This is a far more complex question than initially appears. It could be: a) Companies that INITIALLY listed on NYSE&NASDAQ in 2013. Does this...
Are you trading noise or trends?
Get a complete time & sales report on the stock and compare - that's the only way to really find what has happened. As I reported earlier I...
Originally announced in July 2013 and finally implemented on December 9 2013 the Consolidated Tape System now reports odd lot trades as part of...
If you are dependent upon a particular platform, ask to be part of their alpha/beta testers. That way you get to test YOUR systems against...
The old adage TANSTAAFL applies. Some interesting reading here about where that phrase comes from:...
Time for pay for a service. If you really trade or have any intention of trading you should avoid "free" sources because you will end up spending...
You get what you pay for. Pay peanuts (nothing) and you get monkeys.
http://www.djindexes.com/dataservices/?go=end-of-day
Dow Jones charge signficant money for index weights so you are unlikely to get them without subscribing to a premium vendor. A possible proxy...
You should be aware that there are multiple open prices... One is the "tape open" which is the first price after 9:30:00. Then there is the...
Nice bit of survivorship bias in that universe.
One problem with a world stock index is that they are denominated in USD, so you are actually charting a "world and currency index" which is fine,...
You should never adjust on anything but dates before the exdate. The declare, record and payment date make _no_ difference to your price data.
Corporate actions handling is typically the difference. Typically, the cheaper the feed, the worse the corporate action coverage. Look for...
If it's worthwhile in your trading system to get such alerts, $400 a year is chicken feed
How do you propose to pay for market data licenses?
Do not undderstand Bid-Ask was 26.21/26.29 (EDGX) You place 26.29 (unknown exchange or routing) You get zero fill Perhaps your order was...
So are you going to try and figure out all of the above issues yourself? It's easy for a handful of stocks... but crazy difficult for a...
Trying to use historical fundamental data is like opening a can of worms. Here's a few concerns on historical fundamentals: 1. Make sure...
Separate names with a comma.