TRST (Trustco Bank N Y) Cyclically Adjusted Book per Share: $35.57 (As of Jun. 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

TRST Trustco Bank Corp N Y TRST
58 GF Score
Price $57.28
GF Value $39.21
Valuation Significantly Overvalued
! 8 Warning Signs
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What is Trustco Bank N Y Cyclically Adjusted Book per Share?

Trustco Bank N Y TRST +1.24% 58 Cyclically Adjusted Book per Share is $35.57 as of Jun. 2026. GuruFocus rates TRST with a GF Score™ of 58/100 and a GF Value™ of $39.21 (Significantly Overvalued). The stock has 8 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.

Trustco Bank N Y's adjusted book value per share for the three months ended in Jun. 2026 was $38.525. 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 $35.57 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Trustco Bank N Y's average Cyclically Adjusted Book Growth Rate was 5.90% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 5.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 7.20% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 6.60% 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 Trustco Bank N Y was 8.70% per year. The lowest was 1.20% per year. And the median was 4.90% per year.

As of today (2026-08-21), Trustco Bank N Y's current stock price is $57.28. Trustco Bank N Y's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $35.57. Trustco Bank N Y's Cyclically Adjusted PB Ratio of today is 1.61.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Trustco Bank N Y was 2.29. The lowest was 0.82. And the median was 1.31.


Trustco Bank N Y  (NAS:TRST) 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.

Trustco Bank N Y's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=57.28/35.57
=1.61

* 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 Trustco Bank N Y was 2.29. The lowest was 0.82. And the median was 1.31.


Be Aware

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


Trustco Bank N Y Cyclically Adjusted Book per Share Related Terms


Trustco Bank N Y Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Trustco Bank N Y'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.

Trustco Bank N Y Cyclically Adjusted Book per Share Chart

Trustco Bank N Y 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 26.59 29.01 30.81 32.49 34.15

Trustco Bank N Y 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 33.60 34.02 34.15 34.99 35.57

TRST vs NBBK, CPF, FMCB: Cyclically Adjusted Book per Share Comparison

For the Banks - Regional subindustry, Trustco Bank N Y'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.


Trustco Bank N Y Cyclically Adjusted PB Ratio vs Banks Industry

For the Banks industry and Financial Services sector, Trustco Bank N Y's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Trustco Bank N Y's Cyclically Adjusted PB Ratio falls into.


TRST
58GF Score
Trustco Bank Corp N Y TRST
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Trustco Bank N Y 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, Trustco Bank N Y'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)
=38.525/333.9520*333.9520
=38.525

Current CPI (Jun. 2026) = 333.9520.

Trustco Bank N Y Quarterly Data

Book Value per Share CPI Adj_Book
201609 22.779 241.428 31.509
201612 22.587 241.432 31.243
201703 22.869 243.801 31.325
201706 23.297 244.955 31.761
201709 23.667 246.819 32.022
201712 23.798 246.524 32.238
201803 23.978 249.554 32.087
201806 24.401 251.989 32.338
201809 24.699 252.439 32.674
201812 25.340 251.233 33.683
201903 25.930 254.202 34.065
201906 26.628 256.143 34.717
201909 27.146 256.759 35.307
201912 27.768 256.974 36.086
202003 28.423 258.115 36.774
202006 28.694 257.797 37.170
202009 29.062 260.280 37.288
202012 29.458 260.474 37.768
202103 29.606 264.877 37.327
202106 30.033 271.696 36.915
202109 30.531 274.310 37.169
202112 31.276 278.802 37.463
202203 30.877 287.504 35.865
202206 31.089 296.311 35.038
202209 30.916 296.808 34.785
202212 31.538 296.797 35.486
202303 32.312 301.836 35.750
202306 32.663 305.109 35.751
202309 32.797 307.789 35.585
202312 33.920 306.746 36.928
202403 34.125 312.332 36.487
202406 34.464 314.175 36.633
202409 35.193 315.301 37.275
202412 35.560 315.605 37.627
202503 36.162 319.799 37.762
202506 36.752 322.561 38.050
202509 37.297 324.800 38.348
202512 38.082 324.054 39.245
202603 38.323 330.213 38.757
202606 38.525 333.952 38.525

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 $35.57 mean?
Trustco Bank N Y (TRST) has a Cyclically Adjusted Book per Share of $35.57 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 Trustco Bank N Y and its competitors.
Is Trustco Bank N Y's Cyclically Adjusted Book per Share too high?
Trustco Bank N Y's current Cyclically Adjusted Book per Share is $35.57. Overall, Trustco Bank N Y has a GF Score™ of 58/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Trustco Bank N Y's Cyclically Adjusted Book per Share compare to NBBK and CPF?
Trustco Bank N Y's Cyclically Adjusted Book per Share of $35.57 can be compared against companies in the Banks 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 Banks company?
A good Cyclically Adjusted Book per Share depends on the Banks 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 Trustco Bank N Y and its competitors. Trustco Bank N Y's current Cyclically Adjusted Book per Share is $35.57. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Trustco Bank N Y stock overvalued right now?
Based on GuruFocus' analysis, Trustco Bank N Y (TRST) is currently considered Significantly Overvalued. The stock's GF Value™ is $39.21, compared to a current price of $57.28 — trading 46.1% above its estimated fair value. The current Cyclically Adjusted Book per Share is $35.57. Trustco Bank N Y's overall GF Score™ is 58/100 with 8 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 Trustco Bank N Y (TRST), the current Cyclically Adjusted Book per Share is $35.57 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 Trustco Bank N Y (TRST) Overvalued in 2026?

Based on GuruFocus' analysis, Trustco Bank N Y stock appears to be overvalued. The current stock price of $57.28 is trading 46.1% above its estimated GF Value™ of $39.21. GuruFocus considers Trustco Bank N Y to be Significantly Overvalued.

Key valuation signals for TRST:

  • Cyclically Adjusted Book per Share: $35.57
  • GF Value™: $39.21 vs. price of $57.28 (46.1% above fair value)
  • GF Score™: 58/100 with 8 warning signs

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


Trustco Bank N Y Business Description

Other Exchanges TC50:Germany
Address 5 Sarnowski Drive, Glenville, NY, USA, 12302
Trustco Bank Corp N Y is a savings and loan holding company. The core part of a business consists of accepting deposits and making loans and investments. It offers a range of both personal and business banking services. The company's product includes savings accounts; retirement accounts; money market account; mortgages; building loans; auto loans and others. The company derives revenue from the business of Banking. TrustCo lends in the geographic territory of its branch locations in New York, Florida, Massachusetts, New Jersey, and Vermont.
58GF Score

Get the complete analysis for TRST

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

$57.28
Price
$39.21
GF Value