Different forms of investment in companies are permissible as long as the company doesn’t deal in haram products, and the investment itself does not contradict the Islamic law.
The Islamic Religious Council of Singapore, states the following: Investment in any company, whether it be in the form of stocks, shares, unit trust, etc., is halal as long as the following conditions are met:
1. The company does not deal in haram matters, such as alcohol, porcine products, weaponries, music and entertainment, non-Islamic faith-based projects, and wanton destruction of flora and fauna.
2. The company does not involve in any oppression against humanity, especially Muslims.
3. The investment instrument itself does not contradict Islamic Law.
We would like to advise one to check the company thoroughly or check market sectors you would like to invest in before making any commitment.