Research
研报3月15日 · Morgan Stanley

China Equity Strategy: US-China Presidential Summit: Scenario Framework & Investment Implications

US-China Summit to Reshape Industries, Not Indexes: Navigating Structural Bets Amid Low Expectations and Positioning

Core Conclusion

The upcoming US-China summit is a high-catalyst structural event, not a systemic market driver. Index-level reaction will be muted due to desensitized markets and significant global investor underweight positioning. The material impact will be a profound divergence in investment logic for strategic sectors—particularly semiconductors, AI/data centers, and healthcare—based on granular policy outcomes regarding export controls and tariffs. Current low expectations and light positioning create tactical upside potential for any positive surprise.

Evidence Chain

Market Desensitization and Positioning Limit Index Moves. Historical market reactions to US-China friction have diminished, reducing downside risk. Following the April 2025 tariff retaliation, MSCI China fell 13.4%, but after the October 2025 rare earth export controls, the decline was only 6%. A summit cancellation is unlikely to trigger a >10% correction. Concurrently, the largest global active mutual funds are 2-6% underweight Chinese equities, capping sell-side pressure and amplifying potential buy-side power should relations stabilize. Investment implication: Macro-focused index trades are less compelling; the opportunity is sector- and stock-specific.

Semiconductor and AI Supply Chain Logic Faces a Binary Split. The investment thesis hinges on the specific nature of any export control relaxation. The core variable is whether the U.S. allows H200 GPU imports only, or also eases restrictions on wafer fab equipment (WFE). Merely permitting H200 imports (Limited Truce scenario) would temporarily reduce localization urgency but sustain domestic AI accelerator demand, benefiting local supply chains like SMIC, Naura, and AMEC. A broader easing of WFE restrictions (Durable Stabilization) would enhance SMIC's advanced-node capacity expansion capability. Conversely, further tightening, including EDA tools, would accelerate domestic substitution, favoring companies like Primarius. Investment implication: A barbell strategy is warranted—simultaneously owning domestic equipment leaders (Naura, AMEC) and foundries that could benefit from eased restrictions (SMIC).

Healthcare and Industrials Exhibit High Geopolitical Sensitivity. For healthcare, geopolitics is the dominant valuation factor, particularly for CRDMOs. WuXi AppTec’s valuation is directly linked to U.S. biosecurity rhetoric; easing tensions would drive a re-rating, while deterioration would shift preference to domestically-focused innovators like Hengrui. In Industrials, the impact is often indirect via customer capex. Auto parts exports to North America have already seen regional restructuring, falling to 16% of China's total parts exports in 2025 from 23% in 2021. Lower tariffs could improve price competitiveness for exporters like Wanhua Chemical (MDI) and battery makers (CATL), though final IRA tax credit eligibility remains a key swing factor for ESS. Investment implication: Balance portfolios between geopolitically sensitive names (WuXi AppTec) and domestic-resilient plays (Hengrui), while monitoring trade-exposed industrials for order flow changes.

Key Divergences and Risks

The sustainability of any "Durable Stabilization" remains a key risk, subject to competing domestic political agendas and non-economic flashpoints like Middle East conflicts. A summit with little substantive progress carries the risk of post-event policy escalation, potentially introducing new restrictions on semiconductor equipment, AI compute costs, or biotech collaboration, which is not fully priced.

Valuation and Trade Implications

Given low expectations and positioning, any positive development (e.g., H200 import approval, tariff reductions) could trigger a targeted tactical rally. Implement a scenario-hedging approach: 1) In Semiconductors/AI, own both local equipment/material champions (Naura, AMEC) and potential beneficiaries of eased controls (SMIC). 2) In Healthcare, balance exposure between domestic innovators (Hengrui) and CRDMOs sensitive to de-escalation (WuXi AppTec). 3) In Industrials, focus on trade-sensitive chemical (Wanhua) and auto parts suppliers.

Appendix Data Summary

Key Metal/ElementCurrent Export Control Status
Light Rare Earths (Ce, La, Nd, Pr)No Restriction
Medium/Heavy Rare Earths (Ho, Er, Tm, Eu, Yb)Restrictions Suspended (as of Oct 2025) for One Year
Gallium, GermaniumControls in Effect
RegionShare of China's Auto Parts Exports (2025)
Asia45%
Europe22%
North America16%
Others17%

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