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# Fourier Analysis of COBR (Cobra Electronics Corporation)

COBR (Cobra Electronics Corporation) appears to have interesting cyclic behaviour every 146 weeks (.8159*cosine), 186 weeks (.6733*sine), and 108 weeks (.4587*cosine).

COBR (Cobra Electronics Corporation) has an average price of 4.82 (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 6/30/1975 to 10/6/2014 for COBR (Cobra Electronics Corporation), this program was able to calculate the following Fourier Series:
Sequence #Cosine Coefficients Sine Coefficients FrequenciesPeriod
04.81701   0
1-.59716 -.06717 (1*2π)/20492,049 weeks
2-2.3018 -.29183 (2*2π)/20491,025 weeks
3.82634 .12969 (3*2π)/2049683 weeks
4.48311 .08763 (4*2π)/2049512 weeks
5.90622 -.88747 (5*2π)/2049410 weeks
6.40444 -.12167 (6*2π)/2049342 weeks
7-.74484 .46758 (7*2π)/2049293 weeks
8-.96566 .03493 (8*2π)/2049256 weeks
9.56758 .00906 (9*2π)/2049228 weeks
10.64459 .02616 (10*2π)/2049205 weeks
11.20821 .67332 (11*2π)/2049186 weeks
12-.4859 .05826 (12*2π)/2049171 weeks
13-.43006 -.47504 (13*2π)/2049158 weeks
14.81591 .05512 (14*2π)/2049146 weeks
15.25903 .52565 (15*2π)/2049137 weeks
16-.10479 .37273 (16*2π)/2049128 weeks
17-.31105 .1147 (17*2π)/2049121 weeks
18-.43622 -.17188 (18*2π)/2049114 weeks
19.45871 -.55089 (19*2π)/2049108 weeks
20.23998 .22086 (20*2π)/2049102 weeks
21-.11854 .47771 (21*2π)/204998 weeks
22-.29902 -.06953 (22*2π)/204993 weeks
23.02272 -.29941 (23*2π)/204989 weeks
24.04512 -.33086 (24*2π)/204985 weeks
25.15082 .30755 (25*2π)/204982 weeks
26.017 .21018 (26*2π)/204979 weeks
27-.17415 .04125 (27*2π)/204976 weeks
28-.1671 -.26459 (28*2π)/204973 weeks
29.0547 -.14709 (29*2π)/204971 weeks
30.03998 .29945 (30*2π)/204968 weeks
31-.20924 .19398 (31*2π)/204966 weeks
32-.03951 -.03302 (32*2π)/204964 weeks
33-.03463 -.30757 (33*2π)/204962 weeks
34-.12971 -.03955 (34*2π)/204960 weeks
35.07376 .08321 (35*2π)/204959 weeks
36-.13264 .01271 (36*2π)/204957 weeks
37-.04117 -.05203 (37*2π)/204955 weeks
38-.00458 -.31359 (38*2π)/204954 weeks
39.01904 -.10514 (39*2π)/204953 weeks
40.05588 .20589 (40*2π)/204951 weeks
41-.06243 .08121 (41*2π)/204950 weeks
42-.0084 -.24475 (42*2π)/204949 weeks
43-.03971 .02121 (43*2π)/204948 weeks
44.1008 -.05374 (44*2π)/204947 weeks
45.07515 -.07322 (45*2π)/204946 weeks
46-.02171 .02555 (46*2π)/204945 weeks
47-.08174 -.12951 (47*2π)/204944 weeks
48.01498 -.09263 (48*2π)/204943 weeks
49.09404 -.02435 (49*2π)/204942 weeks
50-.03535 .1194 (50*2π)/204941 weeks
51-.041 -.09776 (51*2π)/204940 weeks
52.09042 .00257 (52*2π)/204939 weeks
53.11897 .01126 (53*2π)/204939 weeks
54.0213 .02195 (54*2π)/204938 weeks
