American International Group (BSP:AIGB34) Cyclically Adjusted Book per Share: R$443.43 (As of Mar. 2026)

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BSP:AIGB34 American International Group Inc BSP:AIGB34
66 GF Score
Price R$391.20
GF Value R$473.02
Valuation Modestly Undervalued
! 2 Warning Signs
View Full Analysis

What is American International Group Cyclically Adjusted Book per Share?

American International Group BSP:AIGB34 66 Cyclically Adjusted Book per Share is R$443.43 as of Mar. 2026. GuruFocus rates BSP:AIGB34 with a GF Score™ of 66/100 and a GF Value™ of R$473.02 (Modestly Undervalued). The stock has 2 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.

American International Group's adjusted book value per share for the three months ended in Mar. 2026 was R$396.510. 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 R$443.43 for the trailing ten years ended in Mar. 2026.

During the past 12 months, American International Group's average Cyclically Adjusted Book Growth Rate was -0.50% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -0.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 1.80% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -9.50% 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 American International Group was 14.70% per year. The lowest was -32.40% per year. And the median was 1.00% per year.

As of today (2026-07-17), American International Group's current stock price is R$391.20. American International Group's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was R$443.43. American International Group's Cyclically Adjusted PB Ratio of today is 0.88.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of American International Group was 1.02. The lowest was 0.21. And the median was 0.66.


American International Group  (BSP:AIGB34) 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.

American International Group's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=391.20/443.43
=0.88

* 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 American International Group was 1.02. The lowest was 0.21. And the median was 0.66.


Be Aware

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


American International Group Cyclically Adjusted Book per Share Related Terms


American International Group Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for American International Group'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.

American International Group Cyclically Adjusted Book per Share Chart

American International Group 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 446.55 457.11 412.06 533.76 472.29

American International Group 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 494.96 467.57 454.11 472.29 443.43

BSP:AIGB34 vs HIG, ACGL, PLGO: Cyclically Adjusted Book per Share Comparison

For the Insurance - Diversified subindustry, American International Group'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.


American International Group Cyclically Adjusted PB Ratio vs Insurance Industry

For the Insurance industry and Financial Services sector, American International Group's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


BSP:AIGB34
66GF Score
American International Group Inc BSP:AIGB34
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

American International Group 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, American International Group'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)
=396.51/330.2130*330.2130
=396.510

Current CPI (Mar. 2026) = 330.2130.

American International Group Quarterly Data

Book Value per Share CPI Adj_Book
201606 284.404 241.018 389.655
201609 276.576 241.428 378.287
201612 257.109 241.432 351.655
201703 245.789 243.801 332.906
201706 268.960 244.955 362.573
201709 252.543 246.819 337.871
201712 238.852 246.524 319.937
201803 229.363 249.554 303.496
201806 258.897 251.989 339.265
201809 272.100 252.439 355.931
201812 252.562 251.233 331.960
201903 266.290 254.202 345.916
201906 283.909 256.143 366.008
201909 308.356 256.759 396.571
201912 307.555 256.974 395.210
202003 338.617 258.115 433.201
202006 371.913 257.797 476.385
202009 398.821 260.280 505.978
202012 393.377 260.474 498.699
202103 407.815 264.877 508.409
202106 385.833 271.696 468.932
202109 406.620 274.310 489.487
202112 452.227 278.802 535.618
202203 347.902 287.504 399.583
202206 296.760 296.311 330.713
202209 273.845 296.808 304.666
202212 289.268 296.797 321.836
202303 306.626 301.836 335.453
202306 283.900 305.109 307.259
202309 276.867 307.789 297.038
202312 319.137 306.746 343.552
202403 321.971 312.332 340.404
202406 368.363 314.175 387.167
202409 395.718 315.301 414.433
202412 427.975 315.605 447.784
202503 411.048 319.799 424.433
202506 411.168 322.561 420.922
202509 404.669 324.800 411.413
202512 417.037 324.054 424.963
202603 396.510 330.213 396.510

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 R$443.43 mean?
American International Group (BSP:AIGB34) has a Cyclically Adjusted Book per Share of R$443.43 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 American International Group and its competitors.
Is American International Group's Cyclically Adjusted Book per Share too high?
American International Group's current Cyclically Adjusted Book per Share is R$443.43. Overall, American International Group has a GF Score™ of 66/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does American International Group's Cyclically Adjusted Book per Share compare to HIG and ACGL?
American International Group's Cyclically Adjusted Book per Share of R$443.43 can be compared against companies in the Insurance 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 an Insurance company?
A good Cyclically Adjusted Book per Share depends on the Insurance 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 American International Group and its competitors. American International Group's current Cyclically Adjusted Book per Share is R$443.43. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is American International Group stock overvalued right now?
Based on GuruFocus' analysis, American International Group (BSP:AIGB34) is currently considered Modestly Undervalued. The stock's GF Value™ is R$473.02, compared to a current price of R$391.20 — trading 17.3% below its estimated fair value. The current Cyclically Adjusted Book per Share is R$443.43. American International Group's overall GF Score™ is 66/100 with 2 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 American International Group (BSP:AIGB34), the current Cyclically Adjusted Book per Share is R$443.43 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 American International Group (BSP:AIGB34) Overvalued in 2026?

Based on GuruFocus' analysis, American International Group stock appears to be undervalued. The current stock price of R$391.20 is trading 17.3% below its estimated GF Value™ of R$473.02. GuruFocus considers American International Group to be Modestly Undervalued.

Key valuation signals for BSP:AIGB34:

  • Cyclically Adjusted Book per Share: R$443.43
  • GF Value™: R$473.02 vs. price of R$391.20 (17.3% below fair value)
  • GF Score™: 66/100 with 2 warning signs

No single metric tells the full story. See the BSP:AIGB34 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


American International Group Business Description

Address 1271 Avenue of the Americas, New York, NY, USA, 10020
American International Group is one of the largest insurance and financial services firms in the world and has a global footprint. It operates through a wide range of subsidiaries that provide property, casualty, and life insurance. The company recently spun off its life insurance operations (Corebridge), but still retains a minority stake.
66GF Score

Get the complete analysis for BSP:AIGB34

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

R$391.20
Price
R$473.02
GF Value