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Fourier Analysis of ALDR (Alder BioPharmaceuticals, Inc.)


ALDR (Alder BioPharmaceuticals, Inc.) appears to have interesting cyclic behaviour every 8 weeks (1.1485*sine), 9 weeks (1.1346*cosine), and 13 weeks (1.0693*cosine).

ALDR (Alder BioPharmaceuticals, Inc.) has an average price of 26.91 (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 5/8/2014 to 3/20/2017 for ALDR (Alder BioPharmaceuticals, Inc.), this program was able to calculate the following Fourier Series:
Sequence #Cosine Coefficients Sine Coefficients FrequenciesPeriod
026.91017   0 
1-8.83703 -.21292 (1*2π)/151151 weeks
2.17973 -7.08316 (2*2π)/15176 weeks
3-1.18822 1.95625 (3*2π)/15150 weeks
4.30286 -.35388 (4*2π)/15138 weeks
51.92935 -.0474 (5*2π)/15130 weeks
6-1.7114 2.05285 (6*2π)/15125 weeks
7-.06536 -2.84791 (7*2π)/15122 weeks
8-.83822 -.2444 (8*2π)/15119 weeks
9.15175 .04703 (9*2π)/15117 weeks
10-.23866 -.9762 (10*2π)/15115 weeks
11-.3513 .1402 (11*2π)/15114 weeks
12-1.06931 -.79735 (12*2π)/15113 weeks
13.12635 -.352 (13*2π)/15112 weeks
14-.60476 .07414 (14*2π)/15111 weeks
15-.18141 -.07247 (15*2π)/15110 weeks
16-1.13461 -.725 (16*2π)/1519 weeks
17.59956 -.53988 (17*2π)/1519 weeks
18-.2006 -.3711 (18*2π)/1518 weeks
19.14733 -1.14847 (19*2π)/1518 weeks
20-.72433 .65801 (20*2π)/1518 weeks
21-.12526 -.15878 (21*2π)/1517 weeks
22.02949 -.39273 (22*2π)/1517 weeks
23.13361 -.33468 (23*2π)/1517 weeks
24.43168 -.0291 (24*2π)/1516 weeks
25.02682 -.62452 (25*2π)/1516 weeks
26-.18029 -.00639 (26*2π)/1516 weeks
27-.29299 -.1688 (27*2π)/1516 weeks
28-.06351 -.53606 (28*2π)/1515 weeks
29.15386 -.02964 (29*2π)/1515 weeks
30.08009 .17036 (30*2π)/1515 weeks
31-.09494 .02 (31*2π)/1515 weeks
32.10209 -.13576 (32*2π)/1515 weeks
33-.25539 .00288 (33*2π)/1515 weeks
34-.228 -.17065 (34*2π)/1514 weeks
35-.06839 -.06609 (35*2π)/1514 weeks
36-.50914 -.11502 (36*2π)/1514 weeks
37.12914 -.11425 (37*2π)/1514 weeks
38.05646 .6982 (38*2π)/1514 weeks
39.18021 -.00193 (39*2π)/1514 weeks
40.22341 -.143 (40*2π)/1514 weeks
41.01065 .10778 (41*2π)/1514 weeks
42-.554 -.30934 (42*2π)/1514 weeks
43.17803 .38171 (43*2π)/1514 weeks
44.05379 .03598 (44*2π)/1513 weeks
45-.21209 .03771 (45*2π)/1513 weeks
46-.09222 -.00969 (46*2π)/1513 weeks
47.07799 -.07185 (47*2π)/1513 weeks
48-.32913 -.26872 (48*2π)/1513 weeks
49-.06398 -.1133 (49*2π)/1513 weeks
50-.16107 .02221 (50*2π)/1513 weeks
51-.25495 -.01376 (51*2π)/1513 weeks
52.06177 -.06192 (52*2π)/1513 weeks
53-.10119 -.21768 (53*2π)/1513 weeks
54-.01761 -.13926 (54*2π)/1513 weeks
55-.12753 -.3269 (55*2π)/1513 weeks
56-.10855 -.12166 (56*2π)/1513 weeks
57-.41521 -.04067 (57*2π)/1513 weeks
58.14402 .25672 (58*2π)/1513 weeks
59-.20995 -.02557 (59*2π)/1513 weeks
60.17172 .05976 (60*2π)/1513 weeks
61.05539 -.09459 (61*2π)/1512 weeks
62-.21515 -.22612 (62*2π)/1512 weeks
63-.13256 .03033 (63*2π)/1512 weeks
64.08827 .18004 (64*2π)/1512 weeks
65-.19927 -.08725 (65*2π)/1512 weeks
66.15378 -.014 (66*2π)/1512 weeks
67-.04392 .04211 (67*2π)/1512 weeks
68.11684 -.09042 (68*2π)/1512 weeks
