Karsa
A systematic research workspace for Indonesian stocks, from screening and model signals to paper portfolios.
Open Karsa- Focus
- Full-stack product
- Role / project
- Independent project · Product design & development
- Tools / approach
- React, TypeScript, Vinext, PostgreSQL, Cloudflare Workers
Context
Finding a stock is only one part of a research process. Karsa brings screening, market context, model signals, and paper portfolio review into one workspace for Indonesian equities.
The work
I designed and built the product around a repeatable workflow: inspect a dated snapshot, understand the model’s exposure rules, research candidates, and review a paper portfolio. The interface keeps tactical momentum and defensive core decisions separate, and makes missing data and research limitations visible.
Inside Karsa
Research in context
Screen stocks and inspect dated price charts, company data, and saved watchlists within one workspace.
Explainable model decisions
Separate exposure gates show how tactical and defensive rules can reach different decisions on the same market.
Paper portfolio review
Review model exposure and proposed portfolio changes without placing trades with a broker.
Outcome
A deployed application with stock screening, interactive charts, watchlists, and paper portfolio tools. A public, interactive walkthrough explains the strategy logic before sign-in. The product supports research and paper simulation, with no broker execution.