I am naive here, can someone explain what is the economic utility of a stock market ?<p>For example, its easy to understand utility of food, cloths, car, house, money. But I am not able to find a reason about stock market existence for day-to-day trading, where secondary stocks are traded daily after IPO. It seems none of the day-to-day trading money/profit ever goes back to business to help them to improve that business.