Stock Analysis

Stock Analysis is an app that retrieves stock data for any stock symbol that can be found on Google Finance. Then you can visualize the stock data in a graph. You can then see the curves that best fit the stock data. ( For example: the best fit LINE through the data, or the best fit PARABOLA, EXPONENTIAL, or SINUSOIDAL curves for the data.) You can also see a visual representation of the Fast Fourier Transform of the stock data on the graph, which you can use to examine other possible sinusoidal curves.
By examining the right side of the curves and stock data, you can see that the most recent actual stock price is either above or below each curve. If the actual stock value is below what the curve would predict, you could say the stock is "under-valued" for this particular curve and data set. Similarly, if the actual stock value is above the curve, you could say that the stock is "over-valued" for this particular curve and data set.
Notice how you can often change whether a stock is "over-" or "under-valued" simply by changing the number of days in the data set, or by changing the curve.

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Pages

Stock Analysis has 3 main pages.
1. The Main Page, where you enter the stock symbol, and fetch the data.
2. The Graph Page, where you examine the stock data and the best fit curves.
3. And an Information Page, where you can find this information, and more.
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The Main Page

Normal use:
Normally, you will enter the stock symbol for the stock you are interested in examining. Then you will select the Fetch menu option (the down arrow), and then you will select the Graph menu option to go to the graph page.

The Graph Page

Normal use:
Normally, when you get to this page, you select one of the radio buttons to select how many days worth of data you wish to examine. Then, you select your favorite curve. Notice three things about your curve. First, notice how much above or below the actual stock price is from your curve. (Find the right edge of the red line (the stock price data), and then look directly above or below it to your "best fit" line. You can tell how much above or below it actually is from the red and green numbers below.) Second, notice whether your curve is curving up or down. And third, next to your curve's checkbox is the actual equation for your curve. All this can be used to gain insight into the stock's history. One final thing - on the right side of the curve's equation is a red or green number.
A red number tells you that the actual stock price is higher than your curve would predict, and so the stock is "over-valued", and you should consider selling it, especially if your curve is bending downward.
A green number tells you that the actual price of the stock is lower than your curve would predict, so it is "under-valued", and you should consider buying it, especially if your curve is bending upward. (NOTICE: you can often change whether a stock is "over-" or "under-valued" simply by changing the number of days you are examining, or by changing the curve you are using. In other words, "over-valued" and "under-valued", in this sense, have NO RELATION TO THE REAL VALUE of the stock!)