Main Market is the LSE's primary regulated market for established companies, offering Premium and Standard listing segments under FCA regulation.
Premium vs Standard Listing
| Requirement | Premium | Standard |
|---|---|---|
| Free float | 25% minimum | Varies |
| Min. market cap | £700,000 | As per Prospectus Regulation |
| Trading record | Usually 3 years | None |
| Working capital | 12-month statement | Basic requirements |
| Sponsor | Mandatory for admission & transactions | Not required |
| FTSE UK indices | Eligible | Ineligible |
| Controlling shareholder | Additional protections required | Lighter requirements |
| Target companies | UK established companies | Overseas, investment vehicles, specialists |
Premium Listing Standards
Highest regulatory tier with:
- Sponsor oversight for admission and major transactions
- 25% free float ensuring liquidity
- 3-year trading record (exceptions exist)
- Enhanced corporate governance
- FTSE UK index eligibility
Standard Listing Purpose
EU minimum standards suitable for:
- Overseas companies seeking UK listing
- Investment vehicles and specialist structures
- Companies wanting lighter governance
- Issuers not needing FTSE UK index inclusion
Regulatory Framework
All Main Market companies subject to:
- FCA Listing Rules (Premium or Standard)
- DTR (Disclosure and Transparency Rules)
- MAR (Market Abuse Regulation)
- Prospectus Regulation
Trading
- SETS: Most liquid (FTSE 100, FTSE 250)
- SETSqx: Smaller or less liquid stocks
- Segment codes: XLON (typical), others by characteristics