Understanding Asian Market Indices — Nikkei, Hang Seng, and STI

For traders based in Southeast Asia, understanding regional stock indices is particularly relevant. The Asian equity markets open before European and U.S. markets and set the tone for early global trading. The Nikkei 225, Hang Seng Index, and Straits Times Index (STI) are the three most important Asian indices for ASEAN-based traders to monitor.

Nikkei 225 (Japan)

Japan’s flagship stock index comprising 225 large-cap companies traded on the Tokyo Stock Exchange. Key driver: the USD/JPY exchange rate — a weaker Yen (higher USD/JPY) makes Japanese exports more competitive and tends to boost Nikkei earnings. Bank of Japan monetary policy and global risk sentiment are also highly influential.

Hang Seng Index (Hong Kong)

Hong Kong’s benchmark index with significant exposure to Chinese financial and technology companies, making it a proxy for China’s economic health. Key drivers: Chinese economic data (PMI, GDP, retail sales), China government policy (particularly on technology regulation and the property sector), and global risk appetite.

Straits Times Index — STI (Singapore)

Singapore’s primary stock market index comprising 30 representative companies listed on the Singapore Exchange (SGX). Major components include banks (DBS, OCBC, UOB), REITs, and telecommunications. The STI is generally less volatile than the Nikkei or Hang Seng and is more sensitive to yield-seeking flows.

Market Access on AP

All three indices are accessible as CFDs on the AP platform. Asian market hours (Tokyo: 9am–3:30pm JST; Hong Kong and Singapore: 9am–5:30pm HKT/SGT) provide ideal trading windows for ASEAN-based traders.

Key Takeaway: Asian indices offer excellent trading opportunities during Asian market hours. Understanding what drives each index — currency dynamics for Nikkei, China policy for Hang Seng, and dividend yield for STI — helps you time entries and exits more effectively.