"date"	"spx"	"ibm"
"2006-01-03"	1.62969571504821	-0.172754238423067
"2006-01-04"	0.366603354426509	-0.135945148539829
"2006-01-05"	0.00157051206555181	0.67788513732614
"2006-01-06"	0.935554103254521	2.91735269110394
"2006-01-09"	0.364963908754934	-1.44198605283066
"2006-01-10"	-0.0356611266493445	0.410678195265302
"2006-01-11"	0.347541054260692	0.108427213803175
"2006-01-12"	-0.629400893391807	-0.712950878055008
"2006-01-13"	0.120450577377795	-0.474078563713309
"2006-01-17"	-0.356331874250237	-0.207355078259663
"2006-01-18"	-0.39828866846312	0.959968487505147
"2006-01-19"	0.554826489507221	-0.850138712598891
"2006-01-20"	-1.8496284270765	-2.10767646799486
"2006-01-23"	0.1845318524202	0.062262625758347
"2006-01-24"	0.240251747535325	-0.687030370846031
"2006-01-25"	-0.172227224445543	0.0751785525947568
"2006-01-26"	0.720898450404128	-0.238259564715104
"2006-01-27"	0.773400269579394	0.375940292390542
"2006-01-30"	0.114445438761823	0.747667034302069
"2006-01-31"	-0.398399136067962	-0.41052492810767
"2006-02-01"	0.185753251409526	0.782272568120845
"2006-02-02"	-0.91020093392773	-0.869570696755328
"2006-02-03"	-0.537306953307048	-1.55919165226184
"2006-02-06"	0.0782902710952271	-0.571902175153749
"2006-02-07"	-0.812767391884694	0.419714447619057
"2006-02-08"	0.862556579176221	1.43651663803306
"2006-02-09"	-0.147859426091212	-0.501694266888375
"2006-02-10"	0.253677870484381	1.15015644693486
"2006-02-13"	-0.326501861291018	-1.09987360489487
"2006-02-14"	0.998278847617673	0.813572295246345
"2006-02-15"	0.349829942023039	-0.299625692323424
"2006-02-16"	0.730140475212959	0.074990629685967
"2006-02-17"	-0.166109126845448	-0.250187771232380
"2006-02-21"	-0.327592335826843	-0.263372573385556
"2006-02-22"	0.748537874088129	1.04935378886886
"2006-02-23"	-0.378227588694546	-1.41420290718575
"2006-02-24"	0.127268934849489	-0.126119325583396
"2006-02-27"	0.363066722290206	0.654090382323247
"2006-02-28"	-1.04553574396311	-0.477567829866299
"2006-03-01"	0.822742694540057	-0.4292393915307
"2006-03-02"	-0.16276676021576	0.0505944862803531
"2006-03-03"	-0.148270655993876	0.0252876471192209
"2006-03-06"	-0.699284468279249	0.0505561183669734
"2006-03-07"	-0.186364153009855	0.365769468776289
"2006-03-08"	0.202791386270462	1.05198214984448
"2006-03-09"	-0.489278429329243	-0.149607308792366
"2006-03-10"	0.719757184735048	0.671477280485266
"2006-03-13"	0.211260821883741	0.445159632127012
"2006-03-14"	1.03424754322692	1.15310404264015
"2006-03-15"	0.426072553816148	0.595855110061816
"2006-03-16"	0.177123515166677	-0.60805246325133
"2006-03-17"	0.146981171535820	0.511012183923487
"2006-03-20"	-0.166135250838639	0.339229789814155
"2006-03-21"	-0.60331196596044	0.277794731455927
"2006-03-22"	0.600246972779761	0.756987694090228
"2006-03-23"	-0.258563620618713	-1.49544513860054
"2006-03-24"	0.0982868981305174	0.194221959572971
"2006-03-27"	-0.102896467597535	-0.327968711834536
"2006-03-28"	-0.645899487712409	-0.793994276930121
"2006-03-29"	0.74419091432425	0.842650159169711
"2006-03-30"	-0.202832034012612	0.0850908700219755
"2006-03-31"	-0.414624965895172	-0.87869737936117
