Portly - data.html

General info

Exploring the Portly GUI

Miscellaneous topics

Portly was hand-written by humans (me, specifically) with minimal AI input. For the moment, at least, I believe that nothing beats good old-fashioned human craftsmanship !

How Portly stores your data

When you start Portly for the first time, it will create a data directory that contains the following files :

main.dbThe Sqlite database that will be used to store all your private transaction data. This file is managed by Portly and should not be deleted or modified directly
user.cssA CSS stylesheet that controls the visual appearance of Portly. You can edit this file in any text editor to completely change Portly's appearance

On Windows, the default location for the data folder is C:/Users/{your name}/AppData/Roaming/Portly. You can override the default by passing an alternative folder name on the command-line when you start Portly (e.g. on Windows, just create a .bat file that runs 'Portly.exe C:/store/my_alternative_data_directory' or similar)

Note that Portly never sends your private data to the cloud. All data that you enter remains on your local device, forever.

Gallery

The summary screen gives an at-a-glance overview of your portfolio's performance. To read more about it, click here

This plot shows the changing composition of a portfolio over time. It uses user-defined groups to organise the assets into different classes.

A scatter plot, showing how the daily moves of one security (QQQ) relate to the daily moves of another (SPY)

A chart showing the growth of two securities over the past year

A histogram showing the daily returns of two securities, overlaid

A bar chart showing the dividend history of two securities

Page last updated 2026-06-03 19:59:53