Unlock stock picks and a broker-level newsfeed that powers Wall Street. Upgrade Now SES - Delayed Quote • SGD STI Index (^STI) Follow 3,848.22 -17.15 (-0.44%) At close: 5:20:00 PM GMT+8 All News Global markets plunge as 'Black Monday' hits Japan The global rout in stock markets has deepened as the FTSE 100 suffered its worst drop in more than a year.