"2006-04-03"	0.226792451066338	0.720613805368409
"2006-04-04"	0.623720212013179	0.461389842304083
"2006-04-05"	0.430183777764626	0.856407140069226
"2006-04-06"	-0.192322428203173	-0.421255963870237
"2006-04-07"	-1.03973231184753	-1.60489766874177
"2006-04-10"	0.0864157577348479	-0.454518318255737
"2006-04-11"	-0.778111614478938	-1.15164420615592
"2006-04-12"	0.120402859159796	-0.511957164897847
"2006-04-13"	0.077602400256449	1.5157452573753
"2006-04-17"	-0.294432033091852	-0.42011676767304
"2006-04-18"	1.69331480455615	2.02249953306550
"2006-04-19"	0.202505790945828	-1.75045781712768
"2006-04-20"	0.116731976068873	0.197384717428584
"2006-04-21"	-0.0137261032571168	-0.444664764303404
"2006-04-24"	-0.242041204066012	0.555522692759602
"2006-04-25"	-0.488151629352629	0.674807787363374
"2006-04-26"	0.281533661206446	0.815933406911107
"2006-04-27"	0.329620623245219	0.640756589911451
"2006-04-28"	0.0679303777939566	-1.86102798566683
"2006-05-01"	-0.414405364060766	-0.135143456897513
"2006-05-02"	0.612589755596993	0.233315019574043
"2006-05-03"	-0.388352965646988	0.342843485078781
"2006-05-04"	0.315222920414193	-0.33057881345
"2006-05-05"	1.02426587566278	1.02489916168276
"2006-05-08"	-0.0830057170680298	-0.109309539031255
"2006-05-09"	0.0362291497659761	0.412321709547125
"2006-05-10"	-0.172961421371642	-0.400170303006941
"2006-05-11"	-1.28807267848590	-0.523848429466689
"2006-05-12"	-1.13047762472691	-0.085537977965533
"2006-05-15"	0.252152322142063	0.597235000892038
"2006-05-16"	-0.187119726133478	-0.878804630513308
"2006-05-17"	-1.69844857124160	-1.08468954520742
"2006-05-18"	-0.672163912629475	-0.758851685344997
"2006-05-19"	0.412838092875223	-0.475654921079549
"2006-05-22"	-0.392234894552068	-0.326756605925205
"2006-05-23"	-0.435948519630358	-0.226843197462845
"2006-05-24"	0.158241092201283	-0.0631034286100451
"2006-05-25"	1.13058937991131	0.440890050958309
"2006-05-26"	0.570302050221283	0.763792606908886
"2006-05-30"	-1.59765290823302	-0.738657505607776
"2006-05-31"	0.807922306399966	-0.314643768487066
"2006-06-01"	1.22233308406710	0.978432291311382
"2006-06-02"	0.195032560762876	-1.45859495253742
"2006-06-05"	-1.79600756318434	-0.584351256292948
"2006-06-06"	-0.113872712115892	0.887880008359865
"2006-06-07"	-0.611113012985065	-0.773281409200699
"2006-06-08"	0.141602518410444	-2.70879453871675
"2006-06-09"	-0.448565226304787	0.768483104675521
"2006-06-12"	-1.19371311510541	-0.781559273376775
"2006-06-13"	-1.11738453982664	-0.117762525876319
"2006-06-14"	0.517580514222615	1.00306970117998
"2006-06-15"	2.10127592870535	1.08290345332360
"2006-06-16"	-0.368465544285446	-0.772304006003832
"2006-06-19"	-0.915858019352456	-0.362459943749904
"2006-06-20"	-0.000806370325623362	0.414132855376348
"2006-06-21"	0.969385520089983	0.399562302544432
"2006-06-22"	-0.528466279142137	-1.43812804417642
"2006-06-23"	-0.0883498712141773	-0.104452287861978
"2006-06-26"	0.485760816666136	0.052239781780905
"2006-06-27"	-0.912544087164946	-0.668110168436709
"2006-06-28"	0.547241024473966	-0.092050765918561
"2006-06-29"	2.13357730212289	1.33300457869252
"2006-06-30"	-0.209982499975325	-0.991528018872678
