Back to list of Stocks    See Also: Seasonal Analysis of YELPGenetic Algorithms Stock Portfolio Generator, and Fourier Calculator

Fourier Analysis of YELP (Yelp Inc)


YELP (Yelp Inc) appears to have interesting cyclic behaviour every 26 weeks (2.2304*cosine), 22 weeks (2.0822*sine), and 23 weeks (2.0055*cosine).

YELP (Yelp Inc) has an average price of 40.32 (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 3/2/2012 to 7/10/2017 for YELP (Yelp Inc), this program was able to calculate the following Fourier Series:
Sequence #Cosine Coefficients Sine Coefficients FrequenciesPeriod
040.32192   0 
1-18.20809 9.1817 (1*2π)/281281 weeks
25.79721 -15.09472 (2*2π)/281141 weeks
31.50299 -.93748 (3*2π)/28194 weeks
4-2.63201 2.48479 (4*2π)/28170 weeks
5-2.0918 -.26547 (5*2π)/28156 weeks
6.68741 -1.34149 (6*2π)/28147 weeks
7.51789 .94454 (7*2π)/28140 weeks
8-.21322 -2.65881 (8*2π)/28135 weeks
9-.77283 2.14986 (9*2π)/28131 weeks
10.80904 -1.83915 (10*2π)/28128 weeks
112.23035 .40401 (11*2π)/28126 weeks
12-2.00546 1.84362 (12*2π)/28123 weeks
131.24458 -2.08223 (13*2π)/28122 weeks
14.47634 .46597 (14*2π)/28120 weeks
15-1.5149 .15267 (15*2π)/28119 weeks
16-.045 -1.00117 (16*2π)/28118 weeks
17.59486 1.19366 (17*2π)/28117 weeks
18-.70379 -.48445 (18*2π)/28116 weeks
191.23322 .41061 (19*2π)/28115 weeks
20-.47658 .76536 (20*2π)/28114 weeks
21.41724 -.66588 (21*2π)/28113 weeks
22-.90478 .72815 (22*2π)/28113 weeks
23.11208 -.66389 (23*2π)/28112 weeks
24.35294 .06478 (24*2π)/28112 weeks
25-1.05367 -.73246 (25*2π)/28111 weeks
26.48721 -.65082 (26*2π)/28111 weeks
27-.17565 -.37053 (27*2π)/28110 weeks
28.14491 .03417 (28*2π)/28110 weeks
29-.77608 -.28436 (29*2π)/28110 weeks
30.25778 -.22504 (30*2π)/2819 weeks
31-.39703 .2298 (31*2π)/2819 weeks
32.39033 -.30797 (32*2π)/2819 weeks
33-.27802 .08864 (33*2π)/2819 weeks
34-.16642 -.69442 (34*2π)/2818 weeks
35.49799 .06646 (35*2π)/2818 weeks
36-.42664 -.31987 (36*2π)/2818 weeks
37-.19484 -.54463 (37*2π)/2818 weeks
38-.09376 .48449 (38*2π)/2817 weeks
39-.31867 .24837 (39*2π)/2817 weeks
40-.04742 .07558 (40*2π)/2817 weeks
41.1833 -.14356 (41*2π)/2817 weeks
42-.1391 .10472 (42*2π)/2817 weeks
43.04052 -.22965 (43*2π)/2817 weeks
44-.45433 .12407 (44*2π)/2816 weeks
45.16134 -.09899 (45*2π)/2816 weeks
46.25165 .18858 (46*2π)/2816 weeks
47.02226 -.16187 (47*2π)/2816 weeks
48.17574 -.45001 (48*2π)/2816 weeks
49.30422 -.41144 (49*2π)/2816 weeks
50.07883 -.05493 (50*2π)/2816 weeks
51-.15629 .04052 (51*2π)/2816 weeks
52.16778 -.20068 (52*2π)/2815 weeks
53-.07993 .00135 (53*2π)/2815 weeks
54-.01984 .21247 (54*2π)/2815 weeks
55.05698 -.3405 (55*2π)/2815 weeks
56-.09927 -.07119 (56*2π)/2815 weeks
57.04426 -.35025 (57*2π)/2815 weeks
58.15892 .11101 (58*2π)/2815 weeks
59-.14282 -.3065 (59*2π)/2815 weeks
