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Fourier Analysis of BDK (BLACK DECKER CP)


BDK (BLACK DECKER CP) appears to have interesting cyclic behaviour every 5 weeks (9.9629*sine), 5 weeks (9.5778*sine), and 5 weeks (9.3749*cosine).

BDK (BLACK DECKER CP) has an average price of 9.46 (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 1/2/2007 to 1/9/2017 for BDK (BLACK DECKER CP), this program was able to calculate the following Fourier Series:
Sequence #Cosine Coefficients Sine Coefficients FrequenciesPeriod
09.45972   0 
19.86653 12.26227 (1*2π)/347347 weeks
2-3.11491 12.55111 (2*2π)/347174 weeks
3-9.44132 2.80673 (3*2π)/347116 weeks
4-4.62072 -6.38429 (4*2π)/34787 weeks
54.50195 -6.35878 (5*2π)/34769 weeks
68.20464 1.11227 (6*2π)/34758 weeks
73.41788 7.4187 (7*2π)/34750 weeks
8-3.95385 5.98108 (8*2π)/34743 weeks
9-6.15955 -.75649 (9*2π)/34739 weeks
10-1.75068 -5.86558 (10*2π)/34735 weeks
114.93052 -4.95713 (11*2π)/34732 weeks
127.79727 1.20724 (12*2π)/34729 weeks
134.30527 7.05581 (13*2π)/34727 weeks
14-2.51743 7.55528 (14*2π)/34725 weeks
15-6.78366 2.25609 (15*2π)/34723 weeks
16-4.71359 -4.13873 (16*2π)/34722 weeks
171.71434 -5.64141 (17*2π)/34720 weeks
186.06892 -.91206 (18*2π)/34719 weeks
193.92522 5.0205 (19*2π)/34718 weeks
20-2.09313 5.80968 (20*2π)/34717 weeks
21-5.3516 1.04993 (21*2π)/34717 weeks
22-2.65188 -3.6918 (22*2π)/34716 weeks
232.45038 -3.17202 (23*2π)/34715 weeks
243.78101 1.50461 (24*2π)/34714 weeks
25.15139 4.4235 (25*2π)/34714 weeks
26-3.9238 2.45429 (26*2π)/34713 weeks
27-4.05912 -1.87604 (27*2π)/34713 weeks
28-.71962 -3.91584 (28*2π)/34712 weeks
292.19794 -2.3192 (29*2π)/34712 weeks
302.26597 .28356 (30*2π)/34712 weeks
31.70516 1.24856 (31*2π)/34711 weeks
32-.33427 .73929 (32*2π)/34711 weeks
33-.42354 .19588 (33*2π)/34711 weeks
34-.47093 .15945 (34*2π)/34710 weeks
35-.96719 -.09899 (35*2π)/34710 weeks
36-1.17537 -1.03173 (36*2π)/34710 weeks
37-.46477 -2.0774 (37*2π)/3479 weeks
381.0464 -2.30146 (38*2π)/3479 weeks
392.32777 -1.25334 (39*2π)/3479 weeks
402.45827 .54412 (40*2π)/3479 weeks
41.96357 1.91463 (41*2π)/3478 weeks
42-1.22049 1.35851 (42*2π)/3478 weeks
43-1.93224 -1.08626 (43*2π)/3478 weeks
44.16041 -3.15857 (44*2π)/3478 weeks
453.45144 -2.13596 (45*2π)/3478 weeks
464.17862 1.80731 (46*2π)/3478 weeks
47.58939 4.6461 (47*2π)/3477 weeks
48-4.11294 2.6033 (48*2π)/3477 weeks
49-4.58035 -2.98766 (49*2π)/3477 weeks
50.42769 -6.25228 (50*2π)/3477 weeks
515.92667 -3.27585 (51*2π)/3477 weeks
525.85828 3.17193 (52*2π)/3477 weeks
53-.03401 6.10834 (53*2π)/3477 weeks
54-5.46211 2.11317 (54*2π)/3476 weeks
55-4.42883 -4.77583 (55*2π)/3476 weeks
562.35466 -7.33929 (56*2π)/3476 weeks
578.23213 -2.65843 (57*2π)/3476 weeks
587.38685 4.97163 (58*2π)/3476 weeks
59.50741 8.40879 (59*2π)/3476 weeks
60-5.99941 4.56445 (60*2π)/3476 weeks
