Bloomberg has released the “Bloomberg Billionaires Index,” the first daily global ranking of the richest people in the world as part of their coverage of wealth.

The index, changes daily depending on stock fluctuations and economic/company news dynamically measured on changing markets and will be updated every business day at 5:30 p.m.

Bloomberg Professional service customers can access each billionaire’s profile including detailed analysis of how that person’s fortune has been tallied drawing on Bloomberg data and reporting.

“In calculating net worth, we strive to provide the most transparent estimates available. Our full methodology behind the numbers is available here.”

The rankings launched Sunday night with Mexican telecommunications tycoon Carlos Slim edging out philanthropist Bill Gates for the top spot. Their net worths were estimated at $68.5 billion and $62.4 billion.