GammaLedger

Options traders running complex multi-leg strategies such as PMCC, Wheel, and Iron Condors need detailed performance metrics, Greeks monitoring, and risk analysis to manage their positions. Institutional portfolio managers need consolidated reporting across multiple accounts and client risk assessment, while quantitative analysts need data export and integration with their own analytical workflows. Many existing tools require storing sensitive trading data in the cloud, which conflicts with traders who demand complete privacy over their portfolio information. The text does not specify what these users do today or the specific costs of not having such a tool, only that GammaLedger is built to serve these needs.

GammaLedger is a web-based options trading analytics platform that runs directly in the browser and stores all data locally via IndexedDB, so trading data never leaves the user's device and no cloud storage is used. It supports tracking of 50+ complex options strategies with a real-time dashboard showing live P&L calculations, performance metrics, and portfolio overview. Features include multi-leg strategy tracking, Greeks monitoring, time decay alerts, win rate analysis, trade journaling, smart filtering, and strategy attribution analysis. It also offers data export and integration capabilities aimed at quantitative analysts, and multi-account consolidation and client reporting for portfolio managers. The platform is open source, released under the AGPLv3 license, with a GitHub repository and documentation available.