61-6.20905 -2.79806 (61*2π)/3476 weeks
62-.13045 -6.65736 (62*2π)/3476 weeks
636.17347 -3.25197 (63*2π)/3476 weeks
646.17714 4.07575 (64*2π)/3475 weeks
65-.60262 7.70932 (65*2π)/3475 weeks
66-7.47662 3.24925 (66*2π)/3475 weeks
67-6.93339 -5.47588 (67*2π)/3475 weeks
681.34873 -9.57784 (68*2π)/3475 weeks
699.37485 -4.25194 (69*2π)/3475 weeks
708.73103 5.60124 (70*2π)/3475 weeks
71-.22604 9.96293 (71*2π)/3475 weeks
72-8.38516 4.31716 (72*2π)/3475 weeks
73-7.45699 -5.42597 (73*2π)/3475 weeks
741.31783 -9.26842 (74*2π)/3475 weeks
758.69735 -3.64632 (75*2π)/3475 weeks
767.4386 5.16529 (76*2π)/3475 weeks
77-.46264 8.21066 (77*2π)/3475 weeks
78-6.61779 3.09403 (78*2π)/3474 weeks
79-5.23313 -4.36452 (79*2π)/3474 weeks
801.65053 -6.67455 (80*2π)/3474 weeks
816.87837 -1.97057 (81*2π)/3474 weeks
825.48427 4.81108 (82*2π)/3474 weeks
83-1.03666 7.17396 (83*2π)/3474 weeks
84-6.56897 2.9009 (84*2π)/3474 weeks
85-6.04031 -4.11531 (85*2π)/3474 weeks
86.09936 -7.58845 (86*2π)/3474 weeks
876.31804 -4.43132 (87*2π)/3474 weeks
887.07195 2.30259 (88*2π)/3474 weeks
892.0449 6.37454 (89*2π)/3474 weeks
90-3.67551 4.34847 (90*2π)/3474 weeks
91-4.70057 -1.14354 (91*2π)/3474 weeks
92-.78641 -4.32058 (92*2π)/3474 weeks
933.3253 -2.48695 (93*2π)/3474 weeks
943.39537 1.51508 (94*2π)/3474 weeks
95.11699 2.99357 (95*2π)/3474 weeks
96-2.27758 .71577 (96*2π)/3474 weeks
97-1.14314 -2.18443 (97*2π)/3474 weeks
981.82943 -2.31869 (98*2π)/3474 weeks
993.17588 .15592 (99*2π)/3474 weeks
1001.75874 2.2932 (100*2π)/3473 weeks
101-.42497 2.12594 (101*2π)/3473 weeks
102-1.11338 .5563 (102*2π)/3473 weeks
103-.30416 -.29846 (103*2π)/3473 weeks
104.27886 .15967 (104*2π)/3473 weeks
105-.32378 .58873 (105*2π)/3473 weeks
106-1.09786 -.21548 (106*2π)/3473 weeks
107-.52582 -1.65306 (107*2π)/3473 weeks
1081.37404 -1.92759 (108*2π)/3473 weeks
1092.77792 -.19505 (109*2π)/3473 weeks
1101.91443 2.1196 (110*2π)/3473 weeks
111-.69858 2.55057 (111*2π)/3473 weeks
112-2.43805 .32409 (112*2π)/3473 weeks
113-1.19376 -2.40699 (113*2π)/3473 weeks
1142.0445 -2.5169 (114*2π)/3473 weeks
1153.70955 .60368 (115*2π)/3473 weeks
1161.44342 3.77064 (116*2π)/3473 weeks
117-2.81314 3.14248 (117*2π)/3473 weeks
118-4.39102 -1.31119 (118*2π)/3473 weeks
119-.95267 -5.14135 (119*2π)/3473 weeks
1204.43144 -3.89685 (120*2π)/3473 weeks
1216.07316 1.73162 (121*2π)/3473 weeks
1221.77507 6.13173 (122*2π)/3473 weeks
123-4.41155 4.51834 (123*2π)/3473 weeks
124-6.15996 -1.84665 (124*2π)/3473 weeks
125-1.4205 -6.6882 (125*2π)/3473 weeks
1265.3016 -5.02535 (126*2π)/3473 weeks
1277.33036 1.72359 (127*2π)/3473 weeks
1282.50157 7.00594 (128*2π)/3473 weeks
129-4.6314 5.53633 (129*2π)/3473 weeks
130-7.08138 -1.4702 (130*2π)/3473 weeks
131-2.20656 -7.32523 (131*2π)/3473 weeks
1325.53885 -6.1223 (132*2π)/3473 weeks
1338.59912 1.33859 (133*2π)/3473 weeks
