Someone calling itself Sadafrat on Imgur mentioned: "If you can commit to not needing your money for 4 weeks, there are better rates buying Treasury bills directly at Treasurydirect.gov." Somebody replied "I am seeing an average of 3.27% discount for a 91-day bill:
https://www.bankrate.com/rates/inter...asury/treasury bills."
I fear that I need someone to explain it with hand puppets.