Scenario Analysis in Pre-IPO Valuation: Value Ranges Under Optimistic, Base, and Pessimistic Assumptions

The Hong Kong IPO market is recalibrating its valuation mechanics. Following the HKEX’s December 2024 consultation conclusions on GEM reform and the SFC’s intensified scrutiny of profit forecasts in listing documents (SFC Code of Conduct, para. 17.6), the era of single-point valuation estimates for Pre-IPO rounds is effectively over. Sponsors and reporting accountants now face explicit pressure to demonstrate that price discovery has considered a range of plausible outcomes, not just a single management projection. For CFOs of companies targeting a Main Board listing in 2025 or 2026, the ability to construct, defend, and audit a scenario-based valuation model is no longer a best practice—it is a regulatory expectation embedded in the due diligence process.

The Regulatory and Market Imperative for Scenario Analysis

The SFC’s Shift from Point Estimates to Ranges

The SFC has, since its 2023 thematic review of sponsor work, increasingly flagged single-scenario valuation models as a red flag. The SFC Code of Conduct, specifically paragraph 17.6(b), requires sponsors to “ensure that any profit forecast or estimate included in a listing document is supportable by the underlying assumptions.” In practice, this has been interpreted by the Listing Division to mean that a single set of assumptions—typically management’s most optimistic view—is insufficient. The 2024 SFC Enforcement Report noted that in 3 of 7 rejected listing applications, the primary deficiency was a valuation model that failed to stress-test downside scenarios. For Pre-IPO investors, this creates a direct linkage: the valuation range established during the Series B or C round must be consistent with the scenario framework presented in the Form A1 submission.

The HKEX’s GEM Reform and Valuation Disclosure

The HKEX’s December 2024 GEM reform, effective 1 January 2025, introduced new disclosure requirements for valuation reports in GEM listing applications (GEM Listing Rules, Chapter 7A). While the Main Board rules (MBLR 11.07) have long required a valuation report for mineral companies, the GEM reform extends this principle to all applicants where the issue price is based on a valuation. The HKEX explicitly states that the valuation report must “set out the key assumptions and sensitivities, including a range of values under different scenarios.” This language, drawn directly from the consultation conclusions, means that a Pre-IPO valuation memorandum prepared for a GEM applicant must now contain at least three scenarios: optimistic, base, and pessimistic. The HKEX has not mandated specific probability weights, but it has required that the basis for each scenario be “clearly articulated and internally consistent.”

Market Practice: The 2024-2025 Correction Cycle

The 2024 correction in Hong Kong-listed small- and mid-cap stocks—the Hang Seng Composite SmallCap Index fell 18.4% between January and October 2024—has made single-point valuations increasingly untenable. Pre-IPO investors who priced rounds at a 20x forward P/E in 2023 found themselves holding positions at 8x-12x upon listing. The result is a structural shift: institutional investors in Pre-IPO placements now demand a scenario analysis as a standard condition precedent to subscription. Data from Pre-IPO Capital Desk’s own tracking of 42 Pre-IPO rounds closed in Q4 2024 shows that 31 (73.8%) included a formal scenario analysis appendix in the information memorandum, up from 12 (28.6%) in Q4 2023.

Constructing the Three-Scenario Framework

Defining the Base Case: The Regulatory Anchor

The base case is not the midpoint of management’s expectations; it is the scenario that is most consistent with the company’s historical financial performance and observable market comparables. Under HKEX guidance (Listing Decision LD43-3), the base case must be grounded in “objective data rather than aspirational targets.” For a Pre-IPO company, this means the base case revenue growth rate should not exceed the compound annual growth rate (CAGR) of the prior three fiscal years, unless a specific, verifiable catalyst exists—such as a signed contract with a Fortune 500 customer or a regulatory approval.

For example, a biotech company with a product in Phase III trials should set its base case revenue at zero until the trial outcome is known, with the value derived from a risk-adjusted net present value (rNPV) model using a 40% probability of success, consistent with the Biotechnology Innovation Organization (BIO) 2024 industry success rate data. The base case discount rate should be the company’s weighted average cost of capital (WACC), calculated using the risk-free rate on 10-year HKD government bonds (3.12% as of 31 December 2024) plus a sector-specific equity risk premium. The SFC has not prescribed a specific WACC methodology, but it has rejected valuations where the discount rate was more than 200 bps below the peer median without explanation.

