Golub Capital BDC (STU:OGL) Cyclically Adjusted PB Ratio: (As of Jul. 21, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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STU:OGL Golub Capital BDC Inc STU:OGL
46 GF Score
Price €11.32
GF Value €7.74
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Golub Capital BDC Cyclically Adjusted PB Ratio?

Note: If the price history is too short, we do not calculate current Cyclically Adjusted PB Ratio for this stock. All the historical data is shown as the company's primary share's data instead.

Shiller PE for Stocks: The True Measure of Stock Valuation


Golub Capital BDC  (STU:OGL) 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.


Golub Capital BDC Cyclically Adjusted PB Ratio Related Terms


Golub Capital BDC Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Golub Capital BDC'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.

Golub Capital BDC Cyclically Adjusted PB Ratio Chart

Golub Capital BDC Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.95 0.70 0.82 0.84 0.76

Golub Capital BDC 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 0.84 0.81 0.76 0.76 0.70

STU:OGL vs STEP, CSQ, AB: Cyclically Adjusted PB Ratio Comparison

For the Asset Management subindustry, Golub Capital BDC'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.


Golub Capital BDC Cyclically Adjusted PB Ratio vs Asset Management Industry

For the Asset Management industry and Financial Services sector, Golub Capital BDC's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:OGL
46GF Score
Golub Capital BDC Inc STU:OGL
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Golub Capital BDC 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.

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

For example, Golub Capital BDC'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)
=12.415/330.2130*330.2130
=12.415

Current CPI (Mar. 2026) = 330.2130.

Golub Capital BDC Quarterly Data

Book Value per Share CPI Adj_Book
201606 13.402 241.018 18.362
201609 13.482 241.428 18.440
201612 14.148 241.432 19.351
201703 14.077 243.801 19.066
201706 13.506 244.955 18.207
201709 12.789 246.819 17.110
201712 12.850 246.524 17.212
201803 12.385 249.554 16.388
201806 13.109 251.989 17.178
201809 13.083 252.439 17.114
201812 13.308 251.233 17.492
201903 13.380 254.202 17.381
201906 13.379 256.143 17.248
201909 14.424 256.759 18.550
201912 14.214 256.974 18.265
202003 12.542 258.115 16.045
202006 12.477 257.797 15.982
202009 12.163 260.280 15.431
202012 12.002 260.474 15.215
202103 12.478 264.877 15.556
202106 12.497 271.696 15.189
202109 12.911 274.310 15.542
202112 13.505 278.802 15.995
202203 13.939 287.504 16.010
202206 14.324 296.311 15.963
202209 15.038 296.808 16.730
202212 13.885 296.797 15.448
202303 13.757 301.836 15.050
202306 13.692 305.109 14.819
202309 14.077 307.789 15.103
202312 13.783 306.746 14.837
202403 13.912 312.332 14.708
202406 14.232 314.175 14.959
202409 13.687 315.301 14.334
202412 14.451 315.605 15.120
202503 13.913 319.799 14.366
202506 13.004 322.561 13.312
202509 12.756 324.800 12.969
202512 12.675 324.054 12.916
202603 12.415 330.213 12.415

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 Golub Capital BDC (STU:OGL) Overvalued in 2026?

Based on GuruFocus' analysis, Golub Capital BDC stock appears to be overvalued. The current stock price of €11.32 is trading 46.2% above its estimated GF Value™ of €7.74. GuruFocus considers Golub Capital BDC to be Significantly Overvalued.

Key valuation signals for STU:OGL:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €7.74 vs. price of €11.32 (46.2% above fair value)
  • GF Score™: 46/100 with 7 warning signs

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


Golub Capital BDC Business Description

Other Exchanges GBDC:USA0IZ6:UK
Address 200 Park Avenue, 25th Floor, New York, NY, USA, 10166
Golub Capital BDC Inc. is an externally managed, closed-end, non-diversified management investment company. Its investment objective is to generate current income and capital appreciation by investing in senior secured and one-stop loans in U.S. middle-market companies. It also invests in second-lien and subordinated loans, warrants, and minority equity securities in U.S. middle-market companies. The company generally invests in securities rated below investment grade by independent rating agencies, or those that would be rated below investment grade if evaluated. The company operates in the USA, Canada, and other countries, with the majority of its revenue coming from the USA.
46GF Score

Get the complete analysis for STU:OGL

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

€11.32
Price
€7.74
GF Value