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Fourier Analysis of VNET (21Vianet Group, Inc.)


VNET (21Vianet Group, Inc.) appears to have interesting cyclic behaviour every 23 weeks (.6784*sine), 19 weeks (.6208*cosine), and 18 weeks (.3583*cosine).

VNET (21Vianet Group, Inc.) has an average price of 15.4 (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 4/21/2011 to 1/9/2017 for VNET (21Vianet Group, Inc.), this program was able to calculate the following Fourier Series:
Sequence #Cosine Coefficients Sine Coefficients FrequenciesPeriod
015.3991   0 
1-4.79902 -4.63447 (1*2π)/300300 weeks
21.14297 1.32067 (2*2π)/300150 weeks
3-3.19899 .19673 (3*2π)/300100 weeks
41.3135 1.49483 (4*2π)/30075 weeks
5.11964 .34618 (5*2π)/30060 weeks
6.36109 1.2173 (6*2π)/30050 weeks
71.14764 .22609 (7*2π)/30043 weeks
8-.20755 .14981 (8*2π)/30038 weeks
9-.0275 .29646 (9*2π)/30033 weeks
10-.19393 -.15354 (10*2π)/30030 weeks
11-.17034 .24115 (11*2π)/30027 weeks
12.04942 -.09408 (12*2π)/30025 weeks
13-.26811 .67842 (13*2π)/30023 weeks
14.43894 .20772 (14*2π)/30021 weeks
15.11972 -.02378 (15*2π)/30020 weeks
16.62077 .02699 (16*2π)/30019 weeks
17-.35832 -.19122 (17*2π)/30018 weeks
18-.01147 .03279 (18*2π)/30017 weeks
19-.00907 -.15659 (19*2π)/30016 weeks
20.0255 .26337 (20*2π)/30015 weeks
21.19182 .08928 (21*2π)/30014 weeks
22.07815 .03275 (22*2π)/30014 weeks
23.26167 .1089 (23*2π)/30013 weeks
24.3505 .10744 (24*2π)/30013 weeks
25-.31361 -.05638 (25*2π)/30012 weeks
26.32593 .42653 (26*2π)/30012 weeks
27.09489 -.20951 (27*2π)/30011 weeks
28.20789 .41844 (28*2π)/30011 weeks
29.24472 .08875 (29*2π)/30010 weeks
30-.04218 .20465 (30*2π)/30010 weeks
31.00104 .32232 (31*2π)/30010 weeks
32.11186 .02359 (32*2π)/3009 weeks
33.0476 .1186 (33*2π)/3009 weeks
34.04606 -.01042 (34*2π)/3009 weeks
35-.18506 .27196 (35*2π)/3009 weeks
36.2136 .18507 (36*2π)/3008 weeks
37-.09146 -.02833 (37*2π)/3008 weeks
38.14268 .18661 (38*2π)/3008 weeks
39.1122 .05399 (39*2π)/3008 weeks
40.13374 .05211 (40*2π)/3008 weeks
41-.09265 -.05372 (41*2π)/3007 weeks
42-.11545 .07539 (42*2π)/3007 weeks
43.1423 .02832 (43*2π)/3007 weeks
44-.1111 .0175 (44*2π)/3007 weeks
45.10649 .19596 (45*2π)/3007 weeks
46.08109 .00672 (46*2π)/3007 weeks
47.11514 .06575 (47*2π)/3006 weeks
48.08891 -.12756 (48*2π)/3006 weeks
49-.01152 -.00323 (49*2π)/3006 weeks
50.07827 .03938 (50*2π)/3006 weeks
51.0186 .03459 (51*2π)/3006 weeks
52-.00659 .07887 (52*2π)/3006 weeks
53.13395 -.02642 (53*2π)/3006 weeks
54.16614 .08705 (54*2π)/3006 weeks
55.04322 -.10382 (55*2π)/3005 weeks
56.11892 -.00239 (56*2π)/3005 weeks
57.03485 -.04925 (57*2π)/3005 weeks
58.10112 .06014 (58*2π)/3005 weeks
59.08816 .079 (59*2π)/3005 weeks
60.1156 .03657 (60*2π)/3005 weeks
61.09518 .00991 (61*2π)/3005 weeks
62.02198 .0841 (62*2π)/3005 weeks
63.17653 .10927 (63*2π)/3005 weeks
64-.10295 .0493 (64*2π)/3005 weeks
65.28235 .02189 (65*2π)/3005 weeks
