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# Fourier Analysis of ENPH (Enphase Energy)

ENPH (Enphase Energy) appears to have interesting cyclic behaviour every 24 weeks (.3886*sine), 32 weeks (.3242*cosine), and 27 weeks (.301*cosine).

ENPH (Enphase Energy) has an average price of 5.48 (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.

## Fourier Analysis

Using data from 3/30/2012 to 4/23/2018 for ENPH (Enphase Energy), this program was able to calculate the following Fourier Series:
Sequence #Cosine Coefficients Sine Coefficients FrequenciesPeriod
05.47766   0
1-2.76624 3.5421 (1*2π)/318318 weeks
21.85036 -1.10769 (2*2π)/318159 weeks
3-.40106 1.04577 (3*2π)/318106 weeks
41.14356 -.77144 (4*2π)/31880 weeks
5.44495 .72108 (5*2π)/31864 weeks
6.40281 .33952 (6*2π)/31853 weeks
7-.11555 .19988 (7*2π)/31845 weeks
8.0959 .41825 (8*2π)/31840 weeks
9-.34261 .1143 (9*2π)/31835 weeks
10.3242 .03607 (10*2π)/31832 weeks
11-.13316 .14111 (11*2π)/31829 weeks
12.30096 -.17227 (12*2π)/31827 weeks
13.00432 .38864 (13*2π)/31824 weeks
14-.07069 -.06731 (14*2π)/31823 weeks
15.18593 -.08671 (15*2π)/31821 weeks
16.11395 .14839 (16*2π)/31820 weeks
17.01582 .03523 (17*2π)/31819 weeks
18-.0818 .14556 (18*2π)/31818 weeks
19-.11977 -.18472 (19*2π)/31817 weeks
20.10921 .01825 (20*2π)/31816 weeks
21-.11453 .13347 (21*2π)/31815 weeks
22-.07872 -.17408 (22*2π)/31814 weeks
23.00176 .17611 (23*2π)/31814 weeks
24-.06027 -.075 (24*2π)/31813 weeks
25-.01908 .12596 (25*2π)/31813 weeks
26-.05689 .08132 (26*2π)/31812 weeks
27-.02151 -.06927 (27*2π)/31812 weeks
28.01579 .23409 (28*2π)/31811 weeks
29-.00735 -.01222 (29*2π)/31811 weeks
30-.06246 .03053 (30*2π)/31811 weeks
31.01655 -.04199 (31*2π)/31810 weeks
32-.00405 -.04255 (32*2π)/31810 weeks
33.02855 .02304 (33*2π)/31810 weeks
34.08001 .05419 (34*2π)/3189 weeks
35-.13309 .05625 (35*2π)/3189 weeks
36.01255 .04148 (36*2π)/3189 weeks
37-.03404 -.17547 (37*2π)/3189 weeks
38.18776 .19949 (38*2π)/3188 weeks
39-.15003 -.02344 (39*2π)/3188 weeks
40.19481 .00705 (40*2π)/3188 weeks
41-.10159 .0623 (41*2π)/3188 weeks
42.14178 -.08356 (42*2π)/3188 weeks
43-.00494 .07329 (43*2π)/3187 weeks
44.07572 -.08741 (44*2π)/3187 weeks
45.05691 .15773 (45*2π)/3187 weeks
46-.14233 -.04363 (46*2π)/3187 weeks
47.11106 -.0784 (47*2π)/3187 weeks
48.03049 .04614 (48*2π)/3187 weeks
49.08028 -.08178 (49*2π)/3186 weeks
50.00138 .09475 (50*2π)/3186 weeks
51.06209 -.06009 (51*2π)/3186 weeks
52.0686 .04719 (52*2π)/3186 weeks
