Global Financial Database
- United States
- Daily
- 1800's-present
- Web-based; no special access required
- API available to those with demonstrated academic need; contact the Business Librarians for more information
CRSP
- United States
- Daily
- 1925-present
- Access via WRDS
TAQ
- United States
- Intraday
- 1993-2012: Second resolution
- 2010-present: Millisecond resolution
- Access via WRDS