Though the coronavirus itself may not discriminate in terms of who can be infected, the COVID-19 pandemic is far from a great equalizer. In the same month that 22 million Americans lost their jobs, the American billionaire class’s total wealth increased about 10%—or $282 billion more than it was at the beginning of March. They now have a combined net worth of $3.229 trillion.

The initial stock market crash may have dented some net worths at first—for instance, that of Jeff Bezos, which dropped down to a mere $105 billion on March 12. But his riches have rebounded: As of April 15, his net worth has increased by $25 billion. Eric Yuan, founder and CEO of Zoom, was one of the few to see an increase in net worth even as the markets crashed, and he’s now up $2.58 billion.

These “pandemic profiteers,” as a new report from the Institute for Policy Studies, a progressive think tank, calls them, is just one piece of the wealth inequality puzzle in America. In the background is the fact that since 1980, the taxes paid by billionaires, measured as a percentage of their wealth, dropped 79%.

“We’re reading about benevolent billionaires sharing .0001% of their wealth with their fellow humans in this crisis, but in fact they’ve been rigging the tax rules to reduce their taxes for decades—money that could have been spent building a better public health infrastructure,” says Chuck Collins, director of the Program on Inequality and the Common Good at the Institute for Policy Studies and coauthor of the new report, titled “Billionaire Bonanza 2020: Wealth Windfalls, Tumbling Taxes, and Pandemic Profiteers.”

The Institute for Policy Studies put out its first Billionaire Bonanza report in 2015; since then, the report has continued to quantify the state of wealth inequality in the country, though each iteration may focus on different specifics (the 2018 report highlighted the issue of wealth dynasties). That this report could highlight billionaires profiting from the coronavirus pandemic was, in part, due to good timing. To compile the report, Collins and his coauthors refer to Forbes’s annual World’s Billionaire List, as well as daily trackers from both Forbes and Bloomberg.

Forbes has to pick when to take a snapshot of net worths for that list, and they picked March 18; the list then came out April 7. “We started to immediately look at it and realize, even three weeks later, the story was changing quickly,” Collins says. “Their story was, ‘Hey, the pandemic is really affecting even the billionaires; their wealth is down from last year globally and in terms of the U.S.’ What we found was, wait three weeks and they’ve now surpassed last year’s collective wealth and now they’re surging to new heights.”

This stark example of inequality in the time of a pandemic also serves to reiterate some points the institute has long been making about how deep these inequalities go and how far-reaching they really are. “Inequality is America’s pre-existing condition,” Collins says. “We went into this pandemic very polarized already, and unfortunately we don’t want to come out of it more polarized.” Another key finding of the report is that after the 2008 financial crisis, it took less than 30 months for billionaire wealth to return to its pre-meltdown levels. That wealth then quickly exceeded pre-2008 levels. But as of 2019, the middle class in America has not even yet recovered to the level of its 2007 net worth. “People went into the pandemic with the economic hangover from the Great Recession,” he says.