Growing concerns over an AI bubble and rising corporate borrowing costs have sparked a major capital rotation into defensive Swiss equities, widening the performance gap between Swiss and euro-area blue chips to its highest level since March 2020. The Swiss Market Index (SMI) gained 4.6% in October, while the Euro Stoxx 50 declined by 3.2%.
Defensive Giants Drive Swiss Outperformance
According to Bloomberg, the 8 percentage point divergence stems from investors reducing risk amid soaring borrowing costs, doubts surrounding the AI trade, and political instability in France and Spain. Three healthcare and food giants—which make up nearly half of the index's total value—drove the entire October gain for the SMI. Drugmaker Roche advanced 12%, competitor Novartis added 6.7%, and consumer staple Nestlé increased by 10%.
Key takeaways from the October European market rotation include:
- Swiss Market Index (SMI) gained 4.6% in October, outperforming the Euro Stoxx 50 (-3.2%) by nearly 8 percentage points.
- Top 20 AI and semiconductor equities lost over $1 trillion between October 12 and October 15.
- Global corporate bond spreads widened to their highest levels since May 2025.
- Bank of America surveys showed tech allocations had previously peaked at their highest mark since August 2020.
Capital Rotates Away From Overcrowded Tech Sector
The surge in Swiss equities directly coincided with a sharp pullback in technology valuations. Data from CNBC indicated that 20 major AI and chip companies lost over $1 trillion in value between October 12 and 15. This correction pushed global corporate bond spreads to their highest point since May 2025, raising concerns over future corporate capital expenditure.
Damian Burkhardt, asset manager at EFG Asset Management, noted that investors are actively fleeing crowded AI positions for defensive Swiss balance sheets. Burkhardt stated that healthcare previously functioned as the funding sector for the AI trade, but that trend is now reversing. Prior to the selloff, a Bank of America global fund manager survey conducted from October 2 to 8 showed fund managers held their largest tech allocation since August 2020. In BofA's European survey, Switzerland ranked joint second at a net 16%, behind Spain's net 28%. This capital movement comes as broader global stocks face pressure from macroeconomic headwinds.
Why It Matters
The aggressive rotation into defensive Swiss equities highlights growing fragility in global markets as elevated borrowing costs begin to crimp speculative tech growth. If the AI valuation unwind deepens, risk assets—including cryptocurrencies—could face secondary liquidity pressures as institutional investors shift capital into defensive corporate havens. Market participants should monitor corporate bond spreads and tech sector earnings to evaluate whether this trend signals a short-term portfolio adjustment or a broader derisking cycle.
