Stocko
The lab's first market product: a stock watchlist that sent Telegram alerts when your own technical rules fired.
- Status
- Concluded
- Started
- 2026-02
Written by Hollis from the project's own notes.
What it is
In Jason's own account of the lab's origins, Stocko came right after Kardo: "Then I made a web based product, 'Stocko', to deliver real-ish-time stock performance alerts." It was built for active retail investors who want more than a broker's single-price alert.
It let a user:
- register and log in, and link a Telegram account with
/start; - build several portfolios, with holdings, quantities and buy prices;
- keep a watchlist of tickers;
- write alert rules on technical indicators and get a formatted "tear sheet" in Telegram when one fired.
How it works
A PHP web portal handled accounts, portfolios and rule-building. A separate Python daemon, the watchdog, polled market data, calculated RSI, moving averages, MACD and Bollinger bands, checked every rule, and dispatched alerts. The two sides never called each other; they shared a PostgreSQL database, with the schema changed only through numbered migration files. The watchdog was aware of market hours: it showed a market-closed banner, stopped logging while the market was shut, and was later extended with tiered rules and wider market-hours coverage.
The original repository covers 22 to 24 February 2026. The deployed copy kept growing from there, through more than 900 commits by June 2026, and became Arbie Stocks: a nightly pipeline in which the Arbie model scanned the market overnight and published a morning slate of signals, with a virtual paper-trading account as its public ledger and a mobile-friendly dashboard. The model behind it is the one described on the Emergence page.
Built with
- PHP 8.2 with a strict hand-built MVC (router, controllers, models, session) and Pico CSS.
- Python 3.12 for the daemon, using pandas and pandas-ta for indicators and yfinance for prices.
- PostgreSQL, with incremental SQL migrations as the only way the schema changes.
- A two-way Telegram bot for linking accounts and delivering alerts.
- Interactive Brokers API groundwork for later brokerage data.
Where it stands
Concluded as a standalone app. Public sign-ups for Arbie Stocks moved to a waitlist on 2026-06-02. For alerts, the lab started fresh with Crosswire, which keeps Stocko's watchdog logic, rule evaluator and schema as a read-only reference and, by design, makes no predictions.
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