"2006-07-03"	0.783413602903327	1.54819979104586
"2006-07-05"	-0.727532510115037	-0.323269176588159
"2006-07-06"	0.249117021237755	0.413597591014359
"2006-07-07"	-0.677285267886862	-2.16436088808845
"2006-07-10"	0.14687189254321	0.328969307796534
"2006-07-11"	0.400824233270125	-0.263088812627643
"2006-07-12"	-1.09284659955664	-1.29923609361313
"2006-07-13"	-1.30515911736877	-1.65493181643441
"2006-07-14"	-0.490624269397255	-0.913123891448375
"2006-07-17"	-0.138422891827172	0.177826460922503
"2006-07-18"	0.191798063935344	0.762427110562047
"2006-07-19"	1.83850059779695	2.3987749835686
"2006-07-20"	-0.851360694831982	-0.770972847170359
"2006-07-21"	-0.710208575263138	-0.830769885995863
"2006-07-24"	1.64884592675074	1.49575438196194
"2006-07-25"	0.630093910452434	-0.132643606130678
"2006-07-26"	-0.037835793111185	-0.0796706986770701
"2006-07-27"	-0.410807972276039	0.424178790836294
"2006-07-28"	1.20784393551725	1.06572944739876
"2006-07-31"	-0.147933073577189	0.574189232512978
"2006-08-01"	-0.45062449172546	-1.65314706805191
"2006-08-02"	0.50935428547092	0.237843663919612
"2006-08-03"	0.223640267118874	0.0131969647172880
"2006-08-04"	-0.0711040297495913	-0.555777532234725
"2006-08-07"	-0.281003499806864	-0.505521896034189
"2006-08-08"	-0.336834158884791	0.14659828040271
"2006-08-09"	-0.435874783164358	0.0798722087190562
"2006-08-10"	0.4618254220496	0.464654005599563
"2006-08-11"	-0.399441156654223	-0.344965182214896
"2006-08-14"	0.115978631907954	1.56922848219629
"2006-08-15"	1.36035209374441	0.5219899624751
"2006-08-16"	0.763270798660365	2.56984461922727
"2006-08-17"	0.158123531255239	0.354565396148843
"2006-08-18"	0.370801031060353	0.667719016269075
"2006-08-21"	-0.367718179422294	-0.781549421275152
"2006-08-22"	0.100140976038521	-0.418490243635183
"2006-08-23"	-0.449879414991816	-0.343708568270706
"2006-08-24"	0.237152734697421	0.888669045027157
"2006-08-25"	-0.0748702348618124	0.629963025771474
"2006-08-28"	0.515236788894846	0.551103599225566
"2006-08-29"	0.191860568588975	1.33997042138736
"2006-08-30"	0.083536111232263	-0.222085223914537
"2006-08-31"	-0.118810832659300	-0.309272220287493
"2006-09-01"	0.54994153508483	0.543681062432011
"2006-09-05"	0.170714833439778	-0.692472162418056
"2006-09-06"	-0.994073638177717	-0.709796890733116
"2006-09-07"	-0.481059256034921	-1.10581674718109
"2006-09-08"	0.377949804691102	1.57957402276425
"2006-09-11"	0.0477205738603992	0.3352582763962
"2006-09-12"	1.03042396253361	1.64744320994377
"2006-09-13"	0.385395012322931	-0.0853918929594855
"2006-09-14"	-0.135896921478196	0.316802994340915
"2006-09-15"	0.256455143326484	0.570147720244929
"2006-09-18"	0.115114900399238	-0.850345259964502
"2006-09-19"	-0.268301901879209	-0.44015231837875
"2006-09-20"	0.570604162057009	1.86944021577853
"2006-09-21"	-0.541010168662837	-2.18853719738901
"2006-09-22"	-0.246884632828337	-0.492915354140244
"2006-09-25"	0.8776536278301	0.958945140439393
"2006-09-26"	0.749612932109489	0.609906745476607
"2006-09-27"	0.0179577544310305	-0.499848648155155
"2006-09-28"	0.17118491773207	-0.122294255183153
"2006-09-29"	-0.226565021226488	-0.0612032579236477
