Case study · Financial services
Trading Town
Insider and congressional trading data, ranked and delivered daily
- Client
- Toor Technologies product
- Industry
- Financial services
- Category
- Data Science
- Services
- Data Science, Website Development, Cloud Services
- Website
- tradingtown.space
The Challenge
Corporate insiders must disclose their trades on SEC Form 4 within two business days, and members of Congress file their own disclosures. The data is public, but it arrives as thousands of raw filings with no context. Knowing that an executive bought shares says little unless you also know how that insider's past purchases performed and how the trade compares to others.
We set out to make that history usable: parse the filings continuously, rank every insider buy with a consistent score, and present the results in a web app that works for an individual investor scanning a daily list as well as a trading firm pulling data into its own systems. Everything had to stay current with new filings and remain fast on large tables of historical trades.
What We Built
Trading Town is a React single-page application backed by a REST API at api.tradingtown.space. The platform sources its data directly from SEC Form 4 filings, covering officers, directors, and 10 percent owners, alongside congressional trading data with background information and a track record for each trader.
Every insider buy receives a score from 1 to 10, where a lower score indicates a better trade. The ranking weighs the size of the trade, the change in ownership it caused, the insider's previous buy transactions and their win rate, and how many insiders bought the same stock in the past 12 months. Win rates are based on one-year stock return after the purchase, and the model is based on an analysis of over 100,000 insider trades made over eight years.
Interactive dashboards built with ApexCharts show daily and weekly top insider buys, 30-day leaderboards, per-stock and per-insider profiles, and portfolio performance. A daily morning insider buy report is delivered at 8:30am Eastern, and subscribers can pull the same data through the REST API or a real-time WebSocket feed.
Key Features
Daily top insider buys
A ranked list of the day's corporate insider purchases, delivered each morning at 8:30am Eastern, with weekly and 30-day views.
Transaction scoring
Each insider buy is scored from 1 to 10 based on trade size, ownership change, the insider's track record, and clustering with other insiders.
Insider and congress profiles
Historical track records for individual corporate insiders and members of Congress, with win rates based on one-year returns.
Stock-level activity
Search any ticker to see insider and congressional activity, transaction details, and aggregate buy and sell statistics.
Strategy builder
Build a custom corporate insider strategy and copy it, with an algo trading showcase for reference.
REST API and WebSocket feed
Real-time insider and congressional trading data through REST endpoints and WebSocket streams, with example code for quick integration.
Outcomes
- Insider buys are scored consistently using a model built on an analysis of over 100,000 insider trades across eight years.
- Data is sourced directly from SEC Form 4 filings, which insiders must submit within two business days of a trade.
- A daily ranked insider buy report reaches subscribers at 8:30am Eastern.
- The same data is available to developers through a REST API and a real-time WebSocket feed.
Technologies
- React
- Material UI
- Redux
- ApexCharts
- WebSockets
