zlacker

>>qqqqqu+(OP)
If I buy a stock, does the price at which I agreed to buy it become the new share price on the stock exchange?

Every article on "Where do stock prices come from?" seems to just talk at a high level about supply and demand.

But where does the price come from at a nitty-gritty level? Is it an average of all existing offers or something?

Do different exchanges and stock-ticker websites have different formula for calculating share price?

If a very low-volume stock is listed at $4, and then I offer to buy a share for $100, does the NYSE suddenly start listing its price at $100?

>>robert+XO
I think a lot of questions that people have about economics/finance/money are about the nitty-gritty mechanics, and a lot of answers are instead about the big picture / general laws. That's what leads people to say they can't understand economics.

(Also it's strange that sometimes there is disagreement about the mechanics between actual practitioners, see the recent confusion about whether fractional reserve banking is true.)