my argument is that yes, those market makers do have that responsibility, and can set the spread wherever they want, BUT in markets that are inherently less inefficient (after hours, illiquid etfs), they will very rarely quote their best price. in essence, the quotes you see are not an indication of the true market, they're an indication of a max profit market for the market maker. my argument is, that in order to get them to quote more competitively, currently, the only tools available are to participate in behavior that is considered manipulative.Quote from StarDust9182:
I don't understand your argument here. True market makers have legal responsibilities to buy stock when no one else will and sell when no one else will don't they?So they are given certain edges (subject to rules) like setting the spread.
So your tool is to not trade volume and thus force the market makers to shift their price or lose their jobs in the long run. Is my reasoning incorrect?
Where did you learn about market microstructure?
for example, an illiquid etf is quoting a 10% spread, midpoint is fair value. the market maker can profitably quote up to 3% discount of mid, but he currently isn't in case someone comes in and carelessly dumps. you need to sell. no one will lift your offer, even if you quote 3% discount to mid. however, if you bid at that 3% discount, he matches you. you cancel and you hit his bid. in theory, this is manipulative. in practice, this price was within what you were willing to pay, and what he was willing to quote and a fair exchange took place. since there are no tools available that would allow for you to ask him to quote there, pricing the market yourself there to see if there is any liquidity, is the only option you have.
the idea is not to make them lose money, the goal is to find a price that both of you would be willing to transact.
i learned microstructure primarily by practice, but i keep up to date with all the relevant studies/literature.
as far as a reference for my hold comment, it's industry color that you're not going to find publicly published. if you want to verify it, you could try calling them, but with all this heat i'd doubt you'd get very far. best bet is if you can find some professional traders or can talk to another firm. it was a huge print and the traders i work with and that i know in the business saw it hit the tape and then watched the aftermath. everyone was talking about it and the story was routed out pretty quickly. it's a very small industry.