60.15772 -.27065 (60*2π)/2815 weeks
61-.02486 .28862 (61*2π)/2815 weeks
62-.19059 -.17855 (62*2π)/2815 weeks
63.25725 -.37208 (63*2π)/2814 weeks
64-.03288 .38232 (64*2π)/2814 weeks
65-.24742 .0432 (65*2π)/2814 weeks
66-.1308 .09854 (66*2π)/2814 weeks
67.02663 .04805 (67*2π)/2814 weeks
68-.15313 -.15139 (68*2π)/2814 weeks
69.15259 -.02221 (69*2π)/2814 weeks
70.07371 .05571 (70*2π)/2814 weeks
71-.44229 -.29753 (71*2π)/2814 weeks
72.46912 -.22839 (72*2π)/2814 weeks
73.15379 .20991 (73*2π)/2814 weeks
74-.10143 -.34859 (74*2π)/2814 weeks
75.23638 .08726 (75*2π)/2814 weeks
76.24273 .15675 (76*2π)/2814 weeks
77-.26105 -.23717 (77*2π)/2814 weeks
78.17844 -.1201 (78*2π)/2814 weeks
79-.17083 .02975 (79*2π)/2814 weeks
80-.09134 -.02969 (80*2π)/2814 weeks
81.27465 -.1372 (81*2π)/2813 weeks
82-.24201 -.25571 (82*2π)/2813 weeks
83.28988 -.07723 (83*2π)/2813 weeks
84-.05734 .06102 (84*2π)/2813 weeks
85-.26722 -.09139 (85*2π)/2813 weeks
86.12419 -.04855 (86*2π)/2813 weeks
87-.08032 -.04186 (87*2π)/2813 weeks
88-.13884 .06705 (88*2π)/2813 weeks
89.14762 -.10161 (89*2π)/2813 weeks
90-.25898 .27915 (90*2π)/2813 weeks
91.16821 -.21871 (91*2π)/2813 weeks
92.07932 .02879 (92*2π)/2813 weeks
93-.1931 .21717 (93*2π)/2813 weeks
94.22232 -.59778 (94*2π)/2813 weeks
95.00413 .19435 (95*2π)/2813 weeks
96.00754 -.19592 (96*2π)/2813 weeks
97-.03756 .17116 (97*2π)/2813 weeks
98.16169 -.21156 (98*2π)/2813 weeks
99.11109 .1517 (99*2π)/2813 weeks
100-.12839 .07906 (100*2π)/2813 weeks
101-.07054 -.21538 (101*2π)/2813 weeks
102.0957 .35282 (102*2π)/2813 weeks
103-.06495 .06679 (103*2π)/2813 weeks
104-.0369 -.01483 (104*2π)/2813 weeks
105-.23935 -.00748 (105*2π)/2813 weeks
106.08683 -.30383 (106*2π)/2813 weeks
107-.06008 .10216 (107*2π)/2813 weeks
108-.0998 -.10514 (108*2π)/2813 weeks
109-.14916 -.29993 (109*2π)/2813 weeks
110.07437 .02048 (110*2π)/2813 weeks
111.02504 -.00217 (111*2π)/2813 weeks
112-.3076 .0632 (112*2π)/2813 weeks
113.09721 -.16539 (113*2π)/2812 weeks
114-.01543 .13228 (114*2π)/2812 weeks
115.04021 .0624 (115*2π)/2812 weeks
116-.16997 -.07335 (116*2π)/2812 weeks
117.09403 -.11953 (117*2π)/2812 weeks
118-.20914 -.09645 (118*2π)/2812 weeks
119-.10536 .10517 (119*2π)/2812 weeks
120-.03267 .02246 (120*2π)/2812 weeks
121-.02864 -.10723 (121*2π)/2812 weeks
122.11837 -.01712 (122*2π)/2812 weeks
123-.11484 .01176 (123*2π)/2812 weeks
124-.21127 -.13669 (124*2π)/2812 weeks
125.33086 -.17595 (125*2π)/2812 weeks
126-.00915 .21988 (126*2π)/2812 weeks
127.00117 .02378 (127*2π)/2812 weeks
128-.06257 -.1757 (128*2π)/2812 weeks
129.28095 .14128 (129*2π)/2812 weeks
130-.04921 .08024 (130*2π)/2812 weeks
131-.27509 -.24467 (131*2π)/2812 weeks
132.20287 .04584 (132*2π)/2812 weeks
133-.04357 -.15409 (133*2π)/2812 weeks
134-.12563 .00274 (134*2π)/2812 weeks
