What the linked article doesn't discuss is that it is possible to get a real-tim...

javert · on April 17, 2012

So what you're saying is that the subpenny price that the trades are actually executing at is publicly available?

lrm242 · on April 17, 2012

Yes. Every trade is publicly available. The price, venue, size, etc.

cheddarmint · on April 17, 2012

Yep. Here's an example:

http://www.google.com/finance?q=ABIO

When I checked this page, the last displayed trade was $0.737.

retrogradeorbit · on April 18, 2012

But isn't this just the aggregate? How is every trade visible? Why, if its all free and public, do you have to pay so much for live data feeds?

bradleyjg · on April 18, 2012

All trades are made publicly avaiable eventually. The lower latency you want the more you have to pay. And some trades aren't avaiable at low latency for any price.