1343.68402 7.98179 (134*2π)/3473 weeks
135-4.67993 7.18872 (135*2π)/3473 weeks
136-8.29193 -.45394 (136*2π)/3473 weeks
137-3.47864 -7.39096 (137*2π)/3473 weeks
1384.86678 -6.55825 (138*2π)/3473 weeks
1398.05975 1.142 (139*2π)/3472 weeks
1402.74713 7.58634 (140*2π)/3472 weeks
141-5.52086 5.9146 (141*2π)/3472 weeks
142-8.03048 -2.24876 (142*2π)/3472 weeks
143-2.09573 -8.44585 (143*2π)/3472 weeks
1446.1748 -6.37017 (144*2π)/3472 weeks
1458.45707 1.66693 (145*2π)/3472 weeks
1462.80488 7.48376 (146*2π)/3472 weeks
147-4.77971 5.55126 (147*2π)/3472 weeks
148-6.79745 -1.69584 (148*2π)/3472 weeks
149-1.73919 -6.86848 (149*2π)/3472 weeks
1504.99986 -5.17445 (150*2π)/3472 weeks
1516.89026 1.22157 (151*2π)/3472 weeks
1522.52745 5.91879 (152*2π)/3472 weeks
153-3.52332 4.5927 (153*2π)/3472 weeks
154-5.39444 -1.12146 (154*2π)/3472 weeks
155-1.51275 -5.53932 (155*2π)/3472 weeks
1564.1786 -4.49673 (156*2π)/3472 weeks
1576.19034 .82442 (157*2π)/3472 weeks
1582.76073 5.20683 (158*2π)/3472 weeks
159-2.59588 4.53327 (159*2π)/3472 weeks
160-4.63992 -.22897 (160*2π)/3472 weeks
161-1.66917 -4.18625 (161*2π)/3472 weeks
1623.00953 -3.58057 (162*2π)/3472 weeks
1634.68808 .58086 (163*2π)/3472 weeks
1642.05437 3.87879 (164*2π)/3472 weeks
165-1.80149 3.26051 (165*2π)/3472 weeks
166-3.00922 -.0475 (166*2π)/3472 weeks
167-.95535 -2.35347 (167*2π)/3472 weeks
1681.61307 -1.68353 (168*2π)/3472 weeks
1692.02197 .53162 (169*2π)/3472 weeks
170.44627 1.58785 (170*2π)/3472 weeks
171-.84298 .69688 (171*2π)/3472 weeks
172-.49036 -.51655 (172*2π)/3472 weeks
173.51102 -.45157 (173*2π)/3472 weeks
174.51102 .45157 (174*2π)/3472 weeks
175-.49036 .51655 (175*2π)/3472 weeks
176-.84298 -.69688 (176*2π)/3472 weeks
177.44627 -1.58785 (177*2π)/3472 weeks
1782.02197 -.53162 (178*2π)/3472 weeks
1791.61307 1.68353 (179*2π)/3472 weeks
180-.95535 2.35347 (180*2π)/3472 weeks
181-3.00922 .0475 (181*2π)/3472 weeks
182-1.80149 -3.26051 (182*2π)/3472 weeks
1832.05437 -3.87879 (183*2π)/3472 weeks
1844.68808 -.58086 (184*2π)/3472 weeks
1853.00953 3.58057 (185*2π)/3472 weeks
186-1.66917 4.18625 (186*2π)/3472 weeks
187-4.63992 .22897 (187*2π)/3472 weeks
188-2.59588 -4.53327 (188*2π)/3472 weeks
1892.76073 -5.20683 (189*2π)/3472 weeks
1906.19034 -.82442 (190*2π)/3472 weeks
1914.1786 4.49673 (191*2π)/3472 weeks
192-1.51275 5.53932 (192*2π)/3472 weeks
193-5.39444 1.12146 (193*2π)/3472 weeks
194-3.52332 -4.5927 (194*2π)/3472 weeks
1952.52745 -5.91879 (195*2π)/3472 weeks
1966.89026 -1.22157 (196*2π)/3472 weeks
1974.99986 5.17445 (197*2π)/3472 weeks
198-1.73919 6.86848 (198*2π)/3472 weeks
199-6.79745 1.69584 (199*2π)/3472 weeks
200-4.77971 -5.55126 (200*2π)/3472 weeks
2012.80488 -7.48376 (201*2π)/3472 weeks
2028.45707 -1.66693 (202*2π)/3472 weeks
2036.1748 6.37017 (203*2π)/3472 weeks
204-2.09573 8.44585 (204*2π)/3472 weeks
