Calculate the interest debt per share, a valuation ratio that measures the amount of interest expense incurred per outstanding share of a company’s stock.

The interest debt per share ratio provides insight into how much interest a company pays on its debt relative to its shareholder base. It can help investors assess the financial burden of interest expenses on the company’s profitability.

The formula is as follows:

\[\text{Interest Debt per Share} = (\text{Interest Expense} + \text{Total Debt}) / \text{Weighted Average} (\text{Diluted}) \text{Shares}\]

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Calculate the Interest Debt per Share in Python

The Interest Debt per Share is available in the Ratios module of the open-source Finance Toolkit. Install it with:

pip install financetoolkit -U

Then call get_interest_debt_per_share as shown below.

from financetoolkit import Toolkit

toolkit = Toolkit(["AAPL", "TSLA"], api_key="FINANCIAL_MODELING_PREP_KEY")

interest_debt_per_share = toolkit.ratios.get_interest_debt_per_share()

Which returns:

  2021 2022 2023 2024 2025
AAPL 3.26744e+08 3.61194e+08 5.01822e+08 0 0
TSLA 1.41576e+08 1.15471e+08 5.67543e+07 8.98701e+07 1.42367e+08

Parameters

get_interest_debt_per_share accepts the following parameters:

  • diluted (bool, optional): Whether to use diluted shares in the calculation. Defaults to True.
  • rounding (int, optional): The number of decimals to round the results to. Defaults to 4.
  • growth (bool, optional): Whether to calculate the growth of the ratios. Defaults to False.
  • lag (int | str, optional): The lag to use for the growth calculation. Defaults to 1.
  • standardize (bool, optional): Whether to standardize (Z-Score) the result. When combined with growth=True, standardizes the growth values instead of the raw values. Defaults to False.
  • trailing (int): Defines whether to select a trailing period. E.g. when selecting 4 with quarterly data, the TTM is calculated.
Price to Earnings Ratio (PE) Price to Earnings Growth Ratio (PEG) Forward Price to Earnings Ratio (Forward PE) Forward Price to Earnings Growth Ratio (Forward PEG) Book Value per Share Price to Book Ratio (PB) CAPEX per Share Dividend Yield Weighted Dividend Yield Price to Cash Flow Ratio (P/CF) Price to Free Cash Flow Ratio (P/FCF) Market Capitalization

The Ratios module page introduces the module, and the sidebar lists all of its functions.

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