55.03937 .0667 (55*2π)/204937 weeks
56-.03694 -.03329 (56*2π)/204937 weeks
57-.08224 -.02863 (57*2π)/204936 weeks
58.09939 -.11657 (58*2π)/204935 weeks
59.10626 .02892 (59*2π)/204935 weeks
60-.02166 .02222 (60*2π)/204934 weeks
61-.06201 -.07359 (61*2π)/204934 weeks
62.02458 .02196 (62*2π)/204933 weeks
63-.01737 -.03973 (63*2π)/204933 weeks
64.06864 -.00482 (64*2π)/204932 weeks
65-.0291 -.0291 (65*2π)/204932 weeks
66-.08201 .05751 (66*2π)/204931 weeks
67.03456 -.11599 (67*2π)/204931 weeks
68-.00746 -.00559 (68*2π)/204930 weeks
69.04221 .12118 (69*2π)/204930 weeks
70-.02937 -.05706 (70*2π)/204929 weeks
71.03605 .00173 (71*2π)/204929 weeks
72-.00474 -.06795 (72*2π)/204928 weeks
73-.00364 -.05139 (73*2π)/204928 weeks
74.07551 .01362 (74*2π)/204928 weeks
75-.00823 .06561 (75*2π)/204927 weeks
76-.03506 -.03513 (76*2π)/204927 weeks
77.0438 -.07777 (77*2π)/204927 weeks
78.04742 .00496 (78*2π)/204926 weeks
79-.01505 .04521 (79*2π)/204926 weeks
80.01822 .00929 (80*2π)/204926 weeks
81-.01527 -.09248 (81*2π)/204925 weeks
82-.05418 -.00347 (82*2π)/204925 weeks
83.02202 .02065 (83*2π)/204925 weeks
84.03573 -.01687 (84*2π)/204924 weeks
85.03488 .01634 (85*2π)/204924 weeks
86-.04041 -.02446 (86*2π)/204924 weeks
87-.0274 -.04002 (87*2π)/204924 weeks
88.04265 .01933 (88*2π)/204923 weeks
89-.01981 .04393 (89*2π)/204923 weeks
90.02205 -.00461 (90*2π)/204923 weeks
91-.07023 -.02353 (91*2π)/204923 weeks
92-.0194 -.04128 (92*2π)/204922 weeks
93.00329 -.03139 (93*2π)/204922 weeks
94.05573 .08684 (94*2π)/204922 weeks
95.0034 -.04043 (95*2π)/204922 weeks
96-.00402 -.05672 (96*2π)/204921 weeks
97.01476 .00619 (97*2π)/204921 weeks
98.02294 .00054 (98*2π)/204921 weeks
99.08945 -.0215 (99*2π)/204921 weeks
100-.07067 -.0227 (100*2π)/204920 weeks
101-.01391 -.01598 (101*2π)/204920 weeks
102.02195 .02085 (102*2π)/204920 weeks
103.05176 .00755 (103*2π)/204920 weeks
104.02837 -.0563 (104*2π)/204920 weeks
105-.10107 -.00543 (105*2π)/204920 weeks
106.00938 .04584 (106*2π)/204919 weeks
107.04519 -.00367 (107*2π)/204919 weeks
108-.01498 -.04436 (108*2π)/204919 weeks
109.02279 .01182 (109*2π)/204919 weeks
110.04631 .06575 (110*2π)/204919 weeks
111.01125 .0206 (111*2π)/204918 weeks
112-.01569 .02291 (112*2π)/204918 weeks
113.04509 -.00381 (113*2π)/204918 weeks
114-.00161 .0378 (114*2π)/204918 weeks
115.00427 .05522 (115*2π)/204918 weeks
116.01932 .01117 (116*2π)/204918 weeks
117-.05522 -.00935 (117*2π)/204918 weeks
118.02943 -.03775 (118*2π)/204917 weeks
119.00417 .00754 (119*2π)/204917 weeks
120.0078 .03356 (120*2π)/204917 weeks
121-.01257 -.00488 (121*2π)/204917 weeks
122-.0167 -.03818 (122*2π)/204917 weeks
123.00307 .01622 (123*2π)/204917 weeks
124.05171 .01247 (124*2π)/204917 weeks