53.00981 -.04243 (53*2π)/3186 weeks
54.13046 .01029 (54*2π)/3186 weeks
55.03324 .06287 (55*2π)/3186 weeks
56.03471 .00988 (56*2π)/3186 weeks
57.06756 .05957 (57*2π)/3186 weeks
58-.02808 -.02367 (58*2π)/3185 weeks
59-.00501 .01542 (59*2π)/3185 weeks
60.03119 .02013 (60*2π)/3185 weeks
61-.04801 -.06312 (61*2π)/3185 weeks
62.12662 .06152 (62*2π)/3185 weeks
63-.0504 -.03887 (63*2π)/3185 weeks
64.07056 .06277 (64*2π)/3185 weeks
65-.05477 .05436 (65*2π)/3185 weeks
66.0551 -.02812 (66*2π)/3185 weeks
67-.00189 .08892 (67*2π)/3185 weeks
68-.03675 -.05926 (68*2π)/3185 weeks
69.01605 .07317 (69*2π)/3185 weeks
70-.06762 -.00787 (70*2π)/3185 weeks
71.04715 .00388 (71*2π)/3184 weeks
72-.05748 .04268 (72*2π)/3184 weeks
73-.01533 -.03288 (73*2π)/3184 weeks
74.00056 .00613 (74*2π)/3184 weeks
75.01008 .01639 (75*2π)/3184 weeks
76-.00016 .03821 (76*2π)/3184 weeks
77-.03672 -.00842 (77*2π)/3184 weeks
78.00422 -.00122 (78*2π)/3184 weeks
79.0359 -.01746 (79*2π)/3184 weeks
80-.01098 .0432 (80*2π)/3184 weeks
81.00525 -.01794 (81*2π)/3184 weeks
82-.02719 -.00758 (82*2π)/3184 weeks
83.02861 -.02757 (83*2π)/3184 weeks
84-.01122 .02701 (84*2π)/3184 weeks
85.02588 .02568 (85*2π)/3184 weeks
86-.04529 -.01971 (86*2π)/3184 weeks
87.04252 -.01547 (87*2π)/3184 weeks
88-.0167 .02123 (88*2π)/3184 weeks
89.03474 -.03153 (89*2π)/3184 weeks
90-.01071 .061 (90*2π)/3184 weeks
91.0401 -.03092 (91*2π)/3183 weeks
92.00661 .05854 (92*2π)/3183 weeks
93-.00158 .01601 (93*2π)/3183 weeks
94-.02093 -.00108 (94*2π)/3183 weeks
95.03024 -.00434 (95*2π)/3183 weeks
96-.0228 .0372 (96*2π)/3183 weeks
97.01675 -.01881 (97*2π)/3183 weeks
98-.03974 .05207 (98*2π)/3183 weeks
99-.03673 -.05671 (99*2π)/3183 weeks
100.02023 .02927 (100*2π)/3183 weeks
101-.05076 -.044 (101*2π)/3183 weeks
102.05757 .0284 (102*2π)/3183 weeks
103-.0172 -.0012 (103*2π)/3183 weeks
104.02656 .04912 (104*2π)/3183 weeks
105-.0289 -.00178 (105*2π)/3183 weeks
106-.00535 .0018 (106*2π)/3183 weeks
107-.01335 .01666 (107*2π)/3183 weeks
108.01185 -.05415 (108*2π)/3183 weeks
109.01303 .04722 (109*2π)/3183 weeks
110-.01836 -.03192 (110*2π)/3183 weeks
111.00365 .03155 (111*2π)/3183 weeks
112-.01427 -.05797 (112*2π)/3183 weeks
113.06004 .0128 (113*2π)/3183 weeks
114.02684 .00654 (114*2π)/3183 weeks
115-.01444 .0056 (115*2π)/3183 weeks
116.02794 -.02593 (116*2π)/3183 weeks
117.00094 -.01436 (117*2π)/3183 weeks
118.05239 -.0064 (118*2π)/3183 weeks
119.01898 .00565 (119*2π)/3183 weeks
120.00331 -.02642 (120*2π)/3183 weeks
