It is hard to define exactly what a "Eurodollar" is, but for now assume that a Eurodollar is a bank deposit in a jurisdiction not subject to the Fed's authority. ("Eurodollar" has nothing to do with Euro the currency. People are surprised that "dollars" exist outside the authority of the Fed.)
A Eurodollar future is a contract to borrow a "Eurodollar" for typically 3 months some time in the future. The price of the future is quoted as (100 - interest rate). For example, the Sep 2023 contract (called GEU3) is currently priced at 97.225, meaning that people are agreeing to lend money for 3 months in Sep 2023 at a 2.775% interest rate. Now to my point: the Eurodollar futures curve is currently inverted starting in Sep 2023. For example, the price of the GEU4 future (Sep 2024) is 97.50, implying a 2.50% interest rate, or a rate cut in GP's parlance relatively to Sep 2023.
Why would you pay attention to Eurodollar futures? For one thing, the notional value of all futures is about $12T. (This market used to be larger than the Treasury bond market until Congress fixed the problem.) Like all markets, it may be right or wrong, but if you strongly believe that rates will not be cut between 2023 and 2024, there is a ton of money to be made in that market. The curve started getting nervous, with small inversions of 1-4 basis points, in December 2021, and the inversion has grown larger since. The inversion peak-to-through was ~30bp yesterday and is ~40bp after the Fed's announcement today.
Good question. Those who understand this stuff (not me) are busy making money and don't write about it. Nevertheless, I think that these papers [1,2] by Pozsar offer a fabulous overview of the contemporary money market.
Can you elaborate? I don't understand.