125.01884 .00092 (125*2π)/204916 weeks
126-.05975 -.01226 (126*2π)/204916 weeks
127-.08689 -.01053 (127*2π)/204916 weeks
128.02974 .01132 (128*2π)/204916 weeks
129.04257 .05141 (129*2π)/204916 weeks
130.04704 -.00749 (130*2π)/204916 weeks
131-.05217 -.01843 (131*2π)/204916 weeks
132-.02309 .03241 (132*2π)/204916 weeks
133.01628 -.01234 (133*2π)/204915 weeks
134.02765 -.00692 (134*2π)/204915 weeks
135.03673 .05264 (135*2π)/204915 weeks
136-.01812 -.00077 (136*2π)/204915 weeks
137.00025 -.03889 (137*2π)/204915 weeks
138-.00611 -.01238 (138*2π)/204915 weeks
139.0229 .05004 (139*2π)/204915 weeks
140-.03266 .02354 (140*2π)/204915 weeks
141-.03952 .00015 (141*2π)/204915 weeks
142-.00054 -.00989 (142*2π)/204914 weeks
143-.00684 -.05336 (143*2π)/204914 weeks
144.0019 .02152 (144*2π)/204914 weeks
145.01844 .06431 (145*2π)/204914 weeks
146-.04856 -.00159 (146*2π)/204914 weeks
147-.02232 -.02894 (147*2π)/204914 weeks
148.03592 -.05676 (148*2π)/204914 weeks
149.02809 .03396 (149*2π)/204914 weeks
150-.04461 .02859 (150*2π)/204914 weeks
151-.00152 -.03879 (151*2π)/204914 weeks
152-.02019 -.00321 (152*2π)/204913 weeks
153-.00223 -.01139 (153*2π)/204913 weeks
154.02756 -.02357 (154*2π)/204913 weeks
155-.01622 .03896 (155*2π)/204913 weeks
156-.00839 -.01852 (156*2π)/204913 weeks
157-.00289 -.01091 (157*2π)/204913 weeks
158.01995 -.01226 (158*2π)/204913 weeks
159.01912 -.00145 (159*2π)/204913 weeks
160.00841 .03204 (160*2π)/204913 weeks
161-.01869 -.02922 (161*2π)/204913 weeks
162.01808 -.02381 (162*2π)/204913 weeks
163.02897 -.00503 (163*2π)/204913 weeks
164.00193 .05739 (164*2π)/204912 weeks
165-.00686 -.02615 (165*2π)/204912 weeks
166-.04007 -.0223 (166*2π)/204912 weeks
167.00467 -.00899 (167*2π)/204912 weeks
168.00289 .00659 (168*2π)/204912 weeks
169-.03437 .02483 (169*2π)/204912 weeks
170.01641 -.03638 (170*2π)/204912 weeks
171-.03331 .02494 (171*2π)/204912 weeks
172.00635 -.00184 (172*2π)/204912 weeks
173.01299 .02077 (173*2π)/204912 weeks
174.01619   (174*2π)/204912 weeks
175-.02488 -.02295 (175*2π)/204912 weeks
176.00119 .02297 (176*2π)/204912 weeks
177.00688 -.0103 (177*2π)/204912 weeks
178.03427 .01491 (178*2π)/204912 weeks
179.01732 -.01694 (179*2π)/204911 weeks
180-.02633 -.02688 (180*2π)/204911 weeks
181.0104 -.00628 (181*2π)/204911 weeks
182.0193 .01308 (182*2π)/204911 weeks
183.00475 -.0067 (183*2π)/204911 weeks
184-.01816 -.00962 (184*2π)/204911 weeks
185-.01376 .005 (185*2π)/204911 weeks
186.00116 -.00893 (186*2π)/204911 weeks
187-.00838 .02477 (187*2π)/204911 weeks
188-.01816 -.02908 (188*2π)/204911 weeks
189.00262 .00528 (189*2π)/204911 weeks
190-.00442 .01464 (190*2π)/204911 weeks