121.04455 .03094 (121*2π)/3183 weeks
122-.01202 -.00544 (122*2π)/3183 weeks
123.02955 .00872 (123*2π)/3183 weeks
124.02231 -.00008 (124*2π)/3183 weeks
125.00171 .04178 (125*2π)/3183 weeks
126-.02651 .0032 (126*2π)/3183 weeks
127.0335 .00889 (127*2π)/3183 weeks
128-.02751 .01499 (128*2π)/3182 weeks
129.07094 -.01094 (129*2π)/3182 weeks
130.00095 .06215 (130*2π)/3182 weeks
131.01212 .00577 (131*2π)/3182 weeks
132.01928 .05273 (132*2π)/3182 weeks
133-.02039 .02831 (133*2π)/3182 weeks
134.02754 -.00023 (134*2π)/3182 weeks
135-.02093 .03315 (135*2π)/3182 weeks
136.04272 -.03111 (136*2π)/3182 weeks
137-.00307 .07867 (137*2π)/3182 weeks
138-.02994 -.01665 (138*2π)/3182 weeks
139.03257 .01995 (139*2π)/3182 weeks
140-.00615 .01286 (140*2π)/3182 weeks
141.01 .00596 (141*2π)/3182 weeks
142.01401 .00884 (142*2π)/3182 weeks
143-.0033 .03459 (143*2π)/3182 weeks
144.00554 -.02102 (144*2π)/3182 weeks
145.01229 -.01688 (145*2π)/3182 weeks
146.0415 .03506 (146*2π)/3182 weeks
147-.03959 -.02457 (147*2π)/3182 weeks
148.04268 .00604 (148*2π)/3182 weeks
149-.03631 -.01095 (149*2π)/3182 weeks
150.02937 -.01176 (150*2π)/3182 weeks
151-.04151 .00441 (151*2π)/3182 weeks
152.01806 -.04512 (152*2π)/3182 weeks
153.01744 .00325 (153*2π)/3182 weeks
154-.01295 .00807 (154*2π)/3182 weeks
155.01511 -.02282 (155*2π)/3182 weeks
156-.00779 -.01091 (156*2π)/3182 weeks
157.03081 -.00543 (157*2π)/3182 weeks
158.03052 .00932 (158*2π)/3182 weeks
159-.01915   (159*2π)/3182 weeks
160.03052 -.00932 (160*2π)/3182 weeks
161.03081 .00543 (161*2π)/3182 weeks
162-.00779 .01091 (162*2π)/3182 weeks
163.01511 .02282 (163*2π)/3182 weeks
164-.01295 -.00807 (164*2π)/3182 weeks
165.01744 -.00325 (165*2π)/3182 weeks
166.01806 .04512 (166*2π)/3182 weeks
167-.04151 -.00441 (167*2π)/3182 weeks
168.02937 .01176 (168*2π)/3182 weeks
169-.03631 .01095 (169*2π)/3182 weeks
170.04268 -.00604 (170*2π)/3182 weeks
171-.03959 .02457 (171*2π)/3182 weeks
172.0415 -.03506 (172*2π)/3182 weeks
173.01229 .01688 (173*2π)/3182 weeks
174.00554 .02102 (174*2π)/3182 weeks
175-.0033 -.03459 (175*2π)/3182 weeks
176.01401 -.00884 (176*2π)/3182 weeks
177.01 -.00596 (177*2π)/3182 weeks
178-.00615 -.01286 (178*2π)/3182 weeks
179.03257 -.01995 (179*2π)/3182 weeks
180-.02994 .01665 (180*2π)/3182 weeks
181-.00307 -.07867 (181*2π)/3182 weeks
182.04272 .03111 (182*2π)/3182 weeks
183-.02093 -.03315 (183*2π)/3182 weeks
184.02754 .00023 (184*2π)/3182 weeks
185-.02039 -.02831 (185*2π)/3182 weeks
186.01928 -.05273 (186*2π)/3182 weeks
