WABC (Westamerica Bancorp) Cyclically Adjusted PB Ratio: (As of Aug. 06, 2026)

Author: Vera Yuan 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
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.

WABC Westamerica Bancorp WABC
65 GF Score
Price $59.88
GF Value $45.81
Valuation Significantly Overvalued
! 8 Warning Signs
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What is Westamerica Bancorp Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Westamerica Bancorp  (NAS:WABC) 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.


Westamerica Bancorp Cyclically Adjusted PB Ratio Related Terms


Westamerica Bancorp Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Westamerica Bancorp'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.

Westamerica Bancorp Cyclically Adjusted PB Ratio Chart

Westamerica Bancorp 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 2.18 2.12 1.97 1.75 1.51

Westamerica Bancorp 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 1.56 1.59 1.51 1.61 0.00

WABC vs CTBI, BHRB, FMBH: Cyclically Adjusted PB Ratio Comparison

For the Banks - Regional subindustry, Westamerica Bancorp'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.


Westamerica Bancorp Cyclically Adjusted PB Ratio vs Banks Industry

For the Banks industry and Financial Services sector, Westamerica Bancorp's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


WABC
65GF Score
Westamerica Bancorp WABC
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Westamerica Bancorp 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.

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

For example, Westamerica Bancorp'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)
=37.09/333.9520*333.9520
=37.090

Current CPI (Jun. 2026) = 333.9520.

Westamerica Bancorp Quarterly Data

Book Value per Share CPI Adj_Book
201609 21.936 241.428 30.343
201612 21.669 241.432 29.973
201703 22.253 243.801 30.482
201706 22.643 244.955 30.870
201709 22.948 246.819 31.049
201712 22.336 246.524 30.257
201803 21.890 249.554 29.293
201806 21.995 251.989 29.149
201809 22.172 252.439 29.331
201812 23.030 251.233 30.613
201903 24.414 254.202 32.073
201906 25.719 256.143 33.532
201909 26.408 256.759 34.347
201912 27.027 256.974 35.123
202003 26.197 258.115 33.894
202006 30.003 257.797 38.866
202009 30.693 260.280 39.381
202012 31.514 260.474 40.404
202103 30.231 264.877 38.115
202106 31.349 271.696 38.532
202109 31.190 274.310 37.972
202112 30.786 278.802 36.876
202203 26.104 287.504 30.321
202206 22.945 296.311 25.860
202209 20.029 296.808 22.536
202212 22.372 296.797 25.173
202303 24.127 301.836 26.694
202306 24.462 305.109 26.774
202309 24.332 307.789 26.400
202312 28.979 306.746 31.549
202403 29.676 312.332 31.730
202406 30.566 314.175 32.490
202409 34.064 315.301 36.079
202412 33.322 315.605 35.259
202503 35.020 319.799 36.570
202506 36.025 322.561 37.297
202509 37.107 324.800 38.153
202512 37.912 324.054 39.070
202603 37.353 330.213 37.776
202606 37.090 333.952 37.090

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 Westamerica Bancorp (WABC) Overvalued in 2026?

Based on GuruFocus' analysis, Westamerica Bancorp stock appears to be overvalued. The current stock price of $59.88 is trading 30.7% above its estimated GF Value™ of $45.81. GuruFocus considers Westamerica Bancorp to be Significantly Overvalued.

Key valuation signals for WABC:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $45.81 vs. price of $59.88 (30.7% above fair value)
  • GF Score™: 65/100 with 8 warning signs

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


Westamerica Bancorp Business Description

Other Exchanges WB1:Germany
Address 1108 Fifth Avenue, San Rafael, CA, USA, 94901
Westamerica Bancorp provides a full range of banking services to individual and commercial customers in Northern and Central California through its subsidiary bank. The Bank is a California-chartered commercial bank whose deposits are insured by the Federal Deposit Insurance Corporation (the FDIC) up to applicable limits. The principal communities served are located in Northern and Central California, from Mendocino, Lake and Nevada Counties in the north to Kern County in the south. The Company's strategic focus is on the banking needs of small businesses.
65GF Score

Get the complete analysis for WABC

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

$59.88
Price
$45.81
GF Value