The legendary investor has over $1 billion in cloud companies including Microsoft, Amazon, ServiceNow, Salesforce.com and Workday. : The legendary investor has over $1 billion in cloud companies including Microsoft, Amazon, ServiceNow, Salesforce.com and Workday Billionaire investor Stanley Druckenmiller might be the greatest investor alive today. His track record is astonishing. “Druck,” as he’s known, had 30 straight profitable years from 1980 to 2010. During that time, he earned an average of 30% a year. If you took $10,000 and compounded it at 30% a year for 30 years, you’d amass a $26.2 million fortune.