Stock Analysis Portal
Professional-grade equity analysis for retail investors
A full-stack platform for US equities (NYSE/NASDAQ) that combines real-time quotes, technical indicators, fundamentals, and a stock screener — pulling from Polygon.io with Redis caching to keep responses fast.
Open the live appproblem
Retail investors who want serious analysis hit a wall: Bloomberg costs thousands a month, free tools give you a single chart, and combining technicals with fundamentals means stitching together six tabs.
solution
FastAPI service ingests Polygon.io and Yahoo Finance, computes the standard technical suite, and surfaces it in a Next.js + Tailwind UI. Caching layer handles the bursty traffic patterns that come from screener queries.
architecture
external → compute → store → ui
outcome
Search, screen, deep-dive, and watchlist a US stock in under three clicks. Public read, authenticated portfolio + alerts.
stack
capabilities
- →Real-time quotes and historical price charts
- →Full technical indicator suite
- →Fundamental metrics and screener
- →Watchlists and price alerts
- →Portfolio tracking with realized P&L
lessons learned
- 01Polygon.io rate limits force a tiered cache: hot symbols stay in Redis, cold ones lazily refresh.
- 02Buy/sell heuristics are easy to write, easy to over-trust. Every signal links back to the indicator math so users can audit it.
- 03A screener query is a database read, not an API call — moving filters server-side cut perceived latency by ~70%.
disclaimer
Educational and informational use only. Not financial advice or a recommendation to buy or sell securities. Past performance does not guarantee future results.