Rob, Alice and Jim Walton
Rob, Alice, and Jim Walton at a Walmart annual meeting in Fayetteville, Arkansas.
  • The heirs to Walmart founder Sam Walton have added $53.7 billion to their combined wealth this year.
  • Only Nvidia CEO Jensen Huang has seen a larger increase in his net worth on Bloomberg's Billionaire Index.
  • The Walton family fortune surged as Walmart's share price rallied to all-time highs this week.

It's no secret that Nvidia founder and CEO Jensen Huang has had an explosive year so far when it comes to his personal net worth.

Huang has more than doubled his fortune since January, adding more than $62 billion as the chipmaker's stock is up 40% year-to-date.