Once when JP Morgan was asked what will the market do, he replied that it will fluctuate. That’s what the market does. Goes up and down on a daily basis. But in the long run it goes up over time. Why? Because price follows earnings. But why to earnings keep increasing? Because years ago things cost less. A candy bar cost a dime. Lets say the mantufacturer made 20% or 2 cents from each bar it sold. Now candy bars sell for 75 cents. 20% is now 15 cents. So the company is making more from each candy bar it sells. Overall the market should keep going up.