howdy..MM's can't profit on CMKX?? Let's see..I some awhile back at .0004..When it was filled it fetched .00041. Neither I or you can buy at that extra fractional cost, you know why? It's because a MM took the .0004 bid and raised his to .00041 so he would be first in line to grab every sell at .0004.
Guess what he did then..He sold at .0005 to the retail market. I believe that's a profit..