The Singapore Exchange (SGX) operates two equity markets: the Mainboard for established companies and Catalist (formerly SESDAQ), a sponsor-supervised market for smaller or growth-stage companies. Understanding the difference between SGX Mainboard and Catalist is important for Singapore investors evaluating risk profiles of listed stocks and REITs. This is for educational purposes only and does not constitute financial advice.
What Is the SGX Mainboard?
The Mainboard is Singapore’s premier exchange for established companies meeting rigorous MAS-regulated listing requirements. It hosts Singapore’s blue chips — DBS, OCBC, UOB, CapitaLand Integrated Commercial Trust, and major S-REITs. Mainboard companies must meet at least one quantitative criterion: S$30M pre-tax profit over 3 years, OR S$150M market cap with S$300M revenue, OR S$300M operating revenue with 300+ shareholders.
What Is Catalist?
Catalist is SGX’s secondary board for smaller companies that may not meet Mainboard requirements. Instead of SGX acting as regulator, each Catalist-listed company must retain an SGX-approved full sponsor for the duration of its listing. There are no minimum profit, revenue, or market cap requirements — a sponsor endorsement is sufficient. This makes Catalist accessible to growth companies and regional SMEs.
Key Differences: Listing and Governance
Beyond listing requirements, key governance differences exist: Mainboard companies are directly regulated by SGX RegCo. Catalist companies rely on their sponsor for compliance oversight. Mainboard stocks generally have far higher trading volumes and tighter bid-ask spreads. Many Catalist stocks have thin volumes, making large position changes difficult without moving the market price.
REITs and the Mainboard
All Singapore REITs list on the Mainboard due to their size and broad retail investor base. MAS regulations for S-REITs align with Mainboard standards. For S-REIT investors, the Best S-REITs Singapore 2026 guide covers Mainboard-listed REITs with high liquidity and full regulatory transparency.
Should You Invest in Catalist Stocks?
Catalist stocks can offer high growth potential but carry elevated risks: lower liquidity, weaker governance transparency, and higher failure probability. For retirement or income-focused investors, Mainboard S-REITs and dividend stocks are generally more appropriate. Use the Dividend Portfolio Yield Calculator to model income from Mainboard-listed dividend stocks.
Frequently Asked Questions
What is the main difference between SGX Mainboard and Catalist?
The Mainboard requires companies to meet quantitative financial thresholds. Catalist is a sponsor-supervised market with no minimum profit or revenue requirements — more accessible for growth companies but higher risk for investors.
Can REITs list on Catalist?
In practice, all Singapore REITs list on the Mainboard. MAS regulations for S-REITs require broad public distribution, which aligns with Mainboard standards and the broader investor base that comes with it.
How do I know if a stock is on the Mainboard or Catalist?
Check the SGX website (sgx.com) — each company’s listing page specifies the market board. Most brokerage platforms also indicate whether a stock is a Mainboard or Catalist listing.
Is it riskier to invest in Catalist stocks?
Generally yes. Catalist companies are smaller, less liquid, and have weaker track records. Governance relies more on the sponsor than direct SGX oversight. Selling a Catalist stock quickly at a fair price can be difficult.
Can a Catalist company transfer to the Mainboard?
Yes — once a Catalist company meets Mainboard quantitative requirements, it can apply to transfer. This is viewed positively as a sign of growth and maturity.