The closing days of Summer 2017 have been turbulent. The power of nature unleashed historic calamity on the people and structures of coastal Texas and Louisiana. Economic impact reverberated across the country. Half a world away, the power of WMDs in the hands of an unpredictable owner has been on full display. The geopolitical impact echoed around the world. Amid this calamity and concern, global financial markets have displayed notable stability. The longer its absence, the louder the voices warning of a meaningful stock market decline. A review of some fundamentals can provide perspective.