HKEX Publishes Consultation Paper on Enhancements to Board Lot Framework

 9 January 2026

1. Introduction

On 18 December 2025, Hong Kong Exchanges and Clearing Limited (“HKEX” or the “Exchange”) published a consultation paper on proposed enhancements to the board lot framework in the Hong Kong securities market (the “Consultation Paper”). The initiative, mandated by the HKSAR Government’s Task Force on Enhancing Stock Market Liquidity established in August 2023, aims to streamline trading, clearing and settlement processes while expanding investor participation.

The consultation period will run until 12 March 2026. Stakeholders are invited to submit feedback via HKEX’s online questionnaire, with a consultation conclusions paper tentatively (the “Consultation Conclusions”) scheduled for release by the end of the first half of 2026. This update breaks down the core proposals, their strategic rationale, and potential impacts on market participants.

2. Background: Hong Kong’s Board Lot Framework

A board lot is the standard number of shares required for a single transaction in the securities market, serving as a cornerstone of orderly trading and operational efficiency. Unlike most major global exchanges that adopt a single unified board lot unit, Hong Kong’s current framework is “issuer-led”, allowing each listed company to determine its own board lot size.

This approach has resulted in significant fragmentation. Currently, 44 distinct board lot units are in use, ranging from 10 shares to 100,000 shares. While 2,000 shares is the most common unit which is used by 25% of issuers, the 100-share unit accounts for the largest share of average daily turnover and market capitalisation.

This fragmentation has created multiple challenges:

(i)      Operational inefficiencies: Complexity in trading, clearing and settlement processes;
(ii)      Barriers to retail participation: Extremely high board lot values make certain securities
          unaffordable for small investors, while low board lot values risk “negative value trades”
          where execution costs exceed trade value; and
(iii)      Misalignment with global practices: Divergence from international standards complicates
          cross-market trading, particularly for Southbound Stock Connect investors familiar with
          Mainland China’s unified 100-share board lot.

Additionally, Hong Kong’s market has a higher proportion of low-priced securities (56% of securities traded in the Hong Kong securities market (“Applicable Securities”) trade below HK$1.0) and fixed execution costs, making an immediate shift to a single unified board lot unit impractical due to the risk of widespread negative value trades.

3. Key Enhancements in Detail

3.1  Board Lot Value Floor and Ceiling Guidance

To balance accessibility and risk mitigation, HKEX proposes revising existing guidance and introducing a new ceiling:

(i)      Reduction of board lot value floor guidance: HKEX proposes decreasing the existing board
          lot value floor from HK$2,000 to HK$1,000. This adjustment reduces entry barriers without
          increasing negative value trade risks. The floor applies only when issuers list or adjust board
          lot units. No action is required if stock price movements push values below HK$1,000.
(ii)      Introduction of board lot value ceiling guidance: HKEX proposes to introduce board lot
          value ceiling at HK$50,000, applicable only to issuers using units larger than 100 shares. The
          ceiling encourages issuers to split units to maintain accessibility.

 3.2 Standardisation of board lot units

HKEX proposes reducing the number of permissible board lot units to eight board lot options (i.e., 1, 50, 100, 500, 1,000, 2,000, 5,000, and 10,000 share(s)), covering diverse price bands from HK$0.1 to HK$1,000+ per share. The proposed new board lot framework would result in 657 securities needing to change board lot units, representing approximately 25% of the 2,680 Applicable Securities. The standardised set supports future convergence to a single unit by encouraging gradual adoption of smaller units.

 3.3 Phased Implementation Aligned with the Uncertificated Securities Market (“USM”)

To minimise market disruption, the framework will be rolled out in two phases, coordinated with HKEX’s USM initiative which replaces physical share certificates with electronic records:

Phase One:

(i)      New issuers: Must adopt the eight standardised units and comply with the HK$1,000
          floor/HK$50,000 ceiling upon listing.
(ii)      Existing issuers: No immediate unit standardisation required. Only need to adhere to the
          HK$1,000 floor/HK$50,000 ceiling guidelines.

