I have a similar amount to invest... And I'm spending way too much time thinking about what to do.
In truth, it just FEELS ridiculous to throw in a lump sum when it seems as though there is a good chance of another correction coming in the near future.
I like what Sehr suggested a lot, and I am thinking of:
-50% Dollar Cost Average over the next 3 months. Invest regardless of the market movement
-50% dump it in large chunks, maybe even all of it at once, if the market gives me a particularly good reason to do so; this also has to be spent within 3 months. Anything left over can be CDA'd after these 3 months are up.
This approach gives me the feeling that I am getting the best of both worlds - and at the end of the day I am chasing the feeling of having done the right thing as much as I am hoping for a good ROI.
Investment strategy looks something like this:
Asset type allocation:
Cash: 5% (max!)
Bond: 25%
Equity: 70%
Asset regional allocation:
US: 40%
Emerging: 20%
Developed: 40% (some overlap with US)
Rough estimates lead to:
SCHB: 26% (equity US broad, TER 0.03%)
SCHF: 32% (equity developed non-US large/mid-cap, TER 0.06%)
SCHZ: 20% (bonds US, TER 0.04%)
SCHC: 4% (equity developed non-US, small-cap, TER 0.12%)
SCHE: 18% (equity emerging broad, TER 0.13%)