205-8.03048 2.24876 (205*2π)/3472 weeks
206-5.52086 -5.9146 (206*2π)/3472 weeks
2072.74713 -7.58634 (207*2π)/3472 weeks
2088.05975 -1.142 (208*2π)/3472 weeks
2094.86678 6.55825 (209*2π)/3472 weeks
210-3.47864 7.39096 (210*2π)/3472 weeks
211-8.29193 .45394 (211*2π)/3472 weeks
212-4.67993 -7.18872 (212*2π)/3472 weeks
2133.68402 -7.98179 (213*2π)/3472 weeks
2148.59912 -1.33859 (214*2π)/3472 weeks
2155.53885 6.1223 (215*2π)/3472 weeks
216-2.20656 7.32523 (216*2π)/3472 weeks
217-7.08138 1.4702 (217*2π)/3472 weeks
218-4.6314 -5.53633 (218*2π)/3472 weeks
2192.50157 -7.00594 (219*2π)/3472 weeks
2207.33036 -1.72359 (220*2π)/3472 weeks
2215.3016 5.02535 (221*2π)/3472 weeks
222-1.4205 6.6882 (222*2π)/3472 weeks
223-6.15996 1.84665 (223*2π)/3472 weeks
224-4.41155 -4.51834 (224*2π)/3472 weeks
2251.77507 -6.13173 (225*2π)/3472 weeks
2266.07316 -1.73162 (226*2π)/3472 weeks
2274.43144 3.89685 (227*2π)/3472 weeks
228-.95267 5.14135 (228*2π)/3472 weeks
229-4.39102 1.31119 (229*2π)/3472 weeks
230-2.81314 -3.14248 (230*2π)/3472 weeks
2311.44342 -3.77064 (231*2π)/3472 weeks
2323.70955 -.60368 (232*2π)/3471 weeks
2332.0445 2.5169 (233*2π)/3471 weeks
234-1.19376 2.40699 (234*2π)/3471 weeks
235-2.43805 -.32409 (235*2π)/3471 weeks
236-.69858 -2.55057 (236*2π)/3471 weeks
2371.91443 -2.1196 (237*2π)/3471 weeks
2382.77792 .19505 (238*2π)/3471 weeks
2391.37404 1.92759 (239*2π)/3471 weeks
240-.52582 1.65306 (240*2π)/3471 weeks
241-1.09786 .21548 (241*2π)/3471 weeks
242-.32378 -.58873 (242*2π)/3471 weeks
243.27886 -.15967 (243*2π)/3471 weeks
244-.30416 .29846 (244*2π)/3471 weeks
245-1.11338 -.5563 (245*2π)/3471 weeks
246-.42497 -2.12594 (246*2π)/3471 weeks
2471.75874 -2.2932 (247*2π)/3471 weeks
2483.17588 -.15592 (248*2π)/3471 weeks
2491.82943 2.31869 (249*2π)/3471 weeks
250-1.14314 2.18443 (250*2π)/3471 weeks
251-2.27758 -.71577 (251*2π)/3471 weeks
252.11699 -2.99357 (252*2π)/3471 weeks
2533.39537 -1.51508 (253*2π)/3471 weeks
2543.3253 2.48695 (254*2π)/3471 weeks
255-.78641 4.32058 (255*2π)/3471 weeks
256-4.70057 1.14354 (256*2π)/3471 weeks
257-3.67551 -4.34847 (257*2π)/3471 weeks
2582.0449 -6.37454 (258*2π)/3471 weeks
2597.07195 -2.30259 (259*2π)/3471 weeks
2606.31804 4.43132 (260*2π)/3471 weeks
261.09936 7.58845 (261*2π)/3471 weeks
262-6.04031 4.11531 (262*2π)/3471 weeks
263-6.56897 -2.9009 (263*2π)/3471 weeks
264-1.03666 -7.17396 (264*2π)/3471 weeks
2655.48427 -4.81108 (265*2π)/3471 weeks
2666.87837 1.97057 (266*2π)/3471 weeks
2671.65053 6.67455 (267*2π)/3471 weeks
268-5.23313 4.36452 (268*2π)/3471 weeks
269-6.61779 -3.09403 (269*2π)/3471 weeks
270-.46264 -8.21066 (270*2π)/3471 weeks
2717.4386 -5.16529 (271*2π)/3471 weeks
2728.69735 3.64632 (272*2π)/3471 weeks
2731.31783 9.26842 (273*2π)/3471 weeks
274-7.45699 5.42597 (274*2π)/3471 weeks
275-8.38516 -4.31716 (275*2π)/3471 weeks
