Saudi and American Stock Market Crashes

U.S. stocks careened lower Monday 9th of March 2020, with major indexes swinging perilously close to the first bear market in more than a decade as a price war for oil and fallout from the coronavirus frightened investors. With different fears, the Saudi stock market might be seen differently from most other markets in the world during and after the 2006 crash. What happened in two crashes, reasons and lessoned learned?

Required: 2500-3000 words