191.01046 -.014 (191*2π)/204911 weeks
192.00257 .00048 (192*2π)/204911 weeks
193-.02687 .00083 (193*2π)/204911 weeks
194-.00664 .00866 (194*2π)/204911 weeks
195.02127 -.03344 (195*2π)/204911 weeks
196.00365 .00236 (196*2π)/204910 weeks
197-.00131 .00133 (197*2π)/204910 weeks
198-.04176 -.0362 (198*2π)/204910 weeks
199.00259 .00425 (199*2π)/204910 weeks
200-.01787 .01531 (200*2π)/204910 weeks
201.03361 .00022 (201*2π)/204910 weeks
202-.00501 -.01774 (202*2π)/204910 weeks
203-.05159 -.00549 (203*2π)/204910 weeks
204.01235 -.0142 (204*2π)/204910 weeks
205.04193 .01897 (205*2π)/204910 weeks
206.03534 -.01381 (206*2π)/204910 weeks
207-.01752 -.02829 (207*2π)/204910 weeks
208-.01884 .00075 (208*2π)/204910 weeks
209.00931 .00193 (209*2π)/204910 weeks
210.00033 .00322 (210*2π)/204910 weeks
211.01494 -.01317 (211*2π)/204910 weeks
212-.00839 -.00607 (212*2π)/204910 weeks
213-.00367 .01859 (213*2π)/204910 weeks
214.01595 -.01273 (214*2π)/204910 weeks
215.02708 -.00457 (215*2π)/204910 weeks
216-.02162 .00238 (216*2π)/20499 weeks
217-.00776 -.01493 (217*2π)/20499 weeks
218.02315 .00455 (218*2π)/20499 weeks
219-.01142 .00423 (219*2π)/20499 weeks
220.01566 -.02355 (220*2π)/20499 weeks
221-.02865 -.01031 (221*2π)/20499 weeks
222.02535 .03227 (222*2π)/20499 weeks
223.00795 -.02188 (223*2π)/20499 weeks
224.00186 -.01049 (224*2π)/20499 weeks
225-.00295 -.03013 (225*2π)/20499 weeks
226-.01003 .03622 (226*2π)/20499 weeks
227-.00266 -.00618 (227*2π)/20499 weeks
228.006 -.01632 (228*2π)/20499 weeks
229.00532 .01595 (229*2π)/20499 weeks
230.00286 -.00603 (230*2π)/20499 weeks
231.00948 .01004 (231*2π)/20499 weeks
232.02065 .02972 (232*2π)/20499 weeks
233-.01052 .01062 (233*2π)/20499 weeks
234.00833 -.02658 (234*2π)/20499 weeks
235.00802 .00998 (235*2π)/20499 weeks
236-.00518 .02709 (236*2π)/20499 weeks
237.01379 -.00485 (237*2π)/20499 weeks
238.00742 -.01229 (238*2π)/20499 weeks
239.0008 .0083 (239*2π)/20499 weeks
240-.01235 .02964 (240*2π)/20499 weeks
241-.00151 .01006 (241*2π)/20499 weeks
242-.00317 .01214 (242*2π)/20498 weeks
243-.01271 -.01076 (243*2π)/20498 weeks
244.00946 .0036 (244*2π)/20498 weeks
245-.00531 .02385 (245*2π)/20498 weeks
246-.02309 .01528 (246*2π)/20498 weeks
247-.00954 .00177 (247*2π)/20498 weeks
248-.01788 -.00204 (248*2π)/20498 weeks
249.01663 .00156 (249*2π)/20498 weeks
250-.01545 -.00774 (250*2π)/20498 weeks
251-.01321 .03264 (251*2π)/20498 weeks
252-.00024 .00283 (252*2π)/20498 weeks
253.01561 -.009 (253*2π)/20498 weeks
254.00842 .01948 (254*2π)/20498 weeks
255-.0354 .01182 (255*2π)/20498 weeks
256-.00025 -.00258 (256*2π)/20498 weeks
257.02129 -.01048 (257*2π)/20498 weeks
258.00665 .00367 (258*2π)/20498 weeks
259-.02216 -.0006 (259*2π)/20498 weeks
