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Basis Risk Threatens Corporate Rate Hedges

By: Josh Cannington, VP - Interest Rate Derivatives

As of February 2026, U.S. interest rate volatility continues to pressure corporate borrowers managing floating rate debt. Basis risk is increasingly relevant as companies discover that not all SOFR exposures align perfectly with their hedge structures. Small differences in benchmark construction can introduce unexpected cash flow swings, even when a hedge appears properly executed. In an environment where funding costs remain elevated, the effectiveness of interest rate protection depends on structural precision rather than headline policy moves.

Josh Cannington, Vice President of Interest Rate Risk Management at StoneX, works directly with U.S. commercial borrowers structuring derivatives against floating rate debt. His experience advising companies on SOFR based loans and interest rate swaps provides practical insight into how basis risk emerges inside real world hedge programs and why small mismatches can carry meaningful financial consequences.

Key Themes from the Discussion

  • Basis risk arises when a borrower’s loan benchmark differs from the derivative benchmark used for hedging.
  • Term SOFR loans hedged with overnight compounded SOFR swaps can introduce unintended volatility.
  • Even small structural mismatches can weaken hedge certainty and complicate cash flow planning.

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Basis Risk Creates Unexpected Volatility in SOFR Hedges

Basis risk can disrupt corporate interest rate hedges even when borrowers believe they are fully protected. Cannington explains that "basis risk is just that there's a mismatch between what you're paying on your loan and what your hedge is going to return in protect against". Specifically, a company borrowing on term SOFR but hedging with an overnight indexed compounded SOFR swap may face pricing differences that fluctuate over time. Consequently, basis risk introduces noise into hedge performance, potentially distorting cash flow forecasts and reducing the predictability that derivatives are meant to provide.

SOFR Structural Differences Complicate Hedge Certainty

SOFR-based lending has replaced LIBOR, but structural nuances within SOFR itself can amplify basis risk. Cannington notes that "the difference in the nuances between those two SOFR indexes introduces volatility and uncertainty", underscoring how minor calculation differences matter. Although both instruments reference SOFR, the mechanics of term rates versus overnight compounding are not identical. As a result, basis risk can persist throughout the life of the hedge, reinforcing the need for borrowers to align loan documentation and derivative terms before execution.

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--- Written by Lindo Xulu, StoneX TV Journalist

--- Expert: Josh Cannington, Vice President of Interest Rate Risk Management at StoneX

 

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