Copyright law on historical data

T

telience

I notice all sorts of different vendors, including the defunct opentick, selling or even giving the data away for free.

I was wondering what the copyright law is with regards to historical tick data .. does anyone know?

If the data is copyrightable, it seems to me that the original exchanges would own the copyright and these middle men are breaking the law, at least those giving the data away for free.
 
Exactly how could a graph be plotted without historical data?

The exchange allows for broadcast of time delayed data.

The real time data feeds is what they charge $ for.

You can go to CME's web site daily and download tick data for free.
 
Quote from PocketChange:

Exactly how could a graph be plotted without historical data?

The exchange allows for broadcast of time delayed data.

The real time data feeds is what they charge $ for.

You can go to CME's web site daily and download tick data for free.
More...

Where? Interested in tick data ;)
 
Quote from PocketChange:

You can go to CME's web site daily and download tick data for free.
More...

Can you provide a link please? I believe CME charges for this information.
 
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