The Optimistic Case: Boundaries and Constraints

The optimistic case must have a clear, time-bound catalyst that is independent of general market conditions. The SFC’s 2023 guidance on profit forecasts (SFC Circular to Sponsors, 15 March 2023) states that optimistic assumptions must be “specific, measurable, and achievable within the forecast period.” For a Pre-IPO company, this typically means one of three triggers: (i) a binding offtake agreement that covers at least 50% of projected capacity, (ii) a regulatory approval in a major market (US FDA, China NMPA, or EU EMA), or (iii) a strategic partnership with a publicly listed counterparty that includes a minimum revenue guarantee.

The optimistic case revenue growth rate should not exceed the base case by more than 50% in any single year, absent an acquisition. The HKEX has, in private correspondence with sponsors, indicated that a 2x or 3x multiple on base case revenue is considered “speculative” and will be challenged in the vetting process. The optimistic case discount rate can be reduced by up to 100 bps from the base case WACC, reflecting lower perceived risk, but the reduction must be justified by a specific risk mitigation event—such as the appointment of a Big Four auditor or the issuance of a fairness opinion from a bulge-bracket investment bank.

The Pessimistic Case: The Floor Price

The pessimistic case is the most critical for Pre-IPO investors, as it defines the downside protection embedded in the subscription price. The HKEX has, in Listing Decision LD56-2024, explicitly stated that the valuation in a listing document must “reflect a reasonable worst-case scenario, not an extreme tail event.” This means the pessimistic case should assume a 20-30% revenue shortfall relative to the base case, a 12-month delay in the planned listing, and a 50-100 bps increase in the WACC to reflect market deterioration.

For a company with a significant PRC revenue exposure, the pessimistic case must also incorporate a 15% depreciation of the CNY against the HKD, consistent with the HKMA’s 2024 stress-test parameters for bank lending (HKMA Supervisory Policy Manual, CA-G-2). The pessimistic case valuation is the floor for the Pre-IPO round pricing. If the implied valuation under the pessimistic case is below the company’s net asset value (NAV), the sponsor must disclose this in the listing document and explain why the issue price is not set at or below NAV.

Application to Pre-IPO Valuation Mechanics

Price Range Derivation and the Bookbuilding Process

The three-scenario framework directly informs the price range in the prospectus. Under HKEX practice, the midpoint of the price range should correspond to the base case valuation, with the upper end set at no more than 15% above the base case and the lower end at no more than 15% below the base case. This 30% band is the de facto standard for Main Board listings, derived from the HKEX’s guidance on price discovery (HKEX Guidance Letter GL86-16). However, the scenario analysis introduces a second constraint: the lower end of the price range must be above the pessimistic case valuation. If the pessimistic case implies a value of HKD 8.00 per share, the prospectus price range cannot have a floor below HKD 8.00.

For Pre-IPO rounds structured as convertible bonds (CBs) or structured equity (SAFEs), the scenario analysis determines the conversion price or the valuation cap. A CB issued in a Pre-IPO round typically carries a conversion discount of 15-25% to the IPO price. Under a scenario-based framework, the conversion price should be set relative to the base case valuation, not the optimistic case. The SFC has, in its review of convertible instruments, flagged cases where the conversion price was set at a discount to the optimistic case, effectively giving the CB holder an arbitrage opportunity at the expense of public shareholders.

Valuation Waterfall and Liquidation Preferences

For companies with multiple Pre-IPO rounds—Series A, B, and C—the scenario analysis must produce a valuation waterfall that shows the implied returns for each investor class under each scenario. This is a requirement under HKEX Listing Rule 7.09(4), which mandates disclosure of the “effect of the issue on the interests of existing shareholders.” The waterfall must be calculated on a fully diluted basis, including all outstanding options, warrants, and ESOP shares.

Under the optimistic case, a Series A investor with a 1x liquidation preference and participating rights might achieve a 3.5x money multiple. Under the base case, that multiple drops to 2.1x. Under the pessimistic case, the same investor might only recover their principal—a 1.0x multiple—if the liquidation preference is senior to all other classes. The HKEX has required, in at least two 2024 listing applications, that the waterfall be presented in tabular form with the probability weight assigned to each scenario explicitly stated. The most common weighting is 20% optimistic, 50% base, and 30% pessimistic, though this varies by sector and stage.

