I suggested going to cash ASAP in a US Treasury Money Market and dollar cost averaging into the following low cost index funds mirroring the federal government's very inexpensive Thrift Savings Plan in equal investments over 36 months;
Vanguard Intermediate-Term Bond Index Fund Admiral Shares
Vanguard Extended Market Index
Vanguard FTSE All-World ex-US Index Fund
Vanguard 500 Index Fund
US Treasury Money Market
With negative interest rates most likely on the way, I advised having a good chunk of cash, as in physical bills on hand.
I would also have a few gold and silver coins just in case as well.
It's going to get uglier.