He comprado quantquote.com datos históricos de AAPL en segundo lugar.
Para comparar también tengo activetick.com
Para el activetick utilicé la API de comercio histórico.
Si miras alrededor de las 15:13:53 verás que ActiveTick informa de Comillas donde QuantCode afirma que no existen en un segundo específico.
¿Considera QuantQuote sólo las comillas de ciertas bolsas?
ActiveTick (quotes) Datetime,Price,Size,Exchange,Cond1,Cond2,Cond3,Cond4 2014-07-21 15:13:40.134,94.045,1100,Q,37,0,14,0 2014-07-21 15:13:41.003,94.047,3,D,0,0,0,37 2014-07-21 15:13:43.429,94.05,100,D,0,0,0,0 2014-07-21 15:13:43.472,94.045,900,D,0,0,0,0 2014-07-21 15:13:47.612,94.0401,50,D,0,0,0,37 2014-07-21 15:13:47.869,94.04,12,D,0,0,0,37 2014-07-21 15:13:48.508,94.0401,21,D,0,0,0,37 2014-07-21 15:13:48.648,94.0449,159,D,0,0,0,0 2014-07-21 15:13:49.291,94.0497,100,D,0,0,0,0 2014-07-21 15:13:50.350,94.047,105,D,0,0,0,0 **2014-07-21 15:13:51.449,94.05,100,Y,0,0,0,0 2014-07-21 15:13:51.450,94.05,95,J,0,0,0,37 2014-07-21 15:13:51.450,94.05,100,J,0,0,0,0 2014-07-21 15:13:51.450,94.045,100,Z,0,0,0,0 2014-07-21 15:13:51.450,94.045,500,Z,0,0,0,0 2014-07-21 15:13:51.450,94.05,100,Z,0,0,0,0 2014-07-21 15:13:51.623,94.05,400,D,0,0,0,0 2014-07-21 15:13:51.623,94.05,200,D,0,0,0,0 2014-07-21 15:13:51.623,94.05,200,D,0,0,0,0 2014-07-21 15:13:52.683,94.045,200,Z,0,0,14,0 2014-07-21 15:13:54.319,94.0499,50,D,0,0,0,37 2014-07-21 15:13:55.278,94.045,200,Z,0,0,0,0** 2014-07-21 15:13:58.186,94.05,20,Z,0,0,0,37 2014-07-21 15:13:58.212,94.05,100,D,0,0,0,0 2014-07-21 15:13:58.346,94.0499,20,D,0,0,0,37
QuantQuote (seconds) datetime_unix, datetime,time,usd_open,usd_high,usd_low,usd_close,volume 1405969978 2014-07-21 15:12:58 33178000 94.63 94.6394.63 94.63 55 1405969988 2014-07-21 15:13:08 33188000 94.62 94.6294.62 94.621000 1405969993 2014-07-21 15:13:13 33193000 94.62 94.6294.62 94.62 300 1405969994 2014-07-21 15:13:14 33194000 94.62 94.6294.62 94.62 200 1405969998 2014-07-21 15:13:18 33198000 94.62 94.6294.62 94.621919 1405970000 2014-07-21 15:13:20 33200000 94.62 94.6294.62 94.62 100 1405970006 2014-07-21 15:13:26 33206000 94.63 94.6394.63 94.63 25 1405970010 2014-07-21 15:13:30 33210000 94.62 94.6294.62 94.622000 1405970016 2014-07-21 15:13:36 33216000 94.62 94.6294.62 94.622400 1405970017 2014-07-21 15:13:37 33217000 94.62 94.6294.61 94.61 100 1405970023 2014-07-21 15:13:43 33223000 94.63 94.6494.62 94.642100 1405970029 2014-07-21 15:13:49 33229000 94.63 94.6394.63 94.63 100 **1405970030 2014-07-21 15:13:50 33230000 94.64 94.6494.63 94.631900 1405970033 2014-07-21 15:13:53 33233000 94.63 94.6394.63 94.63 100 1405970035 2014-07-21 15:13:55 33235000 94.63 94.6394.63 94.63 200** 1405970037 2014-07-21 15:13:57 33237000 94.63 94.6394.63 94.634323 1405970039 2014-07-21 15:13:59 33239000 94.63 94.6394.63 94.63 400 1405970048 2014-07-21 15:14:08 33248000 94.63 94.6394.63 94.631000 1405970049 2014-07-21 15:14:09 33249000 94.63 94.6394.63 94.63 200 1405970061 2014-07-21 15:14:21 33261000 94.63 94.6394.63 94.63 200 1405970062 2014-07-21 15:14:22 33262000 94.62 94.6294.62 94.62 100 1405970072 2014-07-21 15:14:32 33272000 94.63 94.6394.63 94.63 100 1405970073 2014-07-21 15:14:33 33273000 94.63 94.6394.63 94.633176 1405970106 2014-07-21 15:15:06 33306000 94.64 94.6494.64 94.64 265 1405970112 2014-07-21 15:15:12 33312000 94.65 94.6594.65 94.65 100 1405970120 2014-07-21 15:15:20 33320000 94.65 94.6594.65 94.65 200 1405970133 2014-07-21 15:15:33 33333000 94.66 94.6694.66 94.663339 1405970134 2014-07-21 15:15:34 33334000 94.66 94.6694.66 94.66 400 1405970135 2014-07-21 15:15:35 33335000 94.66 94.6694.66 94.66 200 1405970142 2014-07-21 15:15:42 33342000 94.66 94.6694.66 94.66 296 1405970146 2014-07-21 15:15:46 33346000 94.66 94.6794.66 94.67 400
EDIT: ActiveTick incluye los siguientes intercambios en los datos: exchange value ExchangeAMEX A ExchangeNasdaqOmxBx B ExchangeNationalStockExchange C ExchangeFinraAdf D ExchangeCQS E ExchangeForex F ExchangeInternationalSecuritiesExchange I ExchangeEdgaExchange J ExchangeEdgxExchange K ExchangeChicagoStockExchange M ExchangeNyseEuronext N ExchangeNyseArcaExchange P ExchangeNasdaqOmx Q ExchangeCTS S ExchangeCTANasdaqOMX T ExchangeOTCBB U ExchangeNNOTC u ExchangeChicagoBoardOptionsExchange W ExchangeNasdaqOmxPhlx X ExchangeBatsYExchange Y ExchangeBatsExchange Z ExchangeCanadaToronto T ExchangeCanadaVenture V ExchangeComposite
0 votos
Parece que no eres el único que tiene problemas con los datos de QuantQuote. michaels-musings.com/ Según otro comentario (#comment-690), QuantQuote tiene dos conjuntos de datos: un conjunto limpio y un conjunto crudo. ¿Saben qué conjunto han recibido? Esto es una vergüenza. Una escuela prestigiosa como Caltech está siendo utilizada para explotar a la gente con críticas falsas y comerciales. Apuesto a que Caltech ni siquiera sabe que esto está sucediendo. Esto realmente necesita ser reportado a su consejo de ética. Obvio conflicto de intereses.
1 votos
Vea mi respuesta más abajo (y acéptela ya que es correcta). No hay nada malo con el conjunto de datos QuantQuote, user670186 simplemente no hizo la conversión de tiempo correctamente. Típico error de codificación de un novato.