Were you able to buy at bid ? I dont know if I understand this right but an offer to buy at bid lowers the price away from the ask. MM makes more money out of the ask than the bid. For an investor to be able to get a block of shares bought at around the bid would run them on losses. There's 2 biddings. MMs bid high to sell on ask and investors bid low to buy on bid or close to it in the up mark. Have you been able to do that ?