My observation on before hour trading of 04/09/09

My observation on before hour trading of 04/09/09
starting from 8:00am, there 7.5 millions vol on spy and 7.5millions vol on xlf, 2.5million vol on qqqq, 150,000 vol, unusually high volumes for before hour trading. the major price goal finished in the first 45 min.
Of course people talk about WFC, also notice the following timing of that day:

International Trade
[Report][Star]8:30 AM ET

Jobless Claims
[Report][djStar]8:30 AM ET

Import and Export Prices
[Report][Bullet8:30 AM ET

Any experienced in HT share your thoughts? Thanks.