Stock Predictor guide
Downloading Historical Data
After you add stocks, download their historical data. Quotes come from free internet sources, with no data feed charges.
Update all symbols
Choose Data > Update All or click 
on the toolbar. Use the same command later to bring older data up to date.
Update one symbol
Choose Data > Update Current or click 
on the toolbar to update the selected symbol. You can also right-click the symbol in the Companies tab and choose Update.
Stock Predictor shows data back to January 1, 1994. Quotes are end-of-day and may be delayed.
“Historical quotes are not available”
This message means the symbol is no longer valid or the data source has no data for it. Check the symbol on finance.yahoo.com. Stocks listed outside the US need an exchange suffix – see supported exchanges.
You can also load your own end-of-day data from text files – see importing data.