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Companies that use their cash to buy back stock, issue dividends, etc. — how does this this typically affect share price?
If a company is valued correctly, then paying dividends should lower the share price, and buying back shares should leave the share price unchanged.  If the share price is $100, and the company pays a $10 dividend, then either its cash goes down by $10 per share, it is has to borrow money for the same amount, or some mixture. Either way, the value of the company has gone down by $10 per share.  If the share price is $100, and the company buys back 10 percent of its shares, then it also has to find the money, just as for the dividend, and the value of the company goes down by 10 percent. However, the number of shares also goes down by 10 percent, so the amount of value per share is the same, and the share price should stay unchanged.  Now there are psychological effects. Many people like getting paid dividends, so they will want to own shares of a company paying dividends, so the share price goes up. Similar with a share buyback; the fact that someone buys huge amounts of shares drives the price up. Both effects are purely psychological.  A buyback has another effect if the shares are not valued correctly. If the company is worth $100 per share but for some reason the shareprice is down to $50, then after the buyback the value per share has even gone up. Basically the company buys from stupid investors, which increases the value for clever investors holding on to their shares. If the shareprice were $200, then buying back shares would be a stupid move for the company.