federal reserve new currency Knowledge

First, the strength of the index was relatively weak in the morning, and no new amount came in. After a small dive, it was directly pulled up in less than half an hour. Close to 30 points of space.What happened? Heavy content came out? V-shaped counterattack?What happened? Heavy content came out? V-shaped counterattack?

Second, today's heavy content has come out, and everyone has got the news?Third, it's hard to say, because I don't think there is any trading volume at the bottom now. Is it the behavior of retail investors themselves? Institutions do not have this range.Or try to make money by throwing the varieties high first.