Phase Two: Existing issuers must adopt one of the standardised units within a specified period after transitioning to USM. This aims at avoiding reprint physical share certificates and optimising issuer resources.

 A detailed implementation timeline may be included in the Consultation Conclusions Paper.

4. Strategic Implications for Market Participants

The proposed enhancements will have distinct impacts on key market stakeholders:

 Approximately 25% of listed issuers will need to revise their board lot units to one of the eight standardised options. In the long term, these reforms will reduce operational complexity and better align with the needs of global and international investors—particularly for “A+H share” issuers seeking consistency across Mainland China and Hong Kong markets. Issuers must continuously monitor their board lot values to ensure compliance with the HK$50,000 ceiling applicable to units exceeding 100 shares.

Investors will benefit from lower entry barriers, expanding access to high-quality securities, reducing concentration risk, and enabling portfolio diversification. Institutional investors will find trading, hedging and settlement processes simplified by standardised units, lowering operational costs and the risk of errors.

Fewer board lot units significantly enhance the operational efficiency of brokers and intermediaries by streamlining system configurations, order entry, and client onboarding processes. Reduced odd lot creation and clearer value guidelines help mitigate operational and settlement risks, strengthening risk management. Additionally, standardised board lots simplify the management of associated products, whose terms are often linked to the underlying securities’ board lot units, eliminating the need for complex adjustments.

5. Conclusion

The consultation period runs until 12 March 2026, and all interested parties—including issuers, brokers, institutional and retail investors, legal and compliance professionals, and investor advocacy groups—are strongly encouraged to submit feedback via the Exchange’s online questionnaire.

Given the transformative nature of these proposals, stakeholders are urged to:

(i)      review the Consultation Paper in full (available on HKEX’s website);
(ii)      provide detailed, data-driven feedback by 12 March 2026 to shape the final rules; and
(iii)      prepare for phased implementation, particularly aligning systems and processes with USM
          transition timelines.

The success of this reform will depend on balancing operational efficiency, investor accessibility and issuer flexibility, ensuring Hong Kong’s securities market remains dynamic, inclusive and aligned with global best practices.

Please contact our Partner Mr. Rodney Teoh for any enquiries or further information.

This news update is for information purposes only. Its content does not constitute legal advice and should not be treated as such. Stevenson, Wong & Co. will not be liable to you in respect of any special, indirect or consequential loss or damage arising from or in connection with any decision made, action or inaction taken in reliance on the information set out herein.

In the dynamic landscape of Hong Kong’s financial markets, the Securities and Futures Commission (“SFC”) serves as the primary regulator. For market participants, including licensed corporations, directors, and investment managers, understanding the breadth of the SFC’s powers is not just a compliance exercise, but a critical component of risk management. For a layman, it is equally important to understand what legal responsibility and implications could entail should you receive any enquiry or request from the SFC, hence protecting your legal position.

Recent enforcement trends and court decisions in late 2025 have reinforced a clear message: the SFC’s investigative powers are extensive, it has little patience for non-compliance, and it does not hesitate to exercise its enforcement toolkit.

Section 183: The Power to Investigate

The cornerstone of the SFC’s authority lies in Section 183 of the Securities and Futures Ordinance (Cap. 571, “SFO”). This section empowers the SFC to compel any person – not just the subject of the investigation – to provide information in the context of an investigation under Section 182 of the SFO.

Unlike in police investigations, where your right to silence is fundamental, the SFO significantly abrogates this right. If you receive a Section 183 notice, you are legally obligated to:

• Produce records and documents;
• Provide written explanations regarding those documents; and
• Attend interviews to answer questions.

Crucially, you cannot refuse to answer on the grounds of self-incrimination. While you can claim privilege to prevent your answers from being used against you in criminal proceedings, those same answers can still be used in civil or disciplinary actions, or to lead investigators to other admissible evidence.

