Wall Street Horizon's historical corporate event data are the industry's largest, most detailed and most accurate archiving of this type of event data. We archive data as we publish it. Most data are available from 2006, however, inquire for specifics. Looking back at single-stock events, and more specifically, analyzing what information was known about them and when it was made public, yields unique intelligence about their market impact. Quantitative traders and analysts can gain valuable insights from this intelligence to use in strategy development and model back-testing. Using Wall Street Horizon historical data as a primary data source, independent academic studies have shown that market volatility can be anticipated by the scheduling and revisions in corporate events. For details, refer to our whitepaper Exploring Event Data and Volatility. Wall Street Horizon offers historical data for approximately 40 event types. The broad categories are as follows: Earnings Announcements Dividends ETFs Corporate Actions Investor Event Calendar Company Events Industry Data Calendar Data