hiriskpaul wrote:One thing I would add is that although the US equity market is on a high valuation, it is arguably the market with the least risk (certainly the lowest volatility). So even if there was a significant worldwide correction, it would not surprise me if the US market fell the least.
Regarding volatility, I would have thought the FTSE100 and S&P500 were about the same (I just eyeballed a 10 year graph with both on, e.g. 10yr on bigcharts.com )
Regarding risk, I think the differing valuations make the US market riskier, e.g. the high US CAPE http://www.multpl.com/shiller-pe/ vs the lower UK one https://www.ukvalueinvestor.com/2016/06/ftse-100-valuation.html