Stephanie Pomboy
Stephanie Pomboy.
  • Stephanie Pomboy expects US stocks to plunge 30% and a broad economic downturn to take hold.
  • Consumers, businesses, and real estate developers are being hit by soaring interest rates, she said.
  • The Macro Mavens founder and economist warned the impending crash could rival the Great Recession.

Prepare for stocks to crash and the American economy to suffer a sweeping downturn that rivals the Great Recession, Stephanie Pomboy has warned.

"The everything bubble has now burst, and that's going to hit everything, everywhere all at once," the Macro Mavens founder told Fox Business on Wednesday. "There's a lot of ugly stuff coming down the pike."