A-Share Securities Litigation amid Accelerating Regulatory Enforcement: Early Loss Assessment and D&O Claims Handling

China’s increasingly active securities enforcement regime is changing the timetable for A-share securities litigation and directors’ and officers’ liability insurance claims. A listed company may still be at the opening stage of a regulatory investigation when investor claims begin. For the company and its D&O insurers, waiting for a final judgment before assessing potential exposure may therefore no longer reflect the practical pace of these cases.

In this newsletter, we aim to review recent enforcement data from 2024 to 2026, analyse why investor claims are being commenced at an earlier stage, and how an early loss assessment may be carried out when the regulatory findings, investor trading records and court-appointed loss analysis remain incomplete. We will also discuss how such an assessment may assist with reserving, defence strategy and settlement planning.

1. Enforcement remains stringent, with a marked increase in investigations in the first half of 2026

In 2024, the China Securities Regulatory Commission (CSRC) investigated 739 securities and futures violations and issued 592 administrative penalty decisions. In 2025, the number of matters investigated fell modestly to 701, but the number of penalty decisions increased to 661, an increase of 11.66%. The number of responsible persons and entities subject to penalties increased to 1,506, while the number of persons subject to market bans increased to 142, representing year-on-year increases of 13.49% and 20.34% respectively. The trend therefore reflects broader accountability, more enforcement outcomes and greater use of personal and professional sanctions.

The investigation data for 2026 point to a further acceleration at the case-opening stage. Based on our preliminary review of public information on the websites of the CSRC and its local offices, together with statistics reported by several financial media outlets using Wind data, 59 A-share listed companies were placed under investigation during the first half of 2026. This compares with 41 companies during the corresponding period in 2025, an increase of approximately 44%. A further 13 company executives or shareholders were reported as being under investigation, compared with six during the first half of 2025. Most of the company investigations concerned suspected disclosure violations.

The speed of enforcement is also significant. A separate public-source review identified 68 investigation records during the first half of 2026. Of these, 16 had already progressed to an advance notice of administrative penalty or a final penalty decision by 30 June 2026. In two publicly reported cases, the period from the investigation announcement to the penalty decision was approximately 21 and 24 days respectively.

Taken together, the above figures indicate two practical developments: the number of listed companies facing investigations has increased materially, and some investigations are progressing from commencement to penalty within a much shorter period.

2. An administrative penalty is no longer a prerequisite to an investor claim

The acceleration in regulatory investigations is directly relevant to civil exposure because investors no longer need to wait for a final administrative penalty before commencing a securities misrepresentation claim.

The Supreme People’s Court’s 2022 Judicial Interpretation on securities misrepresentation claims removed the former procedural precondition. Article 2 provides that a court may not refuse to accept a claim solely because the alleged misrepresentation has not been established by a regulatory penalty or an effective criminal judgment. Article 8 further provides that, unless rebutted by sufficient contrary evidence, the public announcement of a regulatory investigation into suspected disclosure violations should generally be treated as the revelation date—the date on which the alleged misrepresentation is treated as having been revealed to the market.

An investigation notice does not itself establish that a misrepresentation occurred. Nor does it establish materiality, transaction causation, loss causation or quantum. Those matters remain subject to the regulatory investigation, evidence and expert analysis, and ultimately judicial determination. Nevertheless, publication of an investigation may become an important date in the civil claim timetable. Claimant firms may begin soliciting investor claims, and courts may accept proceedings before the CSRC has reached a final conclusion. 

3. A recent example: investor proceedings at the investigation stage

A recent A-share D&O matter handled by our team illustrates this development. Shortly after the listed company received and disclosed a regulatory investigation notice, investors commenced securities misrepresentation proceedings. At that time:

• no final administrative penalty decision had been issued;
• the alleged misstatements and the relevant period had not been conclusively determined;
• the date of the alleged misstatement remained open to more than one interpretation;
• the potential responsible parties had not been fully identified; and
• complete investor trading records, claimant registration data and a court-appointed loss analysis were not available.

The alleged violation and final liability were therefore far from settled. The company and its insurer nevertheless had to consider whether the potential loss could be material, what reserve range might be appropriate, whether a securities-market or loss expert should be engaged, what causation deductions might be available, and whether defence costs, expert costs and potential settlements could affect the available policy limit.