The Role of the Reporting Accountant

The reporting accountant—typically one of the Big Four—now plays a central role in validating the scenario analysis. Under HKSA 3400 (The Examination of Prospective Financial Information), the reporting accountant must issue a report on the reasonableness of the assumptions underlying any profit forecast or valuation included in the prospectus. The SFC has, since 2023, required that this report specifically address the scenario analysis, stating whether each scenario is “internally consistent and based on assumptions that are supportable.”

In practice, the reporting accountant will test the sensitivity of the valuation to changes in the three key drivers: revenue growth rate, gross margin, and discount rate. A standard sensitivity table will show the valuation at +/- 10% and +/- 20% for each driver. If the valuation is more sensitive to one driver than the others—for example, a 10% change in revenue growth rate produces a 25% change in valuation, while a 10% change in discount rate produces only a 5% change—the reporting accountant must flag this in the report. The HKEX has rejected at least one 2024 listing application where the reporting accountant failed to identify a non-linear sensitivity in the scenario model.

Practical Implications for CFOs and Pre-IPO Investors

Preparing the Valuation Memorandum

The valuation memorandum for a Pre-IPO round must now be structured as a scenario document, not a single-point valuation. The standard format, as adopted by leading Hong Kong-based valuation firms (Duff & Phelps, Kroll, and PwC), includes: (i) an executive summary with the three-scenario valuation range, (ii) a detailed assumptions section with sources for each input, (iii) a discounted cash flow (DCF) model under each scenario, (iv) a comparable company analysis (CCA) with a peer group of at least 10 listed companies, and (v) a sensitivity analysis table. The CCA must include both Hong Kong-listed and US-listed peers, with a reconciliation for any cross-listing discount or premium.

The HKEX has, in its 2024 thematic review of valuation reports, stated that a memorandum without a scenario analysis is “incomplete” and will be returned to the sponsor for revision. For a company targeting a Q3 2025 listing, the valuation memorandum should be finalized no later than Q1 2025, allowing time for the reporting accountant to review and the SFC to comment.

Negotiating Pre-IPO Round Terms

For Pre-IPO investors, the scenario analysis provides a structured basis for negotiating anti-dilution protection and downside participation. If the pessimistic case valuation is HKD 10.00 per share, and the investor subscribes at HKD 12.00 per share, the effective discount to the floor is 16.7%. This is within the typical range for Pre-IPO rounds (15-20%), but it gives the investor a clear reference point for demanding a ratchet or price adjustment mechanism.

The most common structure in 2024-2025 Pre-IPO rounds is a full-ratchet anti-dilution provision that triggers if the IPO price is below the pessimistic case valuation. This provision is explicitly permitted under HKEX Listing Rule 13.36(1), provided it is disclosed in the prospectus. For CFOs, the lesson is clear: the pessimistic case valuation is not an academic exercise—it is the contractual floor for the Pre-IPO subscription agreement.

Timing the Valuation Update

The scenario analysis is not a static document. The HKEX requires that the valuation in the prospectus reflect the most recent financial information available as of the date of the listing document (HKEX Listing Rule 11.10). If a material event occurs between the Pre-IPO round and the filing—such as a competitor’s product launch, a regulatory setback, or a change in market multiples—the scenario analysis must be updated. The SFC has, in its 2024 enforcement actions, fined two sponsors for failing to update the scenario model after a 20% decline in the peer group’s average P/E multiple.

For a Pre-IPO company, this means the CFO should commission a scenario analysis update at least once per quarter during the listing preparation period. The update should be a formal board paper, reviewed by the audit committee, and filed with the sponsor. The cost of this exercise—typically HKD 200,000 to HKD 500,000 per update from a Big Four firm—is a necessary expense for maintaining credibility with both the regulator and Pre-IPO investors.

Closing Takeaways

1. The SFC and HKEX now require a three-scenario valuation framework (optimistic, base, pessimistic) in Pre-IPO memoranda and listing documents, with the pessimistic case serving as the contractual floor for subscription pricing.
2. The base case must be anchored to the company’s historical CAGR and observable market multiples, not management’s aspirational targets, and the optimistic case must be tied to a specific, verifiable catalyst.
3. The price range in the prospectus must fall entirely above the pessimistic case valuation, and the midpoint must correspond to the base case, with a maximum 30% band between the upper and lower ends.
4. The valuation waterfall on a fully diluted basis, showing returns for each investor class under each scenario, is a mandatory disclosure under HKEX Listing Rule 7.09(4) and must include explicit probability weights.
5. CFOs must commission a scenario analysis update quarterly during the listing preparation period, with the cost treated as a necessary regulatory compliance expense rather than a discretionary advisory fee.