66-.16234 -.07875 (66*2π)/3005 weeks
67.16424 .0564 (67*2π)/3004 weeks
68-.00417 .08419 (68*2π)/3004 weeks
69.07451 .02939 (69*2π)/3004 weeks
70-.00034 .11835 (70*2π)/3004 weeks
71.11113 .06426 (71*2π)/3004 weeks
72.12653 .0144 (72*2π)/3004 weeks
73.0081 .0298 (73*2π)/3004 weeks
74.02037 .0966 (74*2π)/3004 weeks
75.06907 .0218 (75*2π)/3004 weeks
76-.05698 .06444 (76*2π)/3004 weeks
77.04744 .05512 (77*2π)/3004 weeks
78.01223 -.05608 (78*2π)/3004 weeks
79.07109 .06276 (79*2π)/3004 weeks
80.07615 .02815 (80*2π)/3004 weeks
81.09147 .04822 (81*2π)/3004 weeks
82-.01418 -.04463 (82*2π)/3004 weeks
83.05062 .0074 (83*2π)/3004 weeks
84-.07008 .045 (84*2π)/3004 weeks
85.02185 .06665 (85*2π)/3004 weeks
86.01082 .05457 (86*2π)/3003 weeks
87.04079 .0814 (87*2π)/3003 weeks
88.09378 .01643 (88*2π)/3003 weeks
89.10612 .05033 (89*2π)/3003 weeks
90.02252 .02362 (90*2π)/3003 weeks
91-.06542 .0774 (91*2π)/3003 weeks
92.04895 -.06714 (92*2π)/3003 weeks
93.06484 -.03405 (93*2π)/3003 weeks
94.10501 -.02552 (94*2π)/3003 weeks
95.0759 .04653 (95*2π)/3003 weeks
96.0619 .00684 (96*2π)/3003 weeks
97.09697 .00253 (97*2π)/3003 weeks
98.00286 -.0058 (98*2π)/3003 weeks
99.10626 .04743 (99*2π)/3003 weeks
100.0722 .00069 (100*2π)/3003 weeks
101.11058 .02263 (101*2π)/3003 weeks
102-.01613 .09065 (102*2π)/3003 weeks
103.10266 .04239 (103*2π)/3003 weeks
104.05888 .02342 (104*2π)/3003 weeks
105.03877 .00192 (105*2π)/3003 weeks
106.05668 .03327 (106*2π)/3003 weeks
107.02461 -.08999 (107*2π)/3003 weeks
108.05242 -.00108 (108*2π)/3003 weeks
109.05521 -.01375 (109*2π)/3003 weeks
110.04964 .05061 (110*2π)/3003 weeks
111.14901 .01454 (111*2π)/3003 weeks
112-.00187 .03481 (112*2π)/3003 weeks
113.09402 .06469 (113*2π)/3003 weeks
114.11148 -.08629 (114*2π)/3003 weeks
115-.06743 .05342 (115*2π)/3003 weeks
116.15587 .07451 (116*2π)/3003 weeks
117-.07156 .03498 (117*2π)/3003 weeks
118.12991 .0883 (118*2π)/3003 weeks
119.06868 .01343 (119*2π)/3003 weeks
120.0588 .03426 (120*2π)/3003 weeks
121.03867 .01138 (121*2π)/3002 weeks
122.00854 -.08006 (122*2π)/3002 weeks
123.03675 .06455 (123*2π)/3002 weeks
124.09634 -.04525 (124*2π)/3002 weeks
125-.07886 .02618 (125*2π)/3002 weeks
126.01473 .02789 (126*2π)/3002 weeks
127.03853 -.02016 (127*2π)/3002 weeks
128.03936 .03068 (128*2π)/3002 weeks
129.09345 -.00751 (129*2π)/3002 weeks
130.03971 .05474 (130*2π)/3002 weeks
131.13872 -.04034 (131*2π)/3002 weeks
132.02038 .03142 (132*2π)/3002 weeks
133.01802 .06908 (133*2π)/3002 weeks
134-.02875 -.0348 (134*2π)/3002 weeks
135-.00771 .14387 (135*2π)/3002 weeks
136.06645 -.06426 (136*2π)/3002 weeks
137.0197 .16836 (137*2π)/3002 weeks
138.17172 -.08948 (138*2π)/3002 weeks
139-.06135 .07083 (139*2π)/3002 weeks
140.06541 -.0811 (140*2π)/3002 weeks
141.02515 .03818 (141*2π)/3002 weeks
142.07183 .01546 (142*2π)/3002 weeks
143.03316 .01651 (143*2π)/3002 weeks
144.0471 .06111 (144*2π)/3002 weeks
145.09767 -.02943 (145*2π)/3002 weeks