"2006-10-02"	-0.339686210916224	-0.0734933889033229
"2006-10-03"	0.209347161167983	-0.269938814220083
"2006-10-04"	1.19883267611236	1.75378992712218
"2006-10-05"	0.223420797082241	-0.217549034313880
"2006-10-06"	-0.268609497713079	0.26582905939172
"2006-10-09"	0.0792519252665436	1.03242213553898
"2006-10-10"	0.204136043197334	0.226662787170095
"2006-10-11"	-0.256716757654996	0
"2006-10-12"	0.949586533658131	0.605882459336726
"2006-10-13"	0.204511790388917	1.60962178125077
"2006-10-16"	0.251583498942143	0.731583127063029
"2006-10-17"	-0.366615731638653	0.277296538170724
"2006-10-18"	0.128212190393295	3.24659614998106
"2006-10-19"	0.084895861302936	0.0446677841039467
"2006-10-20"	0.119902337837896	0.689811369051263
"2006-10-23"	0.613342443303022	1.17940193216395
"2006-10-24"	0.0261399943400242	-0.0767333553682192
"2006-10-25"	0.350775834378947	0.372154545111414
"2006-10-26"	0.495075524954469	-0.317338998050065
"2006-10-27"	-0.848755465740147	-0.847509337853758
"2006-10-30"	0.0428270194222868	0.803659304263604
"2006-10-31"	0.000725723637184927	0.905971377047976
"2006-11-01"	-0.737870961370302	-0.577563856928975
"2006-11-02"	-0.0343674024916751	-0.131233614635029
"2006-11-03"	-0.222577005390701	-0.295906840935878
"2006-11-06"	1.12825895838018	1.29765737830398
"2006-11-07"	0.221528929162496	0.162381632432673
"2006-11-08"	0.208050469474408	0.151318662682254
"2006-11-09"	-0.534723873192711	-0.183773901783546
"2006-11-10"	0.186283908423324	-0.71669326210051
"2006-11-13"	0.254581885723937	0.337268447863881
"2006-11-14"	0.633633548097556	1.31637636731154
"2006-11-15"	0.240161561276331	-0.193133107243160
"2006-11-16"	0.228156289408066	0.385893929405423
"2006-11-17"	0.102821898696792	0.363093094336708
"2006-11-20"	-0.0499696623168511	-0.59874016139343
"2006-11-21"	0.164805214039454	-0.182472008983403
"2006-11-22"	0.233543486121235	0.471597872972218
"2006-11-24"	-0.366222479534262	-0.181944717608129
"2006-11-27"	-1.36477965577431	-2.05634951508573
"2006-11-28"	0.343846503735001	-0.109409201285882
"2006-11-29"	0.915949264920979	0.185924480747168
"2006-11-30"	0.0821396348470671	0.436110590901251
"2006-12-01"	-0.280266436396204	-0.731564107789939
"2006-12-04"	0.8845925037396	2.44653899847549
"2006-12-05"	0.399450932714362	1.03197894417510
"2006-12-06"	-0.131557561253093	-0.381760802994524
"2006-12-07"	-0.39784605999289	0.116803835950385
"2006-12-08"	0.181035358428083	-0.393429185239391
"2006-12-11"	0.226718909107415	-0.234666774356107
"2006-12-12"	-0.104793608683806	0.511292123645113
"2006-12-13"	0.116823683886302	0.688233962294227
"2006-12-14"	0.865190164648055	0.620629983493615
"2006-12-15"	0.112179161866699	-0.0629392656882999
"2006-12-18"	-0.323557871666758	0.146796712950348
"2006-12-19"	0.215587700204178	0.585041367817585
"2006-12-20"	-0.141800183811824	0
"2006-12-21"	-0.368073101105448	-0.0937939727976733
"2006-12-22"	-0.53304050482943	-0.690523773304896
"2006-12-26"	0.434282031791344	0.429522424534046
"2006-12-27"	0.699082228469461	1.59704732142423
"2006-12-28"	-0.147988678874178	-0.236905914993812
"2006-12-29"	-0.452335076557198	0.1854523506994