What percentage of STI Index is represented by Oil and Oil related stocks? Which of them would be severely affected by this crisis?

To also add on to Lok Yang Teng answer... STI index is diversified so you should be too concern.. And also... If STI drop further... U can buy low?
#planwithcolin

STI is predominantly focused on Financials, 60.72%, which is both good and bad. Oil is a minority with 1 company (Keppel) which constitutes 3.23% of the index. With such high allocation in Banks, REITS, and Financial Services, the index can be fairly resilient since the companies are well established and developed. However, due to the nature of the industry, it is unlikely to see huge growth for STI.