AlphaSign

https://alphasign.trade/ AlphaSign is a multi-agent financial intelligence system built for the Band of Agents Hackathon, using Band as the live coordination layer between four specialized agents rather than as a notification channel bolted on afterward. A user submits a single ticker, and Band routes that ticker into a structured, sequential handoff: the Narrative Analyst researches news, source reliability, and catalysts, then hands a quantified research lens to Signal Processing, which computes returns, volatility, beta, and idiosyncratic volatility before passing state to Latent State, which applies Kalman-filter regime detection to flag trend shifts. Each agent shares structured context and task state through Band messages and mentions rather than a shared database, making the agent-to-agent handoffs themselves the core workflow, not a side effect of it. Once the loop completes, an Executive agent synthesizes the full multi-agent transcript into a structured PDF report with a direct hypothesis verdict. A Next.js dashboard streams the live transcript, per-agent lanes, and the rendered report in real time over Server-Sent Events, so the collaboration between specialized agents is visible and auditable rather than hidden behind a single chat response, turning unstructured market narrative into a coordinated, evidence-backed investment thesis.