In July 2013, Costco stock traded at around $113 per share. An initial investment of $1,000 would have bought eight shares (with some money left over). As of July 10, 2023, those eight shares would be worth more than $4,200.If you could have invested the full $1,000 (with one fractional share), your total return, including dividends, would be roughly 465%. That would make the initial investment worth around $4,650 as of July 10, 2023.