All features
Real-Time Streaming

Live Market Data

Real-time quotes streamed for every symbol you track — the live data spine of the whole terminal.

Helius Terminal streams real-time bid, ask, last price, size, and volume for all your positions and watchlist symbols at once. This live feed powers every other feature in the terminal — the prediction model, alerting, P&L tracking, and AI analysis all run off the same real-time stream.

Key Capabilities

What this feature does for you

Real-Time Quotes

Bid, ask, last price, bid size, ask size, and volume streamed live for every symbol in your watchlist and positions — updated on every market tick.

Microprice Computation

The terminal computes microprice (size-weighted fair value) from live bid/ask/size data — a more accurate estimate of true market value than raw last price.

Multi-Symbol Simultaneous Streaming

All positions and watchlist symbols are streamed over a single live connection. Adding or removing symbols updates the stream instantly without reconnecting.

Powers All Downstream Features

The live stream is the data spine of the terminal. The prediction model, alerting service, portfolio P&L, and trade execution all consume this same real-time feed.

Automatic Reconnection

If the live connection drops, the terminal automatically reconnects and resubscribes to all active symbols — no manual action required.

Market Hours Awareness

The terminal is aware of pre-market, regular session, and after-hours trading. Data continues to stream during extended hours where your broker provides it.

Related Features

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