People tend to think of the stock market as something that moves up and down like an airplane. There are problems with this way of thinking that cause investors to make poor choices.
If the stock market really were like an airplane, it would have momentum that makes it difficult for the market to change direction from rising to falling or vice-versa. The truth is that prices can change on a dime because they are determined by the bid and ask prices of traders who can change their minds in an instant. There is a technical concept of momentum in stock prices, but it isn’t the same as momentum in physics; there is no physical object that must be slowed down and turned in the other direction.
The problem with a false analogy like the airplane is that it creates the illusion that if markets move in one direction a few days in a row, they are almost certain to continue that way for a while. But this isn’t true for stocks.
The recent downtrend in stock prices has many commentators saying that we are “in a correction.” But all we can say with any certainty is that we have had a correction. It may or may not continue. Saying that we are in a correction implies that falling prices will continue over the short term, which is far from certain.
The wiring of our brains makes humans very good as finding patterns. The trouble is that we sometimes see patterns that aren’t there. Stock prices over the short term are largely random. If you think you see a pattern, blame your brain.