MBIA (MBI) Cyclically Adjusted PB Ratio: (As of Aug. 04, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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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.

MBI MBIA Inc MBI
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What is MBIA Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


MBIA  (NYSE:MBI) 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.


MBIA Cyclically Adjusted PB Ratio Related Terms


MBIA Cyclically Adjusted PB Ratio Historical Data

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The historical data trend for MBIA'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.

MBIA Cyclically Adjusted PB Ratio Chart

MBIA 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 0.95 0.88 0.58 1.47 0.00

MBIA 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 1.87 5.05 0.00 0.00 0.00

MBI vs OSG, JRVR, FACO: Cyclically Adjusted PB Ratio Comparison

For the Insurance - Specialty subindustry, MBIA'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.


MBIA Cyclically Adjusted PB Ratio vs Insurance Industry

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

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


MBI
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MBIA Inc MBI
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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MBIA 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.

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

For example, MBIA'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)
=-44.823/330.2130*330.2130
=-44.823

Current CPI (Mar. 2026) = 330.2130.

MBIA Quarterly Data

Book Value per Share CPI Adj_Book
201606 26.879 241.018 36.826
201609 26.952 241.428 36.864
201612 23.868 241.432 32.645
201703 24.731 243.801 33.497
201706 15.450 244.955 20.827
201709 13.874 246.819 18.562
201712 15.445 246.524 20.688
201803 13.971 249.554 18.487
201806 12.166 251.989 15.943
201809 12.217 252.439 15.981
201812 12.458 251.233 16.374
201903 13.174 254.202 17.113
201906 12.264 256.143 15.810
201909 12.862 256.759 16.542
201912 10.399 256.974 13.363
202003 6.707 258.115 8.580
202006 5.551 257.797 7.110
202009 4.265 260.280 5.411
202012 2.534 260.474 3.212
202103 -0.754 264.877 -0.940
202106 -0.662 271.696 -0.805
202109 -3.125 274.310 -3.762
202112 -5.737 278.802 -6.795
202203 -10.300 287.504 -11.830
202206 -13.625 296.311 -15.184
202209 -15.719 296.808 -17.488
202212 -16.079 296.797 -17.889
202303 -16.593 301.836 -18.153
202306 -19.215 305.109 -20.796
202309 -24.228 307.789 -25.993
202312 -32.578 306.746 -35.070
202403 -33.797 312.332 -35.732
202406 -39.077 314.175 -41.072
202409 -39.213 315.301 -41.068
202412 -40.985 315.605 -42.882
202503 -42.207 319.799 -43.581
202506 -43.139 322.561 -44.162
202509 -43.177 324.800 -43.897
202512 -44.288 324.054 -45.130
202603 -44.823 330.213 -44.823

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.


MBIA Business Description

Address 1 Manhattanville Road, Suite 202, Purchase, NY, USA, 10577
MBIA Inc provides financial guaranty insurance for municipal bonds and asset-backed securities in the United States and internationally. It offers an unconditional guarantee to repay the principal and interest on these securities if the issuer defaults. MBIA insures bonds sold in the primary and secondary markets, as well as those held in unit investment trusts and mutual funds. It operates in three segments: the United States Public Finance Insurance, which derives maximum revenue, Corporate, and International & Structured Finance Insurance. The U.S. public finance insurance portfolio is managed through the National Public Finance Guarantee Corporation. International & structured finance insurance business is managed through MBIA Insurance Corporation and its subsidiaries.
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Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

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