yeah they charge you now for adding liquidity. 0.0018 cost. 0.0014 rebate for removing liquidity on a per share basis It was like EDGA before but after this change its more like using CBOE. They were getting killed volume wise by the introduction of the BYX route so I think they changed it to this to try and induce some volume. Watch out for the programs that take advantage of it. They put a small amount on the route... when you hit they either pull or remove and then if you leave your order there even for a second they hit you. You pay the fee and they receive the credits.