187.01212 -.00577 (187*2π)/3182 weeks
188.00095 -.06215 (188*2π)/3182 weeks
189.07094 .01094 (189*2π)/3182 weeks
190-.02751 -.01499 (190*2π)/3182 weeks
191.0335 -.00889 (191*2π)/3182 weeks
192-.02651 -.0032 (192*2π)/3182 weeks
193.00171 -.04178 (193*2π)/3182 weeks
194.02231 .00008 (194*2π)/3182 weeks
195.02955 -.00872 (195*2π)/3182 weeks
196-.01202 .00544 (196*2π)/3182 weeks
197.04455 -.03094 (197*2π)/3182 weeks
198.00331 .02642 (198*2π)/3182 weeks
199.01898 -.00565 (199*2π)/3182 weeks
200.05239 .0064 (200*2π)/3182 weeks
201.00094 .01436 (201*2π)/3182 weeks
202.02794 .02593 (202*2π)/3182 weeks
203-.01444 -.0056 (203*2π)/3182 weeks
204.02684 -.00654 (204*2π)/3182 weeks
205.06004 -.0128 (205*2π)/3182 weeks
206-.01427 .05797 (206*2π)/3182 weeks
207.00365 -.03155 (207*2π)/3182 weeks
208-.01836 .03192 (208*2π)/3182 weeks
209.01303 -.04722 (209*2π)/3182 weeks
210.01185 .05415 (210*2π)/3182 weeks
211-.01335 -.01666 (211*2π)/3182 weeks
212-.00535 -.0018 (212*2π)/3182 weeks
213-.0289 .00178 (213*2π)/3181 weeks
214.02656 -.04912 (214*2π)/3181 weeks
215-.0172 .0012 (215*2π)/3181 weeks
216.05757 -.0284 (216*2π)/3181 weeks
217-.05076 .044 (217*2π)/3181 weeks
218.02023 -.02927 (218*2π)/3181 weeks
219-.03673 .05671 (219*2π)/3181 weeks
220-.03974 -.05207 (220*2π)/3181 weeks
221.01675 .01881 (221*2π)/3181 weeks
222-.0228 -.0372 (222*2π)/3181 weeks
223.03024 .00434 (223*2π)/3181 weeks
224-.02093 .00108 (224*2π)/3181 weeks
225-.00158 -.01601 (225*2π)/3181 weeks
226.00661 -.05854 (226*2π)/3181 weeks
227.0401 .03092 (227*2π)/3181 weeks
228-.01071 -.061 (228*2π)/3181 weeks
229.03474 .03153 (229*2π)/3181 weeks
230-.0167 -.02123 (230*2π)/3181 weeks
231.04252 .01547 (231*2π)/3181 weeks
232-.04529 .01971 (232*2π)/3181 weeks
233.02588 -.02568 (233*2π)/3181 weeks
234-.01122 -.02701 (234*2π)/3181 weeks
235.02861 .02757 (235*2π)/3181 weeks
236-.02719 .00758 (236*2π)/3181 weeks
237.00525 .01794 (237*2π)/3181 weeks
238-.01098 -.0432 (238*2π)/3181 weeks
239.0359 .01746 (239*2π)/3181 weeks
240.00422 .00122 (240*2π)/3181 weeks
241-.03672 .00842 (241*2π)/3181 weeks
242-.00016 -.03821 (242*2π)/3181 weeks
243.01008 -.01639 (243*2π)/3181 weeks
244.00056 -.00613 (244*2π)/3181 weeks
245-.01533 .03288 (245*2π)/3181 weeks
246-.05748 -.04268 (246*2π)/3181 weeks
247.04715 -.00388 (247*2π)/3181 weeks
248-.06762 .00787 (248*2π)/3181 weeks
249.01605 -.07317 (249*2π)/3181 weeks
250-.03675 .05926 (250*2π)/3181 weeks
251-.00189 -.08892 (251*2π)/3181 weeks
