Question 1

What is Main Street Capital's P/B ratio?

Accepted Answer

Main Street Capital (MAIN) P/B ratio is 1.5× as of June 5, 2026. The ratio is calculated by dividing market capitalisation by book value of equity, using USD-normalised financials (IAS 21 exchange-rate translation for non-USD reporters).

Question 2

How is the P/B ratio calculated?

Accepted Answer

P/B = Market Capitalisation ÷ Book Value of Equity (most recent quarterly shareholders' equity), or equivalently Share Price ÷ Book Value Per Share. All inputs are sourced from audited GAAP/IFRS filings and translated to USD using period-end exchange rates so the multiple is comparable across companies and currencies.

Question 3

What is the P/B ratio?

Accepted Answer

The price-to-book (P/B) ratio compares a company's market capitalisation to its book value of equity (total shareholders' equity) on the most recent quarterly balance sheet. It is calculated as market cap ÷ book value of equity (equivalent to share price ÷ book value per share). A P/B below 1× implies the market values the business below its accounting net worth; values well above 1× reflect intangible assets, brand value, or a high return on equity.

Question 4

What is a good P/B ratio for Main Street Capital?

Accepted Answer

A "good" P/B depends on the business model. Banks, insurers, and other capital-heavy financials typically trade near 1×; asset-light technology and consumer-brand companies can sustainably trade at 5×+ because much of their value is intangible. P/B is most informative when paired with return on equity (ROE). For Main Street Capital specifically, the relevant sector benchmark is the current sector median of 1.7×.

Question 5

Is Main Street Capital's P/B ratio high or low?

Accepted Answer

Main Street Capital's P/B ratio of 1.5× is below its own 5-year average of 1.6× and below the sector median of 1.7×. That places the current reading at the 28th percentile of its 10-year history. A higher multiple usually reflects stronger expected growth, lower perceived risk, or higher returns on capital; a lower multiple reflects the opposite.

Question 6

What is Main Street Capital's historical P/B ratio range?

Accepted Answer

In the available daily series, Main Street Capital (MAIN) P/B ratio has ranged from a low of 0.8× in 2008 to a high of 3.1× in 2007. The 5-year average is 1.6× and the 5-year median is 1.6×.

Question 7

What was Main Street Capital's P/B ratio in 2025?

Accepted Answer

Main Street Capital (MAIN) P/B ratio at the end of 2025 was 1.8×. Annual values reflect the multiple on the last trading day of each calendar year, using the trailing twelve-month book value figure available at that date.

Question 8

Why does Main Street Capital's P/B ratio change over time?

Accepted Answer

Valuation multiples move with two inputs: the numerator (market capitalisation, which tracks the share price) and the denominator (book value). Share-price changes — driven by interest rates, earnings expectations, risk appetite, and broader market sentiment — typically dominate short-term moves, while changes in the underlying fundamental drive the longer-term trend. As a result, the ratio can rise during stock-price rallies even if the business itself has not become more valuable, and fall during sell-offs even when fundamentals are improving.


2025	$5.43B	$2.99B	1.8×	-0.0×	Dec 31, 2025
2024	$5.18B	$2.80B	1.9×	+0.4×	Dec 31, 2024
2023	$3.65B	$2.48B	1.5×	+0.1×	Dec 31, 2023
2022	$2.87B	$2.11B	1.4×	-0.4×	Dec 31, 2022
2021	$3.15B	$1.79B	1.8×	+0.3×	Dec 31, 2021
2020	$2.16B	$1.51B	1.4×	-0.4×	Dec 31, 2020
2019	$2.75B	$1.54B	1.8×	+0.4×	Dec 31, 2019
2018	$2.07B	$1.48B	1.4×	-0.3×	Dec 31, 2018
2017	$2.32B	$1.38B	1.7×	+0.0×	Dec 31, 2017
2016	$1.97B	$1.20B	1.6×	+0.3×	Dec 31, 2016
2015	$1.46B	$1.07B	1.4×	-0.0×	Dec 31, 2015
2014	$1.32B	$939.98M	1.4×	-0.2×	Dec 31, 2014
2013	$1.30B	$792.53M	1.6×	+0.1×	Dec 31, 2013
2012	$985.26M	$642.98M	1.5×	+0.2×	Dec 31, 2012
2011	$550.69M	$405.71M	1.4×	+0.2×	Dec 31, 2011
2010	$296.37M	$245.53M	1.2×	-0.0×	Dec 31, 2010
2009	$161.89M	$129.66M	1.2×	+0.5×	Dec 31, 2009
2008	$89.15M	$112.36M	0.8×	-0.3×	Dec 31, 2008
2007	$122.88M	$115.15M	1.1×	—	Dec 31, 2007


