The price of a stock is very dynamic and depends on the demand and supply of that stock. Demand is mostly associated with the good news about the company or the economy or the country it is associated to, favorable policy changes, the price at that time etc.

The supply is associated with all the negatives on the same lines.

The person who can predict these in advance will always make lots of money and the wrong guesses may lead to losses.

The stock price is usually associated with what the investors think about that company’s future  prospects.

Stock market returns and risks are always directly proportional