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Why is stock dilution legal?
For new shares to be successfully sold, the price has to be below market price. If you currently own shares of that company, you should always get an option to buy those newly sold shares at that discounted price. The number of options depends on the relative number of shares you hold. Lets say you own 100 out of 1000 shares, currently priced at $10. 100 new shares are to be sold at $9. Since you are holding 10% of all shares, you have the option (i.e. the right) to buy 10 new (cheaper) shares (10% of 100) before anybody else can buy them. Theoretically, the money you save by getting the shares at a discounted price is equal to the money you lose by the share's value being diluted. So, if you're a shareholder and the company is increasing it's capital, you're given the right to "go with it".