Stock price when the opinion was issued
Whatever happens in the US affects the rest of the world. He wouldn't recommend emerging markets, as they tend to underperform if/when there's a recession.
Investors would be better off buying the best companies in the German market, rather than the whole German market. Germany's the 4th-largest economy in the world, but it's had a bunch of issues with its own deficit and economic slowdown. He owns specific stocks in Europe.
His 1st recommendation would be to not buy Index ETF’s. He doesn’t know why this index should reflect Germany’s economy. Indices are not countries. He doesn't owns any companies in Germany right now because he has concerns about the euro.