Supply and demand. More demand, ppl have to bid more to get the stock, so stock goes up. Vice-versa.
Also depending on how much investors are willing to sell the shares at. If all the investor holding apple shares are only willing to sell at $200, buyers have to match that $200 in order to make a buy, thus increasing stock price.
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Supply and demand. More demand, ppl have to bid more to get the stock, so stock goes up. Vice-versa.
Also depending on how much investors are willing to sell the shares at. If all the investor holding apple shares are only willing to sell at $200, buyers have to match that $200 in order to make a buy, thus increasing stock price.