Stock charts, by itself without a history of what is being traded, is a bunch of hooey. Data without context is worthless. Even though 2 different charts look

Stock charts, by itself without a history of what is being traded, is a bunch of hooey. Data without context is worthless. Even though 2 different charts look the same, the reasons may be different. One could be because a company is doing so well that they are constantly running out of stock (Nintendo) versus another company who's just had their 4th lead paint recall (Toy's R Us).