QuoteServer (PHP)

Lightweight server that can process queries for EOD and historical data.

Scraper

The QuoteServer scraper runs every day and scrapes data from different sources for multiple exchanges.

Gets symbol listing from these sources: * http://www.nasdaq.com/screening/companies-by-name.aspx?letter=0&exchange=nasdaq&render=download * http://www.nasdaq.com/screening/companies-by-name.aspx?letter=0&exchange=nyse&render=download * http://www.nasdaq.com/screening/companies-by-name.aspx?letter=0&exchange=amex&render=download

Gets EOD data from Yahoo! finance.

API

Can output JSON or return a ZIP of CSV files.

/?s={comma-separated symbols list}&e={exchange}&t={date or date range or number of days of data in the past (1 = today if trading day)}&f={json|zip} If e is specified, s is ignored. If tis not specified, only the latest day of data is returned. If f is not specified, JSON is the default. /?stats returns statistics in JSON format about the contents of the database. /?dump returns a ZIP file containing all of the historical data for every stock in the database.

Technical

Lightweight (doesn’t use a framework). Easy to spawn (no configuration, no installation required: deploy and run, it takes care of creating the database tables). To gain the most out of this component, it makes sense to deploy it on a server with high bandwidth and low disk latency (lots of database querying, returns huge chunks of data).