UMB Financial (UMBF)	1.1×
RenaissanceRe Holdings (RNR)	1.1×
KeyCorp (KEY)	1.1×
Southside Bancshares (SBSI)	1.1×
Prudential Financial (PRU)	1.1×
United Bankshares (UBSI)	1.1×
Alerus Financial (ALRS)	1.0×
Capital One Financial (COF)	1.0×
Franklin Resources (BEN)	1.0×
Atlantic Union Bankshares (AUB)	1.0×
American International Group (AIG)	1.0×
Eagle Financial Services (EFSI)	1.0×
Everest Re Group (RE)	1.0×
Citizens Financial Group (CFG)	1.0×
Citigroup (C)	0.9×
Ares Capital (ARCC)	0.9×
Huntington Bancshares (HBAN)	0.9×
Auburn National Bancorporation (AUBN)	0.9×
Invesco (IVZ)	0.9×
Truist Financial (TFC)	0.9×
Everest Re Group (EG)	0.9×
PSB Holdings (PSBQ)	0.8×
Ally Financial (ALLY)	0.8×
Global Payments (GPN)	0.7×
Assured Guaranty (AGO)	0.7×

P/B Ratio for Main Street Capital (MAIN)

P/B Ratio daily chart for Main Street Capital (MAIN)

Historical P/B Ratio for Main Street Capital (MAIN) from 2007 to 2025

About P/B Ratio at Main Street Capital (MAIN)

Main Street Capital P/B Ratio by Year

Main Street Capital P/B Ratio 2025: 1.8×

Main Street Capital P/B Ratio 2024: 1.9×

Main Street Capital P/B Ratio 2023: 1.5×

Main Street Capital P/B Ratio 2022: 1.4×

Main Street Capital P/B Ratio 2021: 1.8×

Sector peers by P/B Ratio — chart

Sector peers by P/B Ratio — table

Frequently asked questions

Main Street Capital (MAIN) Key Financials

P/B Ratio daily chart for Main Street Capital (MAIN)

Historical P/B Ratio for Main Street Capital (MAIN) from 2007 to 2025

About P/B Ratio at Main Street Capital (MAIN)

Main Street Capital P/B Ratio by Year

Main Street Capital P/B Ratio 2025: 1.8×

Main Street Capital P/B Ratio 2024: 1.9×

Main Street Capital P/B Ratio 2023: 1.5×

Main Street Capital P/B Ratio 2022: 1.4×

Main Street Capital P/B Ratio 2021: 1.8×

Sector peers by P/B Ratio — chart

Sector peers by P/B Ratio — table

Frequently asked questions

+What is Main Street Capital's P/B ratio?

+How is the P/B ratio calculated?

+What is the P/B ratio?

+What is a good P/B ratio for Main Street Capital?

+Is Main Street Capital's P/B ratio high or low?

+What is Main Street Capital's historical P/B ratio range?

+What was Main Street Capital's P/B ratio in 2025?

+Why does Main Street Capital's P/B ratio change over time?

Main Street Capital (MAIN) Key Financials