Is SIX open on Monday 11 October 1999?

Yes

Yes. SIX is open on Monday 11 October 1999, trading from 09:00 to 17:30 GMT+2 (Zurich time).

09:00–17:30 GMT+2

Regular hours

Related markets on 11 Oct 1999

LSE	08:00–16:30
Xetra	09:00–17:30
Euronext Paris	09:00–17:30
NYSE	09:30–16:00
Nasdaq	09:30–16:00
TSX	Canadian Thanksgiving
B3	10:00–17:00
TSE Tokyo	Heakth and Sports Day (through 1999)
HKEX	10:00–16:00
SSE	09:30–15:00