Real-Time Institutional Stock Flow Screener

Description: Built a full-stack, cloud-hosted screener that replicates Unusual Whales–style "whale alerts" for SPXW and other underlyings. Leveraged Theta Terminal for institutional-grade options trade data and orchestrated real-time workflows using n8n.

Pulls and parses real-time trade data using /bulk_at_time/option/trade

Dynamically computes time windows and expiration chains

Filters trades by execution timestamp (ms_of_day) to avoid duplicates

Applies scoring logic based on size, price, and OTM distance

Throttles Telegram alerts to avoid noise (deduped, capped, and spaced)

Self-hosted Express API for storing sequence and alerts

Cloud: Ubuntu VPS (DigitalOcean), Node.js API, Express

Data: Theta Terminal (real-time institutional options feed)

Automation: n8n workflows (webhook, scheduling, logic, alerts)

Messaging: Telegram Bot API