their money market funds seem to have the highest returns.

Islamic banking (or participant banking) is banking or banking activity that is consistent with the principles of Islamic law (Sharia) and its practical application through the development of Islamic economics. Sharia prohibits the fixed or floating payment or acceptance of specific interest or fees (known as Riba or usury) for loans of money. Investing in businesses that provide goods or services considered contrary to Islamic principles is also Haraam (forbidden). While these principles may have been applied to historical Islamic economies, it is only in the late 20th century that a number of Islamic banks were formed to apply these principles to private or semi-private commercial institutions within the Muslim community.[1][2]

Is this Amana haraam or halal?

What if u lend to ze government and it uses the cash for helping criminals or to fund campaigns or corruption? I thought interest was haraam?