<prompt> Human: Do new shares of a company ever appear after the IPO? I dont understand this because if say 100 share were released initially, then buying 100 shares would mean owning the entire business. But say you just bought 50. If the company added 100 more shares wouldnt that mean 200 is the company, thus making you go from owning 50 to 25? Very confused. yes Im just starting to take finance courses lol  <response>: Youre asking a far more complicated question than you realize. But to keep it simple, yes - companies can come out with more shares, they can introduce new classes of shares, they can buy back existing shares, etc. 