Imagine you and nine of your friends want to start a business so you each equally contribute around P1,000 in cash, equipment, materials and more. In that business, you each decide to share the profits and ownership equally. In that scenario, it will be similar to the business having 10 shares of stock and each of you own one.
Ang presyo ng mga stocks ay naaapektohan ng supply at demand. Kung mas-marami ang may gusto sa shares ng isang kumpanya, mas-bibilhin nila ito at papayag sila kahit mas-mataas ang babayaran nila bawat share. Dahil dito, aakyat ang presyo ng stock.