beancount_portfolio_allocation

Reports on portfolio asset allocations in beancount. Useful for risk analysis and for rebalancing purposes.

Installation

From source

$ python3 setup.py install

PIP

$ pip install beancount_portfolio_allocation

Usage

usage: Report on portfolio asset classes allocation vs targets.
       [-h] --portfolio PORTFOLIO bean

positional arguments:
  bean                  Path to the beancount file.

optional arguments:
  -h, --help            show this help message and exit
  --portfolio PORTFOLIO
                        Name of portfolio to report on

Example

$ bean-portfolio-allocation-report ledger.beancount --portfolio pension
CASH
====
Subclass      Market Value    Percentage    Target %    Difference
----------  --------------  ------------  ----------  ------------
cash                380.00         19.00        0.00       -380.00


EQUITY
======
Subclass      Market Value    Percentage    Target %    Difference
----------  --------------  ------------  ----------  ------------
ca-stock            700.00         35.00       30.00       -100.00
us-stock            600.00         30.00       30.00          0.00


FIXED
=====
Subclass      Market Value    Percentage    Target %    Difference
----------  --------------  ------------  ----------  ------------
ca-bond             320.00         16.00       40.00        480.00

Prerequisites

Before running this tool, your beancount files will need some additional metadata to help it do its job.

Commodities

All the commodities/currency you want to track will need to have the asset-class and asset-subclass metadata strings filled in. The actual values are up to you. Here are some examples:

1867-01-01 commodity CAD
  asset-class: "cash"
  asset-subclass: "cash"

1986-03-13 commodity MSFT
  asset-class: "equity"
  asset-subclass: "us-stock"

1977-01-03 commodity AAPL
  asset-class: "equity"
  asset-subclass: "us-stock"

2007-04-04 commodity VAB
  asset-class: "fixed-income"
  asset-subclass: "ca-bond"

You will also need valid price directives for all commodities held at cost and at least one 'operating_currency' option defined. The values in the report will all be converted to the first 'operating_currency' defined. A future version will offer a way to specify the currency to use for reporting.

Accounts

Accounts need to be part of a specific portfolio to track. Only one portfolio is supported by account, but you can have multiple portfolios over multiple accounts:

2000-01-01 open Assets:CA:Employer:PensionPlan
  portfolio: "pension"

2000-01-01 open Assets:CA:Questrade:RRSP
  portfolio: "pension"

2000-01-01 open Assets:CA:Questrade:Trading
  portfolio: "day-trading"

Target allocations

You can currently define your target allocation percentages for different asset subclasses in a portfolio using custom directives. There can currently be only one directive for the same portfolio and asset subclass. Missing allocation targets will be assumed to be 0%. An example 60/40 portfolio target might look like this (NOT a financial advice):

2018-06-14 custom "allocation" "pension" "ca-stock" 30
2018-06-14 custom "allocation" "pension" "us-stock" 30
2018-06-14 custom "allocation" "pension" "ca-bond" 40