If you really care about this you must also pay attention to funds you hold, as (AFAIK) the vast majority of providers earn extra yield by lending out their hol

If you really care about this you must also pay attention to funds you hold, as (AFAIK) the vast majority of providers earn extra yield by lending out their holdings https://www.investopedia.com/investing/role-securities-lending-etf-returns/ https://www.investopedia.com/investing/role-securities-lendi... > BlackRock, Inc. (BLK) managing director for securities lending Jason Strofs indicates that this is a significant business: "about $3 trillion of our assets we consider lendable, which consists of iShares ETFs, mutual funds, collective trusts, and separate accounts," he says. "Across that $3 trillion, roughly 9% of those securities are out on loan on any given day." SLB is a double-edged sword, for example since it increases float it may also work to reduce spread, reducing transaction costs for everyone