Qwen 3.5 One-Shots a Python Stock Analyzer App with yfinance

Melvin Vivas · X post · 2026-03-01 · Open on X

Topics: LLM Fundamentals, AI Dev Tools & Productivity, Portfolio Projects · Level: beginner

Summary

The creator reports that Qwen 3.5 built a working Python stock analyzer app with the yfinance library from a single prompt. It shows how capable open-weight models are at generating whole apps in one shot.

Key points

• Qwen 3.5 produced a working stock analyzer app from one prompt.
• Prompt: build a Python stock analyzer app using the yfinance library.
• Open-weight models can now handle small end-to-end app generation.

Resources mentioned

• Qwen 3.5 · tool · qwen.ai · free
  Alibaba Qwen open model family with small on-device variants and toggleable reasoning.
  Also in: Workshop AI: Building Apps with Cloud and Local Agents (GLM 5, Qwen 3.5) (Melvin Vivas on X · notes), Qwen3.5 0.8B Does Real-Time Local Video Captioning (Melvin Vivas on X · notes), Qwen3.5 0.8B Real-Time Video Captioning on Mac Studio (Melvin Vivas on X · notes), Qwen 3.5 Is the Local Model That Holds Up in Claude Code (Melvin Vivas on X · notes) and 7 more
• yfinance · repo · github.com · free
  Open-source Python library for downloading Yahoo Finance market data.
  Also in: Prompting Qwen 3.5 to Build a yfinance Stock Analyzer (Melvin Vivas on X · notes)

Try this

• Try one-shot prompting an LLM to build a small Python app.
• Python stock analyzer app using the yfinance library, generated by an LLM