Is Cboe Index Options open on Friday 28 November 2025?

Question

Accepted Answer

Yes, on an irregular schedule. Cboe Index Options trades on Friday 28 November 2025 from 08:30 to 12:15 CST (Chicago time) for Day after Thanksgiving.

NYSE	09:30–13:00
Nasdaq	09:30–13:00
CME Equity	17:00^{−1 previous day}–12:00
Cboe Options	08:30–12:00
IEX	09:30–13:00
TSX	09:30–16:00
B3	10:00–18:00
LSE	08:00–16:30
Xetra	09:00–17:30
Euronext Paris	09:00–17:30