After the straight-up move in 2017, it appears the market has decided on a pretty mean year-long reversion to the mean in 2018.
My portfolio balance has whipsawed between a decline of -2.5% (at least four times) to +6% (once or twice) - a relatively narrow range. However, I've been able to trade 'successfully' (due to pure luck). o my benchmark (the global index, which I track using VT/VTWSX), I'm currently ahead by +7% - ie, the portfolio is up +0.5%. (In January [during the parab Relative olic move up in global markets], I was trailing my benchmark by -7% - so being ahead by the same percentage is a big deal.)
As of last Friday's close, I moved to cash. I made the decision despite having made optimistic comments earlier in the day.