Almost every market session open will experience manipulation, typically within the first hour of New York market open, where price sweeps out liquidity (session highs/lows, relative equal highs/lows, or low resistance liquidity) to fill market maker orders.
"I'm really never going to be trading an hour after New York market opens because there's almost always going to be a form of manipulation taking out either session highs and lows, relative equal highs and lows, equal highs and lows, or low resistance highs and lows within the market at session and market opens. So, every single market open, what do I know is going to happen? There's going to be some form of manipulation"