02 — TRADING ANALYSIS TOOL
INTERACTIVE P&L CALENDAR
Brokerage tools tell you what your account did. They do not tell you what you did. This application pulls trading history through the Webull API and lays it out as an interactive calendar, so results, streaks and decisions can be read against the days they happened on — and the patterns behind a good or bad month become visible instead of anecdotal.
- CATEGORY
- TRADING ANALYSIS TOOL
- STACK
- Python
- JavaScript
- HTML/CSS
- Webull API
(01) THE PROBLEM
The problem
Traditional brokerage tools showed performance as a running total and nothing else. There was no way to see decision-making patterns — which days went wrong, whether the bad ones clustered, or what I had actually been doing differently when things worked.
(02) THE SOLUTION
Import the full trading history and render it as a calendar where every day is interrogable. Seeing results laid out against time turns a column of numbers into something with shape: streaks, recoveries and habits all become visible at a glance.
(03) MY ROLE
Sole developer — API integration, the analysis layer, and the interactive front end.
(04) ARCHITECTURE
SYSTEM ARCHITECTURE
NEXT PROJECT — BACKTESTING SYSTEM