No such list that I'm aware of and the US govt would be at the top of the list ;) Because of inflation and FDIC protection limits, most people don't carry arou

No such list that I'm aware of and the US govt would be at the top of the list ;) Because of inflation and FDIC protection limits, most people don't carry around excess cash. It costs money to hold cash. Fidelity will let you hold up to 1.25M before getting past FDIC protections. Many don't like their cash to go beyond FDIC protections, so 1M or so cash is around the upper limit people would regularly want to hold.