# News catalog — Tickerbot Stock news API

2 columns. Group overview from https://tickerbot.io/docs/signals/catalog/news/ · full catalog: https://tickerbot.io/docs/signals/catalog.md · concept: https://tickerbot.io/docs/signals.md

Signals derived from news coverage: article volume and sentiment.

- [news_volume](https://tickerbot.io/docs/signals/news_volume.md) (numeric) — Count of news articles published in the last 24 hours mentioning this ticker with a relevance score ≥ 0.6. Refreshed every 15 minutes. Null when no qualifying articles in the window.
- [news_volume_weighted_sentiment](https://tickerbot.io/docs/signals/news_volume_weighted_sentiment.md) (numeric) — Range -1.0 to +1.0. The relevance-weighted average sentiment of articles in the last 24 hours, attenuated by `tanh(news_volume / 15)` so quiet tickers (1-2 articles) read near zero regardless of sentiment sign. Strong negative = loud bad news; strong positive = loud good news; values near 0 = quiet or mixed. Null when no qualifying articles.