I opened a 2015 Roth ($5500) with Vanguard and am wondering where to put it. Per the some of the reading, Stock Series and elsewhere, I was thinking of putting it in Bonds (I don't have the 20% for the 80-20 split), but don't have the minimum for the Admiral shares (VBTLX).
So which "Investor Class" Bond fund do you suggest?
Does it much matter if I let it sit there in the Money Market until later this year when I contribute again for 2016, getting it over the $10,000, so I can then put it in VBTLX?