USD/CHF SARON-SOFR Basis & Post-Merger Swiss Bank Balance-Sheet Plumbing

Switzerland's post-2023 banking landscape—reshaped permanently by the emergency absorption of Credit Suisse Group AG and tightened Too-Big-To-Fail (TBTF) liquidity ordinances enforced by FINMA and the Swiss National Bank—governs every basis point of the USD/CHF SARON-SOFR swap market (2026 SARON Benchmark). With the SNB anchored at its 0.00% policy rate floor against ~3.85% US SOFR, Swiss pension funds (Pensionskassen) and insurers pay nearly 4.00% annualized carry (385 bps rate gap plus -11.5 bps XCCY basis) to hedge US dollar assets back into Swiss francs!

Post-2023 Concentration of Swiss Franc FX Swap Intermediation#

Prior to March 2023, two global Swiss G-SIBs competed head-to-head as primary market-makers in spot, Tom/Next, and 3-month USD/CHF and EUR/CHF swaps. Consolidating two mega-balance sheets into a single surviving Swiss G-SIB—alongside heightened Swiss capital and intraday liquidity ordinances proposing higher foreign-subsidiary equity backing—reduced domestic Swiss interbank netting diversity while elevating the importance of foreign G-SIBs and SNB liquidity facilities.

As examined in our cross-currency swap basis hub and Fed C7 standing swap line OIS + 25 bps analysis, during March 2023 Swiss commercial banks drew $11 billion+ across SNB weekly/daily 7-day USD repo-swap tenders, proving that C7 swap lines immediately cap USD/CHF basis blowouts whenever bilateral credit lines tighten.

Why Hedging US Treasuries into CHF Yields Negative Returns!#

Consider the brutal arithmetic confronting a Zurich pension CIO or Liechtenstein wealth mandate supervised by FINMA or FMA Liechtenstein (executing across institutional desks such as Aglaia Capital, Backed Finance, and Blocksize Capital):

• A 10-year US Treasury note yields 4.15% in USD.
• Rolling a 3-month USD/CHF currency hedge costs 3.85% (SOFR) - 0.00% (SARON) + 0.115% (XCCY basis) = 3.965% annualized!
• Net hedged Swiss franc yield on a 10-year US Treasury = 0.185%—below 10-year Swiss Confederation bonds (Eidgenossen at ~0.48%)!

Consequently, Swiss insurers and Pensionskassen only hedge high-spread US BBB corporate bonds, agency MBS, or private credit (yielding 5.40% to 6.50% USD -> 1.45% to 2.55% hedged CHF), while leaving US equity exposure 50% to 70% unhedged or shifting duration homeward—linking directly to parallel Japanese lifer TONA-SOFR hedging shifts.

Exact USD/CHF Forward-Point & SNB Bill Arbitrage Equations#

Because USD/CHF quotes Swiss francs per 1 US dollar (CHF/USD, currently ~0.8820), lower Swiss SARON rates put USD/CHF forward points deeply negative (the forward dollar trades at a steep discount in CHF terms):

Statutory BVV2 30% Unhedged Currency Ceiling Binding Swiss Pensions#

Why don't Swiss Pensionskassen simply drop currency hedges entirely to save 3.97%/yr? Under Article 55(e) of Switzerland's Occupational Pension Ordinance (BVV 2), unhedged foreign-currency exposure across a Swiss pension fund cannot exceed 30% of total assets without explicit actuarial reserve justification! Because global equities + global real estate + global credit typically represent 52% to 60% of a Swiss pension portfolio, BVV 2 legally compels Swiss pensions to roll CHF 250B+ of FX forward hedges regardless of how negative SARON-SOFR carry becomes.

Cross-Hedging Optimization: Shifting USD Hedges onto EUR/CHF#

When EUR/CHF forward carry (~215 bps/yr) costs roughly 180 bps less than USD/CHF forward carry (~397 bps/yr), Swiss institutional CIOs rotate fixed-income allocations out of US corporate credit into Eurozone investment-grade credit—preserving BVV 2 currency compliance while halving annual forward roll drag across our FX swap basis & dollar funding hub.