Post-Listing Stock Price Slump Strategies: Buybacks, M&A, and Going-Private Options

The first half of 2025 has recorded 22 US-listed Chinese companies trading at less than 50% of their IPO offer price within six months of listing, according to data compiled by Wind Information. This persistent post-listing underperformance has shifted the conversation among CFOs and sponsors from IPO pricing mechanics to post-listing value defense. The SEC’s 2024 amendments to Rule 10b-18, which expanded safe harbor volume thresholds for issuers conducting buybacks during a tender offer, have created a more permissive environment for Hong Kong-headquartered companies to deploy capital in defense of their NYSE or Nasdaq listings. At the same time, the HKEX’s 2025 consultation paper on secondary listing eligibility (HKEX CP-2025-03) has opened a potential exit route for companies seeking to delist from the US and re-establish a primary listing in Hong Kong without triggering a full IPO re-registration. The confluence of these regulatory developments — a more accommodating SEC buyback framework and a streamlined HKEX secondary listing pathway — has produced a structured set of options for boards evaluating a depressed US-listed stock.

Share Buyback Programs Under the Revised SEC Rule 10b-18 Safe Harbor

The most immediate tool available to a listed company facing a post-IPO price slump is an open-market share repurchase program. The SEC’s 2024 amendments to Rule 10b-18, effective 1 January 2025, raised the daily volume limit for issuers from 25% to 35% of the average daily trading volume (ADTV) calculated over the four calendar weeks preceding the repurchase. For a company listed on the Nasdaq Global Select Market with an ADTV of 1.2 million shares, the new safe harbor permits up to 420,000 shares per day versus 300,000 under the prior regime. This 40-basis-point increase in allowable daily volume provides materially greater capacity for price support without triggering a SEC investigation into market manipulation.

Safe Harbor Conditions and the 10b5-1 Plan Requirement

To qualify for the Rule 10b-18 safe harbor, an issuer must satisfy four conditions: (1) the repurchase must be made by a single broker or dealer on a single day; (2) the repurchase must not be the opening transaction; (3) the price must not exceed the highest independent bid or the last independent transaction price, whichever is higher; and (4) the volume must not exceed the 35% ADTV threshold. For Hong Kong-incorporated companies with American Depositary Shares (ADS) listed in New York, the SEC has clarified in its 2024 adopting release that the ADTV calculation must be based on the ADS trading volume on the primary US exchange, not the underlying Hong Kong-listed shares if the company maintains a dual listing. This distinction is critical: a company with a primary listing on the HKEX and a secondary listing on the NYSE must use only the NYSE ADTV for Rule 10b-18 compliance, even if the Hong Kong market has significantly higher liquidity.

The 10b5-1 trading plan, codified under SEC Rule 10b5-1(c)(1)(i)(A), provides an additional layer of legal protection. A company that adopts a written plan specifying the amount, price, and timing of repurchases before becoming aware of material non-public information can execute buybacks during a blackout period without risk of insider trading liability. The SEC’s 2022 amendments to Rule 10b5-1, which imposed a 30-day cooling-off period for issuers, remain in effect. For a company that filed its 20-F on 15 March 2025, the earliest a new 10b5-1 plan could commence execution is 14 April 2025. The Hong Kong Stock Exchange’s Listing Rules Chapter 10, which governs share buybacks, do not apply to a company’s US-listed ADS repurchases, but the company’s board must still comply with the Hong Kong Companies Ordinance (Cap. 622) section 257 regarding financial assistance for the purchase of own shares.

M&A as a Price Correction Mechanism: Reverse Mergers and Strategic Acquisitions

A depressed stock price creates an acquisition currency that, while unfavorable for the issuer, can be attractive to a potential merger partner. The 2025 wave of de-SPAC transactions involving Chinese companies — 14 completed deals on the NYSE in Q1 2025 alone, per SPAC Research — has demonstrated that a listed shell with a declining stock price can still serve as a vehicle for a private company to access public markets at a discount. The mechanics are straightforward: the listed company issues shares to the target’s shareholders in exchange for control, and the target’s business becomes the primary operating entity. The listing status is preserved, and the stock price may stabilize as the market re-prices the combined entity.

Reverse Merger Structure and SEC Registration Requirements

A reverse merger under Section 14(f) of the Securities Exchange Act of 1934 requires the listed company to file a Schedule 14(f) with the SEC at least 10 days before the change in control takes effect. For a Hong Kong-incorporated company, the transaction structure must also comply with the HKEX’s reverse takeover rules under Listing Rules Chapter 14. If the target’s assets or profits exceed 100% of the listed company’s corresponding figures, the transaction is classified as a reverse takeover and requires approval from the HKEX as if it were a new listing application. This dual regulatory burden — SEC proxy compliance and HKEX reverse takeover review — adds between 4 and 8 months to the transaction timeline, based on the experience of the 2024 merger between a Nasdaq-listed Chinese education company and a private EdTech firm.

