S51.SI Sembcorp Marine SES up 10.9% to S$2.55 intraday 16 Feb 2026: Watch volume

The S51.SI stock moved sharply intraday on 16 Feb 2026, rising 10.87% to S$2.55 on a volume surge of 108,233,700 shares. That trading spike makes Sembcorp Marine Ltd (S51.SI) one of the most active names on the Singapore Exchange (SES) today. Price traded between S$2.29 and S$2.59, clearing the 50-day average of S$2.09. We summarise why volume, valuation and short-term technicals matter for traders and longer-term investors.