Perplexity Interactive Brokers for a small desk, priced line by line: about $100 a month, two scheduled tasks, full prompts, and why AI never trades.
Market Data
The Kronos Foundation Model Has 38,117 GitHub Stars — and Every Backtest Inside Its Training Window Is a Memory Test
Kronos foundation model review: why every pre-release backtest is a memory test, plus a walk-forward QuantConnect protocol and deflated Sharpe math.
Jiri Pik’s New Book “Hands-On Financial Trading with Python”
Announcing Hands-On Financial Trading with Python (Packt, 2021): Zipline & PyFolio backtesting, market data sources, and full code on GitHub.
Optimal DB Architecture for Fast Access to Historical FX Data in MySQL
Design a MySQL schema for ultra-fast retrieval of historical FX time series at scale (~40k pairs): RDS vs S3 tradeoffs, indexing, table-per-pair strategy.