Helious: live US market news, economic calendar & squawk

Helious is a live US market news service. Every economic release is scored against forecast the second it prints, every Treasury auction is read within seconds, and a free live squawk calls the tape in real time. Operated by TradeIQ Ltd.

Helious puts five things on one screen: a scored news feed, the economic calendar with consensus and actual for every US release, Treasury auction results with the tail against the when-issued yield and a strong, in line or weak call on each CUSIP, the Treasury curve with its live regime, and coverage of every Fed speaker. Each number carries something to judge it against: a percentile in its own history, the average of the last twelve auctions, or a dated note such as the highest close since 2007.

Helious is free to read. Paid plans take the prices live and open the history. The same data reaches software through the Helious API and an MCP server for AI agents, with no key needed at the sample tier. Helious is a product of TradeIQ Ltd, registered in Glasgow, Scotland, and lives at helious.io with its companion site helious.news. It is not related to Helios or Helius.