Amazon beat expectations on Thursday after reporting startling quarterly earnings and exceeding revenue estimates.
CEO Jeff Bezos, who owns 83,921,121 shares in the company, made a paper gain of more than $8.05 billion prior to the opening on Friday as shares spiked more than 20 percent in premarket trading.
Bezos' net worth jumped to $43.2 billion from $34.7 billion the previous day, according to Forbes.
The online retailer reported a 26 percent rise in North American sales, year-over-year, with sales of $13.79 billion.
Similarly, Google's stock climbed more than 11 percent last week in extended trading after the company posted quarterly earnings of $6.99 per share on $17.73 billion in revenue. The Google co-founders, Larry Page and Sergey Brin, each racked up about $4 billion that day.
Must be nice.