146.02299 -.02566 (146*2π)/3002 weeks
147-.00867 .02399 (147*2π)/3002 weeks
148.08399 -.06728 (148*2π)/3002 weeks
149.00021 .00565 (149*2π)/3002 weeks
150.12367   (150*2π)/3002 weeks
151.00021 -.00565 (151*2π)/3002 weeks
152.08399 .06728 (152*2π)/3002 weeks
153-.00867 -.02399 (153*2π)/3002 weeks
154.02299 .02566 (154*2π)/3002 weeks
155.09767 .02943 (155*2π)/3002 weeks
156.0471 -.06111 (156*2π)/3002 weeks
157.03316 -.01651 (157*2π)/3002 weeks
158.07183 -.01546 (158*2π)/3002 weeks
159.02515 -.03818 (159*2π)/3002 weeks
160.06541 .0811 (160*2π)/3002 weeks
161-.06135 -.07083 (161*2π)/3002 weeks
162.17172 .08948 (162*2π)/3002 weeks
163.0197 -.16836 (163*2π)/3002 weeks
164.06645 .06426 (164*2π)/3002 weeks
165-.00771 -.14387 (165*2π)/3002 weeks
166-.02875 .0348 (166*2π)/3002 weeks
167.01802 -.06908 (167*2π)/3002 weeks
168.02038 -.03142 (168*2π)/3002 weeks
169.13872 .04034 (169*2π)/3002 weeks
170.03971 -.05474 (170*2π)/3002 weeks
171.09345 .00751 (171*2π)/3002 weeks
172.03936 -.03068 (172*2π)/3002 weeks
173.03853 .02016 (173*2π)/3002 weeks
174.01473 -.02789 (174*2π)/3002 weeks
175-.07886 -.02618 (175*2π)/3002 weeks
176.09634 .04525 (176*2π)/3002 weeks
177.03675 -.06455 (177*2π)/3002 weeks
178.00854 .08006 (178*2π)/3002 weeks
179.03867 -.01138 (179*2π)/3002 weeks
180.0588 -.03426 (180*2π)/3002 weeks
181.06868 -.01343 (181*2π)/3002 weeks
182.12991 -.0883 (182*2π)/3002 weeks
183-.07156 -.03498 (183*2π)/3002 weeks
184.15587 -.07451 (184*2π)/3002 weeks
185-.06743 -.05342 (185*2π)/3002 weeks
186.11148 .08629 (186*2π)/3002 weeks
187.09402 -.06469 (187*2π)/3002 weeks
188-.00187 -.03481 (188*2π)/3002 weeks
189.14901 -.01454 (189*2π)/3002 weeks
190.04964 -.05061 (190*2π)/3002 weeks
191.05521 .01375 (191*2π)/3002 weeks
192.05242 .00108 (192*2π)/3002 weeks
193.02461 .08999 (193*2π)/3002 weeks
194.05668 -.03327 (194*2π)/3002 weeks
195.03877 -.00192 (195*2π)/3002 weeks
196.05888 -.02342 (196*2π)/3002 weeks
197.10266 -.04239 (197*2π)/3002 weeks
198-.01613 -.09065 (198*2π)/3002 weeks
199.11058 -.02263 (199*2π)/3002 weeks
200.0722 -.00069 (200*2π)/3002 weeks
201.10626 -.04743 (201*2π)/3001 weeks
202.00286 .0058 (202*2π)/3001 weeks
203.09697 -.00253 (203*2π)/3001 weeks
204.0619 -.00684 (204*2π)/3001 weeks
205.0759 -.04653 (205*2π)/3001 weeks
206.10501 .02552 (206*2π)/3001 weeks
207.06484 .03405 (207*2π)/3001 weeks
208.04895 .06714 (208*2π)/3001 weeks
209-.06542 -.0774 (209*2π)/3001 weeks
210.02252 -.02362 (210*2π)/3001 weeks
211.10612 -.05033 (211*2π)/3001 weeks
212.09378 -.01643 (212*2π)/3001 weeks
213.04079 -.0814 (213*2π)/3001 weeks
214.01082 -.05457 (214*2π)/3001 weeks
215.02185 -.06665 (215*2π)/3001 weeks
216-.07008 -.045 (216*2π)/3001 weeks
217.05062 -.0074 (217*2π)/3001 weeks
218-.01418 .04463 (218*2π)/3001 weeks
219.09147 -.04822 (219*2π)/3001 weeks
220.07615 -.02815 (220*2π)/3001 weeks
221.07109 -.06276 (221*2π)/3001 weeks
222.01223 .05608 (222*2π)/3001 weeks
223.04744 -.05512 (223*2π)/3001 weeks
