[apaprocki]

Anecdote: I once asked how much it would cost if I enabled myself for realtime access to every exchange we offer and I was given the ballpark figure that it would cost the company $80k/year. Exchanges charge a lot.

[chollida1]

Hmm, that seems cheap :)

TSX, NYSE, and NASDAQ are around $5000/month each for full depth of book.