69-.30266 .10708 (69*2π)/1512 weeks
70.08595 -.17741 (70*2π)/1512 weeks
71-.27443 .1253 (71*2π)/1512 weeks
72-.19827 .03049 (72*2π)/1512 weeks
73.01457 .1099 (73*2π)/1512 weeks
74-.1698 -.10486 (74*2π)/1512 weeks
75.03994 .04015 (75*2π)/1512 weeks
76.03994 -.04015 (76*2π)/1512 weeks
77-.1698 .10486 (77*2π)/1512 weeks
78.01457 -.1099 (78*2π)/1512 weeks
79-.19827 -.03049 (79*2π)/1512 weeks
80-.27443 -.1253 (80*2π)/1512 weeks
81.08595 .17741 (81*2π)/1512 weeks
82-.30266 -.10708 (82*2π)/1512 weeks
83.11684 .09042 (83*2π)/1512 weeks
84-.04392 -.04211 (84*2π)/1512 weeks
85.15378 .014 (85*2π)/1512 weeks
86-.19927 .08725 (86*2π)/1512 weeks
87.08827 -.18004 (87*2π)/1512 weeks
88-.13256 -.03033 (88*2π)/1512 weeks
89-.21515 .22612 (89*2π)/1512 weeks
90.05539 .09459 (90*2π)/1512 weeks
91.17172 -.05976 (91*2π)/1512 weeks
92-.20995 .02557 (92*2π)/1512 weeks
93.14402 -.25672 (93*2π)/1512 weeks
94-.41521 .04067 (94*2π)/1512 weeks
95-.10855 .12166 (95*2π)/1512 weeks
96-.12753 .3269 (96*2π)/1512 weeks
97-.01761 .13926 (97*2π)/1512 weeks
98-.10119 .21768 (98*2π)/1512 weeks
99.06177 .06192 (99*2π)/1512 weeks
100-.25495 .01376 (100*2π)/1512 weeks
101-.16107 -.02221 (101*2π)/1511 weeks
102-.06398 .1133 (102*2π)/1511 weeks
103-.32913 .26872 (103*2π)/1511 weeks
104.07799 .07185 (104*2π)/1511 weeks
105-.09222 .00969 (105*2π)/1511 weeks
106-.21209 -.03771 (106*2π)/1511 weeks
107.05379 -.03598 (107*2π)/1511 weeks
108.17803 -.38171 (108*2π)/1511 weeks
109-.554 .30934 (109*2π)/1511 weeks
110.01065 -.10778 (110*2π)/1511 weeks
111.22341 .143 (111*2π)/1511 weeks
112.18021 .00193 (112*2π)/1511 weeks
113.05646 -.6982 (113*2π)/1511 weeks
114.12914 .11425 (114*2π)/1511 weeks
115-.50914 .11502 (115*2π)/1511 weeks
116-.06839 .06609 (116*2π)/1511 weeks
117-.228 .17065 (117*2π)/1511 weeks
118-.25539 -.00288 (118*2π)/1511 weeks
119.10209 .13576 (119*2π)/1511 weeks
120-.09494 -.02 (120*2π)/1511 weeks
121.08009 -.17036 (121*2π)/1511 weeks
122.15386 .02964 (122*2π)/1511 weeks
123-.06351 .53606 (123*2π)/1511 weeks
124-.29299 .1688 (124*2π)/1511 weeks
125-.18029 .00639 (125*2π)/1511 weeks
126.02682 .62452 (126*2π)/1511 weeks
127.43168 .0291 (127*2π)/1511 weeks
128.13361 .33468 (128*2π)/1511 weeks
129.02949 .39273 (129*2π)/1511 weeks
130-.12526 .15878 (130*2π)/1511 weeks
131-.72433 -.65801 (131*2π)/1511 weeks
132.14733 1.14847 (132*2π)/1511 weeks
133-.2006 .3711 (133*2π)/1511 weeks
134.59956 .53988 (134*2π)/1511 weeks
135-1.13461 .725 (135*2π)/1511 weeks
136-.18141 .07247 (136*2π)/1511 weeks
137-.60476 -.07414 (137*2π)/1511 weeks
138.12635 .352 (138*2π)/1511 weeks
139-1.06931 .79735 (139*2π)/1511 weeks
140-.3513 -.1402 (140*2π)/1511 weeks
141-.23866 .9762 (141*2π)/1511 weeks
142.15175 -.04703 (142*2π)/1511 weeks
143-.83822 .2444 (143*2π)/1511 weeks
144-.06536 2.84791 (144*2π)/1511 weeks
145-1.7114 -2.05285 (145*2π)/1511 weeks
1461.92935 .0474 (146*2π)/1511 weeks
147.30286 .35388 (147*2π)/1511 weeks
148-1.18822 -1.95625 (148*2π)/1511 weeks
149.17973 7.08316 (149*2π)/1511 weeks

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