Faction: Stock Analysis App

Overview

What is it?

Most stock analysis tools are either cloud-dependent, subscription-gated, or black boxes. Faction is a fully local alternative: a Tauri desktop app that scores stocks on both technical (price action, candlestick patterns, momentum) and fundamental (ROE, FCF, debt/equity) dimensions using ONNX models run directly via a pure-Rust inference stack.

The AI chat feature runs Qwen2.5-0.5B locally via Hugging Face’s candle inference library, Metal-accelerated on Apple Silicon, CPU elsewhere. Market data comes from Yahoo Finance with Tiingo as a fallback. Everything stays on your machine.

Features

What it does

• Technical Analysis — Scores stocks based on price action (candlestick patterns, momentum indicators) using a trained ONNX model running entirely on-device.
• Fundamental Analysis — Evaluates financial health through key ratios (ROE, free cash flow, debt/equity) scored by a second on-device ONNX model.
• Local AI Chat — Ask questions about any stock using Qwen2.5-0.5B running locally via candle: Metal-accelerated on Apple Silicon, CPU on everything else.
• Dashboard — Combined view of technical and fundamental scores with an optional AI insight strip for a quick read on any ticker.
• Fully Offline — All inference runs on your machine. No cloud API keys needed. Market data via Yahoo Finance (Tiingo as fallback), model runs locally.
• Pure-Rust ML Backend — ONNX models run directly via tract-onnx and ndarray: no Python runtime, no PyTorch, just native Rust inference.