4. The Purpose of an early loss assessment address

The purpose of an early loss assessment is to establish a potential exposure when information remains incomplete. In practice, it may include:

1. Theoretical market-wide loss: the estimated investment-difference loss assuming that all potentially eligible investors bring claims;
2. Likely civil exposure: the potential liability after considering actual claimant participation, investor-level trading records, materiality, transaction causation, loss causation and the court’s approach to quantum; and
3. Potential insured loss: the amount that may fall within the policy after considering coverage, insured status, the retention, defence costs, allocation and programme limits.

4.1 Scenario analysis for the “three dates and one price”

Loss calculations in Chinese securities misrepresentation cases commonly begin with the framework known as the “three dates and one price”: the date of the alleged misstatement, the revelation or correction date, the benchmark date and the benchmark price.

At the investigation stage, the date of the alleged misstatement is often the most uncertain variable. The matter may concern several annual reports or announcements, or a continuing omission. The period eventually identified by the regulator may differ substantially from the period pleaded by investors.

An early assessment may therefore apply two scenarios:

• a broader scenario covering the full period that may potentially be implicated; and
• a narrower scenario excluding periods or disclosures that appear less closely connected to the alleged misconduct.

The revelation date, benchmark date and benchmark price may also be provisionally derived from public announcements and market data, and then revised once the regulatory decision, court findings or expert analysis becomes available. 

4.2 Cumulative trading volume is not necessarily the same as potentially eligible shares

Where the alleged misstatement period is long and the stock has a high turnover rate, using cumulative trading volume as the number of potentially claimable shares may materially overstate the exposure. The same share may be bought and sold repeatedly by different investors. A single investor may also enter, exit and rebuild a position several times. Cumulative volume measures trading activity; it does not measure the effective holdings remaining after the alleged misstatement was revealed. The longer the relevant period and the higher the turnover, the greater the risk of duplicate counting.

An early assessment should therefore consider an effective holding pool. Relevant adjustments may include:

• excluding shares held before the alleged misstatement date or acquired only after the revelation date;
• separately analysing controlling-shareholder holdings, long-term strategic holdings and other shares with limited practical liquidity;
• adjusting for repeated trading by reference to daily and cumulative turnover; and
• where appropriate, using concepts drawn from the one-trader and two-trader models applied in US securities litigation to distinguish active traders from longer-term holders.

4.3 A fall in the share price is not necessarily caused entirely by the alleged misstatement

Once an initial number of potentially eligible shares and a price differential have been estimated, loss causation must be considered.

Article 31 of the 2022 Judicial Interpretation recognises that liability may be reduced or excluded to the extent that investor losses were caused by market risk, the market’s overreaction to a particular event, changes in the listed company’s internal or external operating environment, or other factors.

A preliminary “3+X” comparison may be useful. This commonly involves comparing the stock against:

• a broad market index;
• a primary industry index;
• a more specific secondary or tertiary industry index; and
• additional indices or comparable companies selected by reference to the company’s business, products or operating environment.

Index comparisons can help identify the proportion of a price movement that may be associated with wider market or industry developments. They should not, however, be treated as an automatic final deduction. The assessment should also consider company-specific operating results, liquidity or funding issues, regulatory and industry developments, other adverse announcements, market overreaction, and the nature and financial significance of the alleged misstatement itself.

Where the data permit, an event-based analysis or expert assessment of abnormal returns and trading volume may provide further support for arguments on materiality and loss causation.

Comment

Against the backdrop of increasingly accelerated regulatory enforcement and securities litigation, early loss assessment can assist D&O insurers in identifying the key variables affecting potential loss, distinguishing theoretical loss, potential civil liability and insured loss, and refining that assessment as regulatory investigations and litigation progress. It can provide an informed basis for considering whether the policy retention and limits may be implicated, setting appropriate reserves for defence costs and potential damages, deciding whether securities-market, accounting or loss experts should be engaged at an early stage, and developing potential defences on materiality, transaction causation, loss causation and proportionate responsibility, as well as settlement strategy. Conducting such an assessment does not amount to an admission of coverage or acceptance of the alleged misconduct or the claimant’s calculation of loss.

In a number of recent A-share D&O matters, we have assisted insurers in carrying out loss assessments at the early investigation stage, combining trading data analysis with coverage assessment, liability defences and claims management. In our experience, the earlier potential exposure and possible liability boundaries are assessed, the better positioned insurers are to make informed decisions on reserving, cost control and settlement negotiations while preserving their rights.