https://www.sifma.org/resources/guides-playbooks/holiday-schedule
SIFMA Policy on Unscheduled Changes in Trading Hours As of April 29, 2019
SIFMA’s Fixed Income Market Response Committee (FI Committee) and Equity Market Response Committee (Equity Committee) have adopted a policy change with respect to unscheduled market closures and the procedures for determining any changes to market hours. The Committees have developed principles and objective decision-making processes that recognize the significant improvements the industry has made with respect to business continuity and the expectations of regulators. These principles also reflect expectations for strong resiliency plans of critical financial market infrastructure and financial institutions.
General:
Market participants should not expect alterations in trading hours if the critical market infrastructures continue to operate either through their primary locations or pursuant to their business continuity arrangements. In addition,
market participants should not expect alterations in trading hours solely because of weather events.
Convening the market response committees to consider market changes is an extraordinary event. SIFMA recognizes and assumes that market participants and critical market infrastructure providers (including Fedwire, FICC, DTCC, exchanges, clearing entities) have the necessary capabilities/procedures to operate, either through access to secondary sites or otherwise, during events that in the past may have necessitated market closures(including, but not limited to, severe weather events in the NYC area) or changes to market hours.
Good Friday: Notwithstanding that Fedwire is open on Good Friday, SIFMA will usually recommend that fixed income markets be closed. Consistent with past practice, SIFMA would recommend that primary dealers provide sufficient staffing to accommodate NY Fed operations. If Good Friday occurs on the day the Employment Report is published, SIFMA will usually recommend an early close of FI markets (usually a noon recommended close).
즉, Good Friday가 4월 첫째주 금요일일 경우, 채권시장은 전체휴장이 아니라 오전장만 열림! (2019년 전에는 안 그랬던 것 같음.)
단, SOFR는 고시 안 됨( https://www.newyorkfed.org/markets/op_policies.html )
https://www.newyorkfed.org/markets/opolicy/operating_policy_260312a
이거 보면,
There will be no publication of the Tri-Party General Collateral Rate (TGCR), the Broad General Collateral Rate (BGCR), the Secured Overnight Financing Rate (SOFR), or the SOFR Averages and Index on Friday, April 3, 2026.
Due to the release of the March Employment Situation report, the Securities Industry and Financial Markets Association (SIFMA) is not recommending a full closure for secondary market trading of U.S. government securities for Good Friday. Nonetheless, repo market participants broadly expect to treat April 3 as a holiday. In particular, settlement of cleared Treasury repo is not scheduled to be available, which would eliminate two of the three market segments used to calculate and differentiate the Treasury repo reference rates. As a result, on Monday, April 6, 2026, the TGCR, BGCR, and SOFR will be published, reflecting same-day settling Treasury repo transactions that settle on Thursday, April 2, 2026 and mature on Monday, April 6. The SOFR Averages and Index published on April 6 will have a value date of April 6.
라고 나옴. 즉, 채권시장은 오전장 열리지만 repo 참가자들은 이날을 휴장으로 생각하고 settlement 이슈가 있으니 SOFR는 고시 안 됨.
그러니까 Good Friday날에는 무조건 SOFR가 고시 안 됨