That’s because good news leaks out or is spread to insiders beforehand causing the price to go up. Then they sell when the news is made public. Its called “buy the rumor, sell the news”.
No; that’s NOT the case nor why the markets now act weirdly most of the time.
I don’t think major market moves are that nefarious; it’s more likely that the good economic news is going to cause the Fed to raise interest rates, which causes distress in the stocks markets.
Interest rates have been ridiculously low for a very long time. The Obama stock rally was completely built on extremely low interest rates and HUGH gov bailouts. Nothing else.
The Trump stock rally will have much more solid economic footing.
This selloff is a healthy, natural pullback.
Good time to buy.