Calculate the book value per share, a valuation ratio that measures the amount of common equity value per share outstanding.

The book value per share is a fundamental valuation metric that reflects the net worth of a company attributed to each outstanding share of common stock.

The formula is as follows:

\[\text{Book Value per Share} = (\text{Total Shareholder Equity} - \text{Preferred Stock}) / \text{Weighted Average} (\text{Diluted}) \text{Shares}\]

Also known as: BVPS, net asset value per share.

Book Value per Share in Python or via the MCP

Install the Finance Toolkit with:

pip install financetoolkit -U

Then call get_book_value_per_share as shown below.

from financetoolkit import Toolkit

toolkit = Toolkit(
    ["CB", "TRV", "ALL"],
    api_key="FINANCIAL_MODELING_PREP_KEY",
    start_date="2021-01-01",
    end_date="2025-12-31",
)

toolkit.ratios.get_book_value_per_share()

Or, after setting up the Finance Toolkit MCP, ask:

How did the book value per share of Chubb, Travelers and Allstate develop from 2021 to 2025?

Which returns:

  2021 2022 2023 2024 2025
ALL 77.5961 57.2198 60.0724 72.5952 108.081
CB 134.734 119.282 143.666 155.426 186.02
TRV 115.179 89.9458 107.326 120.571 144.525

Parameters

get_book_value_per_share accepts the following parameters.

ParameterTypeDescriptionExample
dilutedboolWhether to use diluted shares in the calculation. Defaults to True.False
roundingint | NoneThe number of decimals to round the results to. Defaults to None, which uses the rounding of the Toolkit (4 unless set otherwise).2
growthboolWhether to calculate the growth of the ratios. Defaults to False.True
lagint | list[int]The lag to use for the growth calculation. Defaults to 1.4
compoundboolWhether the growth is the compound annual growth rate over the lag (e.g. lag=5 for the five-year CAGR) instead of the total change. Defaults to False.False
standardizeboolWhether to standardize (Z-Score) the result. When combined with growth=True, standardizes the growth values instead of the raw values. Defaults to False.True
trailingintThe number of periods to sum flows (income and cash flow statement items) over, with balance sheet items averaged over the same number of period ends. E.g. 4 with quarterly data gives the trailing twelve months (TTM) and 3 with annual data a three-year cumulative figure. Defaults to None, which uses single-period flows (per quarter and not annualized with quarterly data).4
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