Ask HN: What scientific phenomenon do you wish someone would explain better?
If I buy a stock, does the price at which I agreed to buy it become the new share price on the stock exchange?<p>Every article on &quot;Where do stock prices come from?&quot; seems to just talk at a high level about supply and demand.<p>But where does the price come from at a nitty-gritty level? Is it an average of all existing offers or something?<p>Do different exchanges and stock-ticker websites have different formula for calculating share price?<p>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?