The Trap of Secrecy

A common pitfall for those under investigation is the Section 378 secrecy provision. Upon receiving a notice, you are essentially bound by a strict statutory “gag order”. You must not disclose the existence of the investigation or the notice to anyone, including your colleagues, spouse, or employer, without the SFC’s express consent.

The only major exception is disclosing the information to your lawyer for the purpose of seeking legal advice. Breaching this secrecy is a criminal offence in itself, exposing one to be prosecuted independently of the underlying misconduct.

Recent Case Law: No Excuses for Non-Compliance

The High Court’s judgment in October 2025 in SFC v. oOo Securities (HK) Group Limited [2025] HKCFI 4584 serves as a stark reminder of the consequences of ignoring these obligations.

In this case, a licensed corporation failed to comply with Section 183 notices, citing a change in management and the loss of records during a relocation to Beijing. The Court rejected these defences, holding that:

• Changes of ownership or management do not absolve a corporation of its regulatory duties. The new owners must conduct due diligence and ensure compliance.
• Lost records are not a sufficient excuse unless substantiated with specific proof, especially if the loss occurred after the deadline for production.

The Court ordered the firm to comply and ruled that they were liable for penalties, paving the way for fines. This confirms that the SFC will use Section 185 to seek court orders and punish those who treat regulatory notices lightly.

The Multi-Track Enforcement Regime

Once an investigation concludes, the SFC has ample choices within its arsenal to further pursue against the wrongdoer(s). The SFC operates a dual-track system, allowing it to pursue misconduct through civil, criminal, or disciplinary routes depending on the severity of the case.

1. Disciplinary Proceedings (SFO Part IX): The most common tool against licensed persons. Sanctions range from public reprimands and fines (up to HK$10 million, or 3 times the profit gained, whichever is higher) to the revocation of licenses.
2. Market Misconduct Tribunal (MMT): An independent inquisitorial body that handles market misconduct cases such as insider dealing and price rigging. It can impose various orders, such as “cold shoulder” orders (banning trading) and disqualification orders against directors, but not criminal sanctions such as imprisonment.
3. Criminal Prosecution: For serious offences, the SFC can prosecute summarily or (for more complex cases) refer the case to the Department of Justice for indictment, where jail terms are routinely sought.
4. Civil Remedies (e.g. applications under SFO Sections 213 and 214): Increasingly used to obtain injunctions, freeze assets or seek restoration orders to compensate investors who have suffered losses.

Scrutiny on Asset Managers

The SFC has also sharpened its focus on the asset management sector. Following a circular in October 2024, the regulator has been rigorously inspecting private fund managers for “substandard conduct,” particularly regarding conflicts of interest and risk management.

Common deficiencies identified include using fund assets to finance related entities, prioritizing staff redemptions over clients, and inappropriately valuing assets to hide losses. Managers-In-Charge and Responsible Officers should be aware that they bear primary responsibility for these failures.

Conclusion

Compliance with the SFO is not optional. As the oOo Securities case demonstrates, internal administrative hurdles or staffing changes are no defence against statutory obligations.

If you or your firm receives a Section 183 notice or is subject to an inspection, immediate legal advice is essential to navigate the delicate balance between cooperation, privilege, and secrecy.

At Stevenson, Wong & Co., our regulatory and compliance team has extensive experience advising listed companies, licensed corporations and individuals on SFC investigations, disciplinary proceedings, and compliance strategy. We can assist you in:

• Responding to Section 183 notices and attending SFC interviews;
• Conducting internal investigations and “health checks” on internal controls; and
• Advising and representing you in any MMT or Court proceedings initiated by the SFC.

To discuss how we can assist you, please contact our Ms. Rainbow Ip, Mr. Kenneth Leung or Mr. Ronnie Tse.

This article is for information purposes only. Its content does not constitute legal advice and should not be treated as such. Stevenson, Wong & Co. will not be liable to you in respect of any special, indirect or consequential loss or damage arising from or in connection with any decision made, action or inaction taken in reliance on the information set out herein.