Where the term comes from
Alternative data is an investment industry term for data beyond company filings and market prices: card transaction panels, web scraping, satellite imagery, foot traffic, job postings and app usage. Hedge funds and asset managers buy it for signals on company performance.
How it differs from AI training data
| Alternative data | AI training data | |
|---|---|---|
| Buyer | Investors and analysts | AI developers |
| Purpose | Signals and forecasts | Teaching models skills and knowledge |
| Form | Aggregated metrics, time series | Raw text, audio, video, code, actions |
| Freshness | Critical, often daily | Less important than coverage and quality |
Overlap
Some datasets serve both markets, such as product reviews or job postings. The rights and privacy questions are similar, but buyers, pricing and contract terms differ. AI Data For Sale works on AI training data, not investment signals.