Exactly. There used to be larger trading cost discrepancies when you weren't trading in lots of 100. (The per trade cost from brokerages were higher) Now the

Exactly. There used to be larger trading cost discrepancies when you weren't trading in lots of 100. (The per trade cost from brokerages were higher) Now the issue is that you can get steered to paying full bid-offer when you shouldn't need to. The writer is very good at cutting through the clutter on issues like this.