260-.01485 -.00592 (260*2π)/20498 weeks
261-.01178 -.01138 (261*2π)/20498 weeks
262-.00559 -.01736 (262*2π)/20498 weeks
263.00222 .00856 (263*2π)/20498 weeks
264-.02656 .013 (264*2π)/20498 weeks
265-.01122 -.01399 (265*2π)/20498 weeks
266-.00258 -.01813 (266*2π)/20498 weeks
267.00095 .02078 (267*2π)/20498 weeks
268.00248 .01828 (268*2π)/20498 weeks
269-.02463 -.00838 (269*2π)/20498 weeks
270-.0081 -.00752 (270*2π)/20498 weeks
271-.00662 -.01081 (271*2π)/20498 weeks
272.03083 .00953 (272*2π)/20498 weeks
273-.00439 .00852 (273*2π)/20498 weeks
274-.04038 -.00166 (274*2π)/20497 weeks
275-.00724 -.02107 (275*2π)/20497 weeks
276.00499 -.00153 (276*2π)/20497 weeks
277.01679 .00965 (277*2π)/20497 weeks
278.00797 -.00468 (278*2π)/20497 weeks
279-.02193 -.00906 (279*2π)/20497 weeks
280-.02361 .00784 (280*2π)/20497 weeks
281.02359 -.02691 (281*2π)/20497 weeks
282.03281 -.02551 (282*2π)/20497 weeks
283-.02146 .00877 (283*2π)/20497 weeks
284-.02165 -.01484 (284*2π)/20497 weeks
285.01004 -.02023 (285*2π)/20497 weeks
286.01915 .00081 (286*2π)/20497 weeks
287-.01128 -.00526 (287*2π)/20497 weeks
288.00247 .01118 (288*2π)/20497 weeks
289.01436 .01045 (289*2π)/20497 weeks
290-.00958 -.02581 (290*2π)/20497 weeks
291.01953 -.02053 (291*2π)/20497 weeks
292.02237 .01873 (292*2π)/20497 weeks
293-.02187 .01758 (293*2π)/20497 weeks
294-.00957 -.00681 (294*2π)/20497 weeks
295.0061 -.01131 (295*2π)/20497 weeks
296.01654 -.01613 (296*2π)/20497 weeks
297.00504 .01116 (297*2π)/20497 weeks
298-.0017 .01713 (298*2π)/20497 weeks
299.00781 .0196 (299*2π)/20497 weeks
300.01324 -.02871 (300*2π)/20497 weeks
301.01082 -.00451 (301*2π)/20497 weeks
302.00142 .02823 (302*2π)/20497 weeks
303-.00205 .00326 (303*2π)/20497 weeks
304-.00355 -.00405 (304*2π)/20497 weeks
305.00791 -.006 (305*2π)/20497 weeks
306-.00817 .01002 (306*2π)/20497 weeks
307.00602 .00852 (307*2π)/20497 weeks
308-.00898 .0023 (308*2π)/20497 weeks
309-.00973 -.00298 (309*2π)/20497 weeks
310.00098 -.02408 (310*2π)/20497 weeks
311.02648 .00149 (311*2π)/20497 weeks
312.00122 .01006 (312*2π)/20497 weeks
313-.00878 .00307 (313*2π)/20497 weeks
314-.0068 .00989 (314*2π)/20497 weeks
315.00979 -.00958 (315*2π)/20497 weeks
316.00195 -.01034 (316*2π)/20496 weeks
317.0236 .02106 (317*2π)/20496 weeks
318-.00556 .01 (318*2π)/20496 weeks
319-.04088 .00038 (319*2π)/20496 weeks
320.01586 -.02294 (320*2π)/20496 weeks
321.02326 -.02183 (321*2π)/20496 weeks
322.0006 .00601 (322*2π)/20496 weeks
323-.01136 .01312 (323*2π)/20496 weeks
324.01803 .00142 (324*2π)/20496 weeks
325-.00402 -.01392 (325*2π)/20496 weeks
326.00178 -.0015 (326*2π)/20496 weeks
327.01335 -.00574 (327*2π)/20496 weeks
328-.0271 .03355