How can you read this chart, and infer from it that the activity is due to having already read the report?

Surely everyone knew that the report would be released at 10:30, and they had strategies (or hedged positions) that were not as likely to be influenced by the contents of the report as by the market forces surrounding their orders?

I'm not, I'm not certain of that at all.

I don't have any idea, I don't want to sound snarky,

I read the headline and jumped to the same conclusions as everyone else. Jumped on Twitter and re-tweeted, all I had to say was "incredible"

After having some time to think about it, all I can say is...

Can you imagine how many people would be fired already if their dots were 5 seconds on the wrong side of 10:30, instead of being 400ms early?