Does anybody know how reliable FSMOne is? Like where will my ETF be held if I'm doing RSP in the S&P 500, and what happens if they (FSMOne) go bust?

The company has been around since 2000 and SPH is one of the shareholders. To assuage your concerns,

• "The creditors of iFAST will have no claim over your assets."

• "In the unlikely event that iFAST Financial ceases as a business concern, with your permission, all your assets will be transferred to another distributor. Either that, or they will be returned to you."