Mid-market procurement teams have traditionally managed input price risk through fixed-price supplier contracts, inventory buffers, and negotiated pass-through clauses. But as inflation expectations have become more volatile, these tools are often insufficient. The inflation swap curve offers a complementary, market-based mechanism to hedge future cost exposures, yet it remains underused outside large corporates and financial institutions.
This explainer outlines what the inflation swap curve is, how procurement teams can interpret it, and the practical steps and risks involved in using it as a hedging tool.
What is the inflation swap curve?
An inflation swap is a derivative contract in which two parties exchange a fixed rate for a variable rate linked to an inflation index, typically the Consumer Prices Index (CPI) or Retail Prices Index (RPI) in the UK. The fixed leg is the swap rate, which represents the market's expectation of average inflation over the contract's life. The variable leg pays the actual realised inflation over the same period.
The inflation swap curve plots these fixed swap rates across different maturities, from one year out to thirty years or more. It is derived from quoted market prices and reflects the collective view of inflation expectations, adjusted for risk premia and supply-demand dynamics. Unlike a single point forecast, the curve shows how the market expects inflation to evolve over time, which is critical for matching hedge tenors to procurement cycles.
For example, if a procurement team expects to purchase a significant volume of a commodity in two years, they can look at the two-year inflation swap rate to gauge the market's expectation for inflation over that period. If their internal forecast is higher, they might consider hedging to lock in a known cost increase.
Why procurement teams should pay attention
Procurement teams are often focused on spot prices and supplier quotes, but these are short-term views. The inflation swap curve provides a forward-looking, market-based benchmark that can inform budgeting, pricing decisions, and risk management. It is particularly useful for mid-market firms that lack the negotiating power of large multinationals but still face significant input cost volatility.
By using inflation swaps, procurement teams can hedge the inflation component of their input costs without having to renegotiate contracts or hold large inventories. This is especially relevant for categories such as energy, metals, packaging, and logistics, where prices are closely correlated with broader inflation measures.
Moreover, the curve can serve as a communication tool between procurement and finance. It provides a common, transparent reference point for discussing cost risk and the potential benefit of hedging, which can improve internal alignment and speed up decision-making.
How to use the curve in practice
Using the inflation swap curve for hedging involves several steps. First, identify the specific cost exposure. Not all input costs move in line with headline CPI or RPI. For instance, a manufacturer using steel may find that steel prices are more correlated with producer price indices or specific commodity indices. In such cases, a generic inflation swap may not be a perfect hedge, but it can still reduce a portion of the risk.
Second, determine the hedge horizon. The curve provides rates for various maturities, so choose a tenor that matches the procurement cycle. For example, if you have a three-year supply agreement with annual price reviews, a three-year inflation swap could lock in the inflation component of those reviews.
Third, execute the swap through a bank or broker. Mid-market firms typically need to establish an ISDA agreement and post collateral, which can be a barrier. However, some banks offer simpler swap execution for smaller notional amounts, and clearing houses have reduced counterparty risk for standardised contracts.
Fourth, monitor the position. The swap's mark-to-market value will fluctuate as inflation expectations change. This is not a cash flow hedge in the accounting sense unless you apply hedge accounting, which requires documentation and effectiveness testing. Procurement teams should work with finance to ensure the hedge is properly accounted for and that any gains or losses are treated appropriately.
Commercial impact
For a mid-market firm with annual input costs of £50 million, a 1% increase in inflation could add £500,000 to costs. An inflation swap that locks in a fixed rate of, say, 3% when the market expects 4% would save £500,000 over a one-year period, minus the cost of the swap. Over a three-year horizon, the savings could be substantial, but so could the opportunity cost if inflation comes in lower than the fixed rate.
The commercial impact is not just about cost savings. Hedging reduces earnings volatility, which can improve creditworthiness and lower borrowing costs. It also allows procurement teams to make longer-term commitments with suppliers, knowing that the inflation component is covered. This can lead to better supplier relationships and more stable pricing for customers.
However, the cost of the swap itself must be considered. The fixed rate includes a premium for the bank's risk and profit margin. In addition, collateral requirements tie up cash that could be used elsewhere. These costs need to be weighed against the potential benefits.
Risks and unknowns
Inflation swaps are not a perfect hedge. Basis risk arises when the inflation index used in the swap does not match the actual cost driver. For example, if a firm's costs are driven by energy prices, which are more volatile than CPI, the swap may not fully offset the exposure. This is a key limitation.
Liquidity is another concern. The inflation swap market is less liquid than interest rate swaps, especially for longer maturities or less common indices. This can lead to wider bid-ask spreads and higher transaction costs. Mid-market firms may find it difficult to exit or adjust positions without incurring significant costs.
Counