India, Dec. 21 -- Tesla CEO Elon Musk became the first person to cross the $700 billion mark in net worth on Friday, after the Delaware Supreme Court reinstated Tesla stock options worth $139 billion that had been voided last year, according to Forbes' Billionaires Index.

Musk's net worth surged to about $749 billion late Friday following the ruling, which restored his 2018 pay package, once valued at $56 billion, two years after a lower court struck it down as "unfathomable." The Supreme Court said a 2024 decision rescinding the compensation deal had been improper and inequitable to Musk.

Earlier this week, Musk became the first person ever to surpass $600 billion in net worth amid reports that his aerospace startup SpaceX was likely t...