US Stock Screener Access address https://usstockscreener-production-6b89.up.railway.app/ A daily US stock screener built with FastAPI + React. Fetches a curated tech/value stock pool via yfinance, computes daily technical patterns and rolling indicators into a single data.parquet snapshot, and serves a full-featured filter/sort/research UI with real-time data support . Features Main Screener Pattern filters — single/double/triple candlestick patterns, MA trend patterns, volume/volatility signals, momentum signals Numeric filters — range conditions on any continuous metric (PE, ROE, market cap, etc.) Preset strategies — one-click strategy presets combining multiple filters Sortable table — sort by any column; paginated results Signal score — composite ranking score shown per stock Watchlist Star any stock to add it to your watchlist (persisted via localStorage ) Watchlist-only mode — filter the table to show only starred stocks Watchlist bar shows count and quick actions Stock Research Page ( /stock/:symbol )…