But one type of stock-market leverage is measured: “margin debt” – the amount individual and institutional investors borrow from their brokers against their portfolios. Margin debt had surged by $22.9 billion in January to a new record of $665.7 billion, the last gasp of the phenomenal Trump rally that ended January 26. But in February, as the sell-off was rattling some nerves, margin debt dropped by $20.7 billion to $645.1 billion.
https://wolfstreet.com/2018/04/23/an-orderly-unwind-of-stock-market-leverage/
