adj_Book
201606 15.239 241.018 20.879
201609 15.186 241.428 20.771
201612 15.240 241.432 20.844
201703 14.890 243.801 20.168
201706 14.989 244.955 20.206
201709 14.962 246.819 20.017
201712 14.972 246.524 20.055
201803 14.521 249.554 19.214
201806 14.708 251.989 19.274
201809 14.708 252.439 19.239
201812 14.774 251.233 19.418
201903 14.564 254.202 18.919
201906 14.546 256.143 18.752
201909 14.466 256.759 18.604
201912 14.011 256.974 18.004
202003 13.685 258.115 17.508
202006 13.265 257.797 16.991
202009 13.224 260.280 16.777
202012 13.357 260.474 16.933
202103 13.404 264.877 16.710
202106 13.918 271.696 16.916
202109 14.410 274.310 17.347
202112 14.930 278.802 17.683
202203 15.629 287.504 17.951
202206 14.855 296.311 16.555
202209 15.850 296.808 17.634
202212 15.857 296.797 17.642
202303 15.578 301.836 17.043
202306 13.530 305.109 14.643
202309 13.522 307.789 14.507
202312 12.974 306.746 13.967
202403 12.696 312.332 13.423
202406 12.545 314.175 13.185
202409 12.069 315.301 12.640
202412 11.975 315.605 12.529
202503 11.447 319.799 11.820
202506 10.414 322.561 10.661
202509 9.908 324.800 10.073
202512 9.393 324.054 9.572
202603 8.899 330.213 8.899

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 Alpha Microelectronics (ROCO:8024) Overvalued in 2026?

Based on GuruFocus' analysis, Alpha Microelectronics stock appears to be overvalued. The current stock price of NT$14.40 is trading 41% above its estimated GF Value™ of NT$10.21. GuruFocus considers Alpha Microelectronics to be Significantly Overvalued.

Key valuation signals for ROCO:8024:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: NT$10.21 vs. price of NT$14.40 (41% above fair value)
  • GF Score™: 55/100 with 2 warning signs

No single metric tells the full story. See the ROCO:8024 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Alpha Microelectronics Business Description

Address No. 295, Section 2, Guangfu Road, 9th Floor, Hsinchu, TWN
Alpha Microelectronics Corp is a Taiwan based company engages in the design, research, development, application, and marketing of integrated circuits. Its product range covers voice ICs, voice integrated MCUs and IC recording products.
55GF Score

Get the complete analysis for ROCO:8024

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

NT$14.40
Price
NT$10.21
GF Value