Go with an S & P 500 Index fund, a Total Stock Market Index fund, or perhaps a 1000 Stock Index fund, don't waste your time inventing in tip, or sure things, and never waste your time with Hedge funds.
More after the break.
Withdrawals Plague Once-Mighty Hedge-Fund Firms Brevan Howard and Tudor
The index funds listed are relatively safe, and broad investments especially if paired with an international index fund. These are very good investments for those with long investing time horizons like Millennial's retirement funds. On the other hand, for shorter duration there are many funds today which allocate investments based on the time horizon.
Risk can result in reward, but must be limited in a longterm investment portfolio.