| ticker,when,price | |
| APPL,2001-01-01 00:00:00,1 | |
| APPL,2001-01-01 00:01:00,2 | |
| APPL,2001-01-01 00:02:00,3 | |
| MSFT,2001-01-01 00:00:00,1 | |
| MSFT,2001-01-01 00:01:00,2 | |
| MSFT,2001-01-01 00:02:00,3 | |
| GOOG,2001-01-01 00:00:00,1 | |
| GOOG,2001-01-01 00:01:00,2 | |
| GOOG,2001-01-01 00:02:00,3 | |