Amazon shares rose on a good fourth-quarter earnings report on Friday, boosting Jeff Bezos‘ net worth by roughly $19 billion in a single day.

According to Forbes, Amazon founder Jeff Bezos increased his net worth by $18.8 billion on Friday, taking it to $183.5 billion. According to records from the end of December, Bezos controls 12.7% of Amazon.

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The shares of Amazon soared after the business published fourth-quarter profits and upped the price of Amazon Prime by $20 per year late Thursday. Amazon’s earnings were above expectations, but revenue fell short. On Friday’s spike, the company’s market worth increased by $141 billion.

Bezos has lost about $25 billion thus far in 2022, according to the Bloomberg Billionaires Index, which was released last month.

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Bezos’ Friday gain contrasts sharply with Meta CEO Mark Zuckerberg’s net worth drop earlier this week.

Meta suffered the greatest valuation wipeout in one day in US stock market history after posting catastrophic fourth-quarter earnings late Wednesday, losing about $251 billion in market capitalization. According to the Bloomberg Billionaires Index, Zuckerberg’s net worth dropped roughly $31 billion in a single day, to around $90 billion.

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Investors expect policy tightening at the US Federal Reserve will erode the industry’s lofty valuations after years of ultra-low interest rates, putting pressure on big US tech-focused corporations in 2022. In January, the Nasdaq, which is dominated by tech and other growth stocks, plunged more than 9%, its largest monthly drop since the coronavirus-induced market meltdown in March 2020.

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Pinterest and Snap both released good quarterly reports after the market closed on Friday, sending their shares up 17% and 52%, respectively, more than offsetting losses from earlier in the day. Their reports also boosted Twitter by 8% and helped Meta reclaim 1% of its lost ground.