Meet the world's 10 richest women who are jointly worth about $500 billion — almost as much as ExxonMobil

• The top 10 women on the Bloomberg Billionaires Index are worth over $500 billion combined.
• Walmart heiress Alice Walton and Fidelity CEO Abigail Johnson are both on the list.
• Take a closer look at the world's richest women.

The world's 10 richest women include the CEO of Fidelity Investments and the heiresses to the L'Oréal, Mars, and Walmart fortunes, per the Bloomberg Billionaires Index.

They've each amassed fortunes of more than $27 billion, and are worth a staggering $508 billion combined at the time of writing — just shy of ExxonMobil's market value of $510 billion.

While four of the 10 women have seen their net worths shrink this year, the group's collective wealth has jumped by an impressive $37 billion.

Check out this list of the 10 wealthiest women on the planet.