The Walton family lost nearly $19 billion on Tuesday after Walmart's biggest stock slide in about 35 years

It is a tough day at the family business.

Walmart lost almost $19 billion on Tuesday as its stock fell, according to a report.

Walmart reported earnings on Tuesday, missing expectations. It was the biggest slump in almost 35 years for the company's stock.

The tough quarter was caused by factors including overstaffing, inventory issues, and fuel prices, according to Walmart's CFO.

Walmart is also affected by inflation.

People are buying items that Walmart makes less money on, like eggs, instead of big-ticket fancy items the store makes more on, such as electronics.

The family of the late co- founder of the company own less than half of the company and are worth $212 billion.

The world's richest family is listed in the index.

Walmart and the foundation did not respond to the request for comment.