Every single day a guy named Mr. Market offers you stocks for a certain price. You then have the option to buy, sell or do nothing. It doesn’t matter to Mr. Market what you decide to do, because he will be back with a new quote the next day anyway.
However, Mr. Market is a manic depressive guy. When he is in a good mood, he gets greedy and quotes ridiculously high prices, but when he is feeling depressed and fearful, he is willing to sell you the same stocks for rock bottom prices.
