StockSidekick
A plain-English daily briefing app for self-directed retail investors that combines price moves, news, and fundamentals on the stocks you actually own or watch, delivered in a chat-style summary at 7am each morning.
self-directed retail investors who hold a watchlist of 5-30 stocks and want a single morning read instead of checking six sites
- Morning brief in conversational English: 'NVDA is up 3% on data-center guidance; here's the one piece of news you missed; your cost basis is now X% in the green'
- Watchlist news radar that flags only earnings, guidance changes, and major contract news — not generic market noise
- Plain-English fundamentals explainer that turns PE ratios, free cash flow, and debt-to-equity into a one-sentence 'what this means for a retail holder' view
- Earnings countdown calendar with a pre-earnings 'what to watch' note one day before each report on your list
The Tiingo MCP server's 91 stars show strong demand for unified stock-data plumbing; the next layer up — a consumer product that uses that data to actually talk to investors like a human — is still wide open, while existing apps either drown users in charts or oversimplify into gamified trading.
Multiple AI daily-briefing products already launched (Briefr, QuantHub Morning Briefing, Meridian), and 2026 roundups of AI investment tools show a crowded but active category, indicating real pain point around morning prep.Your Daily Audio Market Briefing, Powered by AI ↗Best AI Tools for Investment Research: 25+ Platforms for 2026 ↗
Direct competitors already exist — QuantHub (personalized portfolio briefing, free), Briefr (AI audio briefings), and Meridian (free AI daily briefings + watchlist) all target the same 'single morning read' use case; Yahoo Finance also has a flagship Morning Brief.QuantHub Morning Briefing — Daily Portfolio Intelligence ↗Meridian — AI Stock Analysis & Market Intelligence ↗Morning Brief - Yahoo Finance's Flagship Morning Show ↗
QuantHub and Meridian are explicitly free, Briefr offers a free tier, and Yahoo Finance Morning Brief is free; willingness to pay exists (Seeking Alpha Premium ~$240/yr proves the market) but consumer-grade daily-briefing apps mostly monetize via freemium, not subscription.QuantHub Morning Briefing — Daily Portfolio Intelligence ↗Your Daily Audio Market Briefing, Powered by AI ↗
Self-directed investing is a multi-decade trend and only grows as zero-commission brokerages expand
Tech stack is straightforward: Tiingo (or similar) for prices/news/fundamentals, plus an LLM for plain-English summarization, delivered via push notification or email — multiple Tiingo MCP repos on GitHub confirm the data plumbing is ready-made.GitHub - matteoantoci/mcp-tiingo ↗GitHub - major7apps/tiingo-mcp ↗