135-.06069 -.30158 (135*2π)/2812 weeks
136.03888 .04779 (136*2π)/2812 weeks
137.08601 .02655 (137*2π)/2812 weeks
138-.17808 -.2322 (138*2π)/2812 weeks
139.48635 -.03033 (139*2π)/2812 weeks
140-.18165 .22497 (140*2π)/2812 weeks
141-.18165 -.22497 (141*2π)/2812 weeks
142.48635 .03033 (142*2π)/2812 weeks
143-.17808 .2322 (143*2π)/2812 weeks
144.08601 -.02655 (144*2π)/2812 weeks
145.03888 -.04779 (145*2π)/2812 weeks
146-.06069 .30158 (146*2π)/2812 weeks
147-.12563 -.00274 (147*2π)/2812 weeks
148-.04357 .15409 (148*2π)/2812 weeks
149.20287 -.04584 (149*2π)/2812 weeks
150-.27509 .24467 (150*2π)/2812 weeks
151-.04921 -.08024 (151*2π)/2812 weeks
152.28095 -.14128 (152*2π)/2812 weeks
153-.06257 .1757 (153*2π)/2812 weeks
154.00117 -.02378 (154*2π)/2812 weeks
155-.00915 -.21988 (155*2π)/2812 weeks
156.33086 .17595 (156*2π)/2812 weeks
157-.21127 .13669 (157*2π)/2812 weeks
158-.11484 -.01176 (158*2π)/2812 weeks
159.11837 .01712 (159*2π)/2812 weeks
160-.02864 .10723 (160*2π)/2812 weeks
161-.03267 -.02246 (161*2π)/2812 weeks
162-.10536 -.10517 (162*2π)/2812 weeks
163-.20914 .09645 (163*2π)/2812 weeks
164.09403 .11953 (164*2π)/2812 weeks
165-.16997 .07335 (165*2π)/2812 weeks
166.04021 -.0624 (166*2π)/2812 weeks
167-.01543 -.13228 (167*2π)/2812 weeks
168.09721 .16539 (168*2π)/2812 weeks
169-.3076 -.0632 (169*2π)/2812 weeks
170.02504 .00217 (170*2π)/2812 weeks
171.07437 -.02048 (171*2π)/2812 weeks
172-.14916 .29993 (172*2π)/2812 weeks
173-.0998 .10514 (173*2π)/2812 weeks
174-.06008 -.10216 (174*2π)/2812 weeks
175.08683 .30383 (175*2π)/2812 weeks
176-.23935 .00748 (176*2π)/2812 weeks
177-.0369 .01483 (177*2π)/2812 weeks
178-.06495 -.06679 (178*2π)/2812 weeks
179.0957 -.35282 (179*2π)/2812 weeks
180-.07054 .21538 (180*2π)/2812 weeks
181-.12839 -.07906 (181*2π)/2812 weeks
182.11109 -.1517 (182*2π)/2812 weeks
183.16169 .21156 (183*2π)/2812 weeks
184-.03756 -.17116 (184*2π)/2812 weeks
185.00754 .19592 (185*2π)/2812 weeks
186.00413 -.19435 (186*2π)/2812 weeks
187.22232 .59778 (187*2π)/2812 weeks
188-.1931 -.21717 (188*2π)/2811 weeks
189.07932 -.02879 (189*2π)/2811 weeks
190.16821 .21871 (190*2π)/2811 weeks
191-.25898 -.27915 (191*2π)/2811 weeks
192.14762 .10161 (192*2π)/2811 weeks
193-.13884 -.06705 (193*2π)/2811 weeks
194-.08032 .04186 (194*2π)/2811 weeks
195.12419 .04855 (195*2π)/2811 weeks
196-.26722 .09139 (196*2π)/2811 weeks
197-.05734 -.06102 (197*2π)/2811 weeks
198.28988 .07723 (198*2π)/2811 weeks
199-.24201 .25571 (199*2π)/2811 weeks
200.27465 .1372 (200*2π)/2811 weeks
201-.09134 .02969 (201*2π)/2811 weeks
202-.17083 -.02975 (202*2π)/2811 weeks
203.17844 .1201 (203*2π)/2811 weeks
204-.26105 .23717 (204*2π)/2811 weeks
205.24273 -.15675 (205*2π)/2811 weeks
206.23638 -.08726 (206*2π)/2811 weeks
207-.10143 .34859 (207*2π)/2811 weeks