252.0551 .02812 (252*2π)/3181 weeks
253-.05477 -.05436 (253*2π)/3181 weeks
254.07056 -.06277 (254*2π)/3181 weeks
255-.0504 .03887 (255*2π)/3181 weeks
256.12662 -.06152 (256*2π)/3181 weeks
257-.04801 .06312 (257*2π)/3181 weeks
258.03119 -.02013 (258*2π)/3181 weeks
259-.00501 -.01542 (259*2π)/3181 weeks
260-.02808 .02367 (260*2π)/3181 weeks
261.06756 -.05957 (261*2π)/3181 weeks
262.03471 -.00988 (262*2π)/3181 weeks
263.03324 -.06287 (263*2π)/3181 weeks
264.13046 -.01029 (264*2π)/3181 weeks
265.00981 .04243 (265*2π)/3181 weeks
266.0686 -.04719 (266*2π)/3181 weeks
267.06209 .06009 (267*2π)/3181 weeks
268.00138 -.09475 (268*2π)/3181 weeks
269.08028 .08178 (269*2π)/3181 weeks
270.03049 -.04614 (270*2π)/3181 weeks
271.11106 .0784 (271*2π)/3181 weeks
272-.14233 .04363 (272*2π)/3181 weeks
273.05691 -.15773 (273*2π)/3181 weeks
274.07572 .08741 (274*2π)/3181 weeks
275-.00494 -.07329 (275*2π)/3181 weeks
276.14178 .08356 (276*2π)/3181 weeks
277-.10159 -.0623 (277*2π)/3181 weeks
278.19481 -.00705 (278*2π)/3181 weeks
279-.15003 .02344 (279*2π)/3181 weeks
280.18776 -.19949 (280*2π)/3181 weeks
281-.03404 .17547 (281*2π)/3181 weeks
282.01255 -.04148 (282*2π)/3181 weeks
283-.13309 -.05625 (283*2π)/3181 weeks
284.08001 -.05419 (284*2π)/3181 weeks
285.02855 -.02304 (285*2π)/3181 weeks
286-.00405 .04255 (286*2π)/3181 weeks
287.01655 .04199 (287*2π)/3181 weeks
288-.06246 -.03053 (288*2π)/3181 weeks
289-.00735 .01222 (289*2π)/3181 weeks
290.01579 -.23409 (290*2π)/3181 weeks
291-.02151 .06927 (291*2π)/3181 weeks
292-.05689 -.08132 (292*2π)/3181 weeks
293-.01908 -.12596 (293*2π)/3181 weeks
294-.06027 .075 (294*2π)/3181 weeks
295.00176 -.17611 (295*2π)/3181 weeks
296-.07872 .17408 (296*2π)/3181 weeks
297-.11453 -.13347 (297*2π)/3181 weeks
298.10921 -.01825 (298*2π)/3181 weeks
299-.11977 .18472 (299*2π)/3181 weeks
300-.0818 -.14556 (300*2π)/3181 weeks
301.01582 -.03523 (301*2π)/3181 weeks
302.11395 -.14839 (302*2π)/3181 weeks
303.18593 .08671 (303*2π)/3181 weeks
304-.07069 .06731 (304*2π)/3181 weeks
305.00432 -.38864 (305*2π)/3181 weeks
306.30096 .17227 (306*2π)/3181 weeks
307-.13316 -.14111 (307*2π)/3181 weeks
308.3242 -.03607 (308*2π)/3181 weeks
309-.34261 -.1143 (309*2π)/3181 weeks
310.0959 -.41825 (310*2π)/3181 weeks
311-.11555 -.19988 (311*2π)/3181 weeks
312.40281 -.33952 (312*2π)/3181 weeks
313.44495 -.72108 (313*2π)/3181 weeks
3141.14356 .77144 (314*2π)/3181 weeks
315-.40106 -1.04577 (315*2π)/3181 weeks
3161.85036 1.10769 (316*2π)/3181 weeks