List of Investments from safest to riskiest?
With every caveat that Rick said plus many many more lets have some fun.  One common way to measure risk is volatility of returns roughly how much the value of your asset jumps around.  Interestingly, the following ordering is fairly similar for many other common measures of risk. The first three on the list would be mostly interchangeable.  Generally, putting your money in "cash" investments has no real day-to-day price variability and the main risk is that the bank won't give you your money back at the end.  Money market funds are last as they can "Break the buck". To get a feel for the next few on the list I'm using previous 360 day volatility numbers for representative broad indices (asof 2014-10-27).  While these volatility values can move around quite a bit, the order is actually remarkably stable. Hedge funds might seem out of place here, but remember that hedge funds can hold be long and short at the same time and this can cancel out daily variation.  However, Hedge funds do have plenty of risks that may not be well accounted for by this measure.   For derivatives I'll refer to back to Rick's answer. This is a measure for broad investment in these categories your particular investment in Long-term Capital Management or Argentine Bonds may vary. It is important to note that your return on your investment generally grows as you go toward more risky investments down this list as people generally expect to be rewarded  in the long term for risky investments.