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Fourier Analysis of EXXI (Energy XXI Ltd.)

EXXI (Energy XXI Ltd.) appears to have interesting cyclic behaviour every (-79228162514264337593543950335*cosine), (-79228162514264337593543950335*cosine), and (-79228162514264337593543950335*cosine).

EXXI (Energy XXI Ltd.) has an average price of 29.12 (topmost row, frequency = 0).

Click on the checkboxes shown on the right to see how the various frequencies contribute to the graph. Look for large magnitude coefficients (sine or cosine), as these are associated with frequencies which contribute most to the associated stock plot. If you find a large magnitude coefficient which dramatically changes the graph, look at the associated "Period" in weeks, as you may have found a significant recurring cycle for the stock of interest.

Right click on the graph above to see the menu of operations (download, full screen, etc.)

Fourier Analysis

Using data from 1/9/2017 to 3/20/2017 for EXXI (Energy XXI Ltd.), this program was able to calculate the following Fourier Series:
Sequence #Cosine Coefficients Sine Coefficients FrequenciesPeriod
029.11909   0 
1-.62574 -.12805 (1*2π)/1111 weeks
2.74305 .4763 (2*2π)/116 weeks
3-.1713 .08232 (3*2π)/114 weeks
4.13849 -.13136 (4*2π)/113 weeks
5-.95358 -.3416 (5*2π)/112 weeks
6-.95358 .3416 (6*2π)/112 weeks
7.13849 .13136 (7*2π)/112 weeks
8-.1713 -.08232 (8*2π)/111 weeks
9.74305 -.4763 (9*2π)/111 weeks

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