The index bounced back after a sharp fall of 22.59 points or 1.39 per cent on Monday.
The 10 stocks with the highest trade value today were DELTA, SCB, PTT, KBANK, AOT, KCE, SCGP, BBL, GULF and ADVANC.
Other Asian indices were mixed:
Japan's Nikkei Index closed at 29,839.71, down 660.34 points or 2.17 per cent.
Hong Kong's Hang Seng Index closed at 24,221.54, up 122.40 points or 0.51 per cent.
China and Taiwan indices were closed for Mid-Autumn Festival.
South Korea's KOSPI was closed for Korean Thanksgiving Day.