224-.05698 -.06444 (224*2π)/3001 weeks
225.06907 -.0218 (225*2π)/3001 weeks
226.02037 -.0966 (226*2π)/3001 weeks
227.0081 -.0298 (227*2π)/3001 weeks
228.12653 -.0144 (228*2π)/3001 weeks
229.11113 -.06426 (229*2π)/3001 weeks
230-.00034 -.11835 (230*2π)/3001 weeks
231.07451 -.02939 (231*2π)/3001 weeks
232-.00417 -.08419 (232*2π)/3001 weeks
233.16424 -.0564 (233*2π)/3001 weeks
234-.16234 .07875 (234*2π)/3001 weeks
235.28235 -.02189 (235*2π)/3001 weeks
236-.10295 -.0493 (236*2π)/3001 weeks
237.17653 -.10927 (237*2π)/3001 weeks
238.02198 -.0841 (238*2π)/3001 weeks
239.09518 -.00991 (239*2π)/3001 weeks
240.1156 -.03657 (240*2π)/3001 weeks
241.08816 -.079 (241*2π)/3001 weeks
242.10112 -.06014 (242*2π)/3001 weeks
243.03485 .04925 (243*2π)/3001 weeks
244.11892 .00239 (244*2π)/3001 weeks
245.04322 .10382 (245*2π)/3001 weeks
246.16614 -.08705 (246*2π)/3001 weeks
247.13395 .02642 (247*2π)/3001 weeks
248-.00659 -.07887 (248*2π)/3001 weeks
249.0186 -.03459 (249*2π)/3001 weeks
250.07827 -.03938 (250*2π)/3001 weeks
251-.01152 .00323 (251*2π)/3001 weeks
252.08891 .12756 (252*2π)/3001 weeks
253.11514 -.06575 (253*2π)/3001 weeks
254.08109 -.00672 (254*2π)/3001 weeks
255.10649 -.19596 (255*2π)/3001 weeks
256-.1111 -.0175 (256*2π)/3001 weeks
257.1423 -.02832 (257*2π)/3001 weeks
258-.11545 -.07539 (258*2π)/3001 weeks
259-.09265 .05372 (259*2π)/3001 weeks
260.13374 -.05211 (260*2π)/3001 weeks
261.1122 -.05399 (261*2π)/3001 weeks
262.14268 -.18661 (262*2π)/3001 weeks
263-.09146 .02833 (263*2π)/3001 weeks
264.2136 -.18507 (264*2π)/3001 weeks
265-.18506 -.27196 (265*2π)/3001 weeks
266.04606 .01042 (266*2π)/3001 weeks
267.0476 -.1186 (267*2π)/3001 weeks
268.11186 -.02359 (268*2π)/3001 weeks
269.00104 -.32232 (269*2π)/3001 weeks
270-.04218 -.20465 (270*2π)/3001 weeks
271.24472 -.08875 (271*2π)/3001 weeks
272.20789 -.41844 (272*2π)/3001 weeks
273.09489 .20951 (273*2π)/3001 weeks
274.32593 -.42653 (274*2π)/3001 weeks
275-.31361 .05638 (275*2π)/3001 weeks
276.3505 -.10744 (276*2π)/3001 weeks
277.26167 -.1089 (277*2π)/3001 weeks
278.07815 -.03275 (278*2π)/3001 weeks
279.19182 -.08928 (279*2π)/3001 weeks
280.0255 -.26337 (280*2π)/3001 weeks
281-.00907 .15659 (281*2π)/3001 weeks
282-.01147 -.03279 (282*2π)/3001 weeks
283-.35832 .19122 (283*2π)/3001 weeks
284.62077 -.02699 (284*2π)/3001 weeks
285.11972 .02378 (285*2π)/3001 weeks
286.43894 -.20772 (286*2π)/3001 weeks
287-.26811 -.67842 (287*2π)/3001 weeks
288.04942 .09408 (288*2π)/3001 weeks
289-.17034 -.24115 (289*2π)/3001 weeks
290-.19393 .15354 (290*2π)/3001 weeks
291-.0275 -.29646 (291*2π)/3001 weeks
292-.20755 -.14981 (292*2π)/3001 weeks
2931.14764 -.22609 (293*2π)/3001 weeks
294.36109 -1.2173 (294*2π)/3001 weeks
295.11964 -.34618 (295*2π)/3001 weeks
2961.3135 -1.49483 (296*2π)/3001 weeks
297-3.19899 -.19673 (297*2π)/3001 weeks
2981.14297 -1.32067 (298*2π)/3001 weeks

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