It appears that the "big bang" over the past weekend went relatively smoothly. The big bang
was the transition from LIBOR to the Secured Overnight Funding Rate
(SOFR) for exchange-traded swaps at the Chicago Mercantile Exchange. The
LIBOR scandal in 2012 caused regulators and market participants alike
to search for another reference interest rate that was less susceptible
to manipulation. In the U.S., SOFR has become that reference interest
rate.