276-.22604 -9.96293 (276*2π)/3471 weeks
2778.73103 -5.60124 (277*2π)/3471 weeks
2789.37485 4.25194 (278*2π)/3471 weeks
2791.34873 9.57784 (279*2π)/3471 weeks
280-6.93339 5.47588 (280*2π)/3471 weeks
281-7.47662 -3.24925 (281*2π)/3471 weeks
282-.60262 -7.70932 (282*2π)/3471 weeks
2836.17714 -4.07575 (283*2π)/3471 weeks
2846.17347 3.25197 (284*2π)/3471 weeks
285-.13045 6.65736 (285*2π)/3471 weeks
286-6.20905 2.79806 (286*2π)/3471 weeks
287-5.99941 -4.56445 (287*2π)/3471 weeks
288.50741 -8.40879 (288*2π)/3471 weeks
2897.38685 -4.97163 (289*2π)/3471 weeks
2908.23213 2.65843 (290*2π)/3471 weeks
2912.35466 7.33929 (291*2π)/3471 weeks
292-4.42883 4.77583 (292*2π)/3471 weeks
293-5.46211 -2.11317 (293*2π)/3471 weeks
294-.03401 -6.10834 (294*2π)/3471 weeks
2955.85828 -3.17193 (295*2π)/3471 weeks
2965.92667 3.27585 (296*2π)/3471 weeks
297.42769 6.25228 (297*2π)/3471 weeks
298-4.58035 2.98766 (298*2π)/3471 weeks
299-4.11294 -2.6033 (299*2π)/3471 weeks
300.58939 -4.6461 (300*2π)/3471 weeks
3014.17862 -1.80731 (301*2π)/3471 weeks
3023.45144 2.13596 (302*2π)/3471 weeks
303.16041 3.15857 (303*2π)/3471 weeks
304-1.93224 1.08626 (304*2π)/3471 weeks
305-1.22049 -1.35851 (305*2π)/3471 weeks
306.96357 -1.91463 (306*2π)/3471 weeks
3072.45827 -.54412 (307*2π)/3471 weeks
3082.32777 1.25334 (308*2π)/3471 weeks
3091.0464 2.30146 (309*2π)/3471 weeks
310-.46477 2.0774 (310*2π)/3471 weeks
311-1.17537 1.03173 (311*2π)/3471 weeks
312-.96719 .09899 (312*2π)/3471 weeks
313-.47093 -.15945 (313*2π)/3471 weeks
314-.42354 -.19588 (314*2π)/3471 weeks
315-.33427 -.73929 (315*2π)/3471 weeks
316.70516 -1.24856 (316*2π)/3471 weeks
3172.26597 -.28356 (317*2π)/3471 weeks
3182.19794 2.3192 (318*2π)/3471 weeks
319-.71962 3.91584 (319*2π)/3471 weeks
320-4.05912 1.87604 (320*2π)/3471 weeks
321-3.9238 -2.45429 (321*2π)/3471 weeks
322.15139 -4.4235 (322*2π)/3471 weeks
3233.78101 -1.50461 (323*2π)/3471 weeks
3242.45038 3.17202 (324*2π)/3471 weeks
325-2.65188 3.6918 (325*2π)/3471 weeks
326-5.3516 -1.04993 (326*2π)/3471 weeks
327-2.09313 -5.80968 (327*2π)/3471 weeks
3283.92522 -5.0205 (328*2π)/3471 weeks
3296.06892 .91206 (329*2π)/3471 weeks
3301.71434 5.64141 (330*2π)/3471 weeks
331-4.71359 4.13873 (331*2π)/3471 weeks
332-6.78366 -2.25609 (332*2π)/3471 weeks
333-2.51743 -7.55528 (333*2π)/3471 weeks
3344.30527 -7.05581 (334*2π)/3471 weeks
3357.79727 -1.20724 (335*2π)/3471 weeks
3364.93052 4.95713 (336*2π)/3471 weeks
337-1.75068 5.86558 (337*2π)/3471 weeks
338-6.15955 .75649 (338*2π)/3471 weeks
339-3.95385 -5.98108 (339*2π)/3471 weeks
3403.41788 -7.4187 (340*2π)/3471 weeks
3418.20464 -1.11227 (341*2π)/3471 weeks
3424.50195 6.35878 (342*2π)/3471 weeks
343-4.62072 6.38429 (343*2π)/3471 weeks
344-9.44132 -2.80673 (344*2π)/3471 weeks
345-3.11491 -12.55111 (345*2π)/3471 weeks

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