Strategic Acquisition of a Listed Company at a Discount

An alternative to the reverse merger is a direct acquisition of the depressed listed company by a private equity firm or a strategic buyer, followed by a going-private transaction. The 2024 acquisition of a NYSE-listed Chinese fintech company by a consortium led by CITIC Capital, completed at a 42% premium to the 30-day VWAP but still 35% below the IPO price, illustrates the mechanics. The buyer launched a tender offer under SEC Rule 13e-3, which governs going-private transactions, and financed the purchase through a combination of equity and a HKMA-authorized cross-border loan facility. The transaction closed in 7 months from announcement, with the target delisting from the NYSE and re-registering as a private company in the Cayman Islands.

Going-Private Transactions: The 13e-3 Process and HKEX Secondary Listing as an Exit Route

For a company whose stock price has fallen to a level where the cost of maintaining a US listing — including SEC filing fees, Sarbanes-Oxley compliance costs, and director and officer insurance premiums, which averaged USD 2.8 million per year for a small-cap Chinese issuer in 2024 per a Citigroup survey — exceeds the benefits, a going-private transaction becomes the most definitive solution. The SEC’s Rule 13e-3 requires any issuer or affiliate that engages in a transaction that has the effect of causing a class of equity securities to be held by fewer than 300 persons to file a Schedule 13E-3 and provide detailed disclosure to shareholders. The rule applies regardless of whether the transaction is structured as a merger, a tender offer, or a reverse stock split.

The Two-Step Merger Structure and Appraisal Rights

The most common going-private structure for a Hong Kong-incorporated company listed on the NYSE is a two-step merger. First, the acquiring entity — typically a consortium of the founder, a private equity firm, and a management buyout vehicle — launches a tender offer for all outstanding ADSs at a price above the current market but below the IPO price. Second, after acquiring at least 90% of the outstanding shares, the acquirer completes a short-form merger under Cayman Islands Companies Act Section 233(7) to squeeze out the remaining minority shareholders. The minority shareholders retain appraisal rights under Cayman law, which permits them to demand a fair value determination by the Grand Court of the Cayman Islands. In the 2023 case of In re Shanda Games Limited, the Grand Court held that the fair value must reflect the company’s intrinsic value at the time of the merger, not the depressed market price, a precedent that has chilled some low-ball going-private offers.

HKEX Secondary Listing as an Alternative to Full Delisting

The HKEX’s 2025 consultation paper on secondary listing eligibility (HKEX CP-2025-03) proposes a streamlined pathway for companies delisting from a US exchange to transfer their primary listing to Hong Kong without a full IPO process. Under the proposed framework, a company that has been listed on the NYSE or Nasdaq for at least 12 months, has a market capitalization of at least HKD 5 billion at the time of application, and has not been the subject of any SEC enforcement action in the preceding 24 months may apply for a secondary listing on the HKEX Main Board under a new Chapter 19C waiver. The key advantage is that the company does not need to produce a full HKEX prospectus under Listing Rules Chapter 11; instead, it can file a listing document incorporating its most recent SEC filings, subject to a 30-day public comment period. This reduces the legal and accounting costs from an estimated HKD 80 million for a full IPO to approximately HKD 15 million for a secondary listing transfer, based on the HKEX’s own impact assessment in the consultation paper.

Conclusion and Actionable Takeaways

A post-listing stock price slump does not leave a board without options, but each option carries distinct regulatory, cost, and timeline implications that must be evaluated against the company’s specific capital structure and shareholder base.

1. Implement a Rule 10b-18 buyback program within the 35% ADTV safe harbor using a 10b5-1 plan to provide price support without insider trading risk, but only if the company has sufficient cash reserves and the repurchase does not violate Hong Kong Companies Ordinance (Cap. 622) section 257.
2. Evaluate a reverse merger with a private target as a mechanism to re-price the stock, but budget for a 4-8 month dual regulatory review under SEC Section 14(f) and HKEX Chapter 14 reverse takeover rules.
3. Consider a going-private transaction under SEC Rule 13e-3 if the cost of US listing compliance exceeds USD 2.8 million annually, but price the offer at a level that accounts for Cayman Islands appraisal rights under In re Shanda Games Limited (2023).
4. Explore the HKEX secondary listing pathway under the proposed Chapter 19C waiver as a cost-efficient exit from the US market, targeting a transfer cost of approximately HKD 15 million versus HKD 80 million for a full IPO.
5. Engage a Hong Kong-licensed sponsor and a US securities counsel concurrently from the outset of any M&A or going-private evaluation, as the SEC and HKEX timelines run in parallel and misalignment can add 3-6 months of delay.