208.15379 -.20991 (208*2π)/2811 weeks
209.46912 .22839 (209*2π)/2811 weeks
210-.44229 .29753 (210*2π)/2811 weeks
211.07371 -.05571 (211*2π)/2811 weeks
212.15259 .02221 (212*2π)/2811 weeks
213-.15313 .15139 (213*2π)/2811 weeks
214.02663 -.04805 (214*2π)/2811 weeks
215-.1308 -.09854 (215*2π)/2811 weeks
216-.24742 -.0432 (216*2π)/2811 weeks
217-.03288 -.38232 (217*2π)/2811 weeks
218.25725 .37208 (218*2π)/2811 weeks
219-.19059 .17855 (219*2π)/2811 weeks
220-.02486 -.28862 (220*2π)/2811 weeks
221.15772 .27065 (221*2π)/2811 weeks
222-.14282 .3065 (222*2π)/2811 weeks
223.15892 -.11101 (223*2π)/2811 weeks
224.04426 .35025 (224*2π)/2811 weeks
225-.09927 .07119 (225*2π)/2811 weeks
226.05698 .3405 (226*2π)/2811 weeks
227-.01984 -.21247 (227*2π)/2811 weeks
228-.07993 -.00135 (228*2π)/2811 weeks
229.16778 .20068 (229*2π)/2811 weeks
230-.15629 -.04052 (230*2π)/2811 weeks
231.07883 .05493 (231*2π)/2811 weeks
232.30422 .41144 (232*2π)/2811 weeks
233.17574 .45001 (233*2π)/2811 weeks
234.02226 .16187 (234*2π)/2811 weeks
235.25165 -.18858 (235*2π)/2811 weeks
236.16134 .09899 (236*2π)/2811 weeks
237-.45433 -.12407 (237*2π)/2811 weeks
238.04052 .22965 (238*2π)/2811 weeks
239-.1391 -.10472 (239*2π)/2811 weeks
240.1833 .14356 (240*2π)/2811 weeks
241-.04742 -.07558 (241*2π)/2811 weeks
242-.31867 -.24837 (242*2π)/2811 weeks
243-.09376 -.48449 (243*2π)/2811 weeks
244-.19484 .54463 (244*2π)/2811 weeks
245-.42664 .31987 (245*2π)/2811 weeks
246.49799 -.06646 (246*2π)/2811 weeks
247-.16642 .69442 (247*2π)/2811 weeks
248-.27802 -.08864 (248*2π)/2811 weeks
249.39033 .30797 (249*2π)/2811 weeks
250-.39703 -.2298 (250*2π)/2811 weeks
251.25778 .22504 (251*2π)/2811 weeks
252-.77608 .28436 (252*2π)/2811 weeks
253.14491 -.03417 (253*2π)/2811 weeks
254-.17565 .37053 (254*2π)/2811 weeks
255.48721 .65082 (255*2π)/2811 weeks
256-1.05367 .73246 (256*2π)/2811 weeks
257.35294 -.06478 (257*2π)/2811 weeks
258.11208 .66389 (258*2π)/2811 weeks
259-.90478 -.72815 (259*2π)/2811 weeks
260.41724 .66588 (260*2π)/2811 weeks
261-.47658 -.76536 (261*2π)/2811 weeks
2621.23322 -.41061 (262*2π)/2811 weeks
263-.70379 .48445 (263*2π)/2811 weeks
264.59486 -1.19366 (264*2π)/2811 weeks
265-.045 1.00117 (265*2π)/2811 weeks
266-1.5149 -.15267 (266*2π)/2811 weeks
267.47634 -.46597 (267*2π)/2811 weeks
2681.24458 2.08223 (268*2π)/2811 weeks
269-2.00546 -1.84362 (269*2π)/2811 weeks
2702.23035 -.40401 (270*2π)/2811 weeks
271.80904 1.83915 (271*2π)/2811 weeks
272-.77283 -2.14986 (272*2π)/2811 weeks
273-.21322 2.65881 (273*2π)/2811 weeks
274.51789 -.94454 (274*2π)/2811 weeks
275.68741 1.34149 (275*2π)/2811 weeks
276-2.0918 .26547 (276*2π)/2811 weeks
277-2.63201 -2.48479 (277*2π)/2811 weeks
2781.50299 .93748 (278*2π)/2811 weeks
2795.79721 15.09472 (279*2π)/2811 weeks



Back to list of Stocks