South Africa’s transition from JIBAR to ZARONIA represents a fundamental shift in how interest rates are referenced, valued and managed.

ZARONIA is an overnight, transaction-based rate replacing the forward-looking JIBAR benchmark. While JIBAR will continue to be calculated until 31 December 2026 for legacy exposures, firms must now adapt systems, models and workflows.

Bloomberg solutions for ZARONIA transition

Bloomberg provides the data, analytics and workflows needed to manage the transition with confidence.

  • Track pricing, liquidity and activity across ZARONIA-linked instruments
  • Monitor adoption trends across derivatives and cash markets
  • Access integrated news, research and regulatory updates
  • Build and validate ZARONIA-based discounting and forward curves
  • Analyze valuation differences between legacy and transitioned instruments
  • Support consistent pricing across fixed income, derivatives and loans
  • Monitor basis risk between JIBAR and ZARONIA
  • Update models and stress testing frameworks
  • Ensure consistency across portfolios and asset classes
  • Identify JIBAR-linked exposure across portfolios
  • Analyze fallback provisions and transition pathways
  • Model valuation and risk impacts across scenarios
  • Align front-to-back workflows across trading, risk and operations
  • Integrate data, analytics and execution processes
  • Improve efficiency during and after transition
  • Track pricing, liquidity and activity across ZARONIA-linked instruments
  • Monitor adoption trends across derivatives and cash markets
  • Access integrated news, research and regulatory updates
  • Build and validate ZARONIA-based discounting and forward curves
  • Analyze valuation differences between legacy and transitioned instruments
  • Support consistent pricing across fixed income, derivatives and loans
  • Monitor basis risk between JIBAR and ZARONIA
  • Update models and stress testing frameworks
  • Ensure consistency across portfolios and asset classes
  • Identify JIBAR-linked exposure across portfolios
  • Analyze fallback provisions and transition pathways
  • Model valuation and risk impacts across scenarios
  • Align front-to-back workflows across trading, risk and operations
  • Integrate data, analytics and execution processes
  • Improve efficiency during and after transition

Bloomberg Resources for ZARONIA Transition

ZARONIA Transition Checklist & FAQ

Prepare for ZARONIA with our checklist covering risk, systems and workflows.

The Rate Reset Webinar

Navigate the rate reset across trading, risk and portfolio workflows.

JIBAR Fallback Announcement

Explore Bloomberg’s role in JIBAR fallback rates and market transition.

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