Hi bone, thanks for opening this thread. Also thanks for the link to the CME document on spreading the 3m SOFR vs ED.
If I am going the wording of the contract specs and exchange rule 460, maybe I am being silly for overlooking something, but I think there is some inconsistency.
Rule 460 states:
"46003.A. Final Settlement Price 1. Definition of Reference Quarter For a contract for a given delivery month, the Reference Quarter shall be the interval that ends on (and does not include) the third Wednesday of the contract delivery month, and that begins on (and includes) the third Wednesday of the third calendar month preceding the contract delivery month.
Example: For a hypothetical contract for which the delivery month is March 2022, the contract Reference Quarter shall start on (and shall include) the third Wednesday of December 2021 (December 15, 2021) and shall end on (and shall not include) the third Wednesday of March 2022 (March 16, 2022). "
Yet the above document on spreads reads:
"SFRU0’s final settlement price will be determined by daily compounded SOFR rates during the interval from (and including) Wednesday, 16 September 2020, through (and not including) Wednesday, 16 December 2020. "
Maybe I'm being silly (and tired) here but these two definitions look different to me. What am I missing?