Gold and macro environment, page-206

Not based on the article I attached unless I misunderstand what you are referring to

"Unfortunately, FINRA only has access to margin debt data filed by the brokerage firms it regulates (also known as brokers and dealers). Thanks to the repeal of the Glass-Steagall Act in 1999, which allowed federally-insured banks to be gobbled up by the trading casinos on Wall Street, the vast bulk of margin debt is now being loaned out not by brokerage firms but by giant banks where the U.S. taxpayer will be on the hook for a bailout if they go belly up from bad gambles – as occurred in the crash of 2008. "