I had $2150 cash built up in my E*Trade account from monthly contributions. It was not hard to decide what to invest it in. I simply entered all the market values of my investments into a spreadsheet and looked at how far off the current asset allocations were from the original “desired” allocations. Looks like the US equity component (furnished by VTI) was way down (thanks to the strong CAD dollar). Other components like International equities (provided by XIN) and Canadian equities (provided by XIC) were way up. Bonds were almost flat. So it was pretty obvious, rebalancing necessitated a purchase of VTI. This also made sense since everything else was up and VTI (in CAD dollars) was down (relatively speaking). So I bought $2150 of Vanguard Total Stock Market Index ETF (VTI) a few days ago.