Tradesports offering 70 shares ($5 each) on Colts -9' at -104.1
Matchbook offering over $5k on Colts -9' at -106
Tradesports offering 57 shares ($5 each) on Colts -9' at -106.2
Obviously that doesn't take into account any fees or comissions associated with trading on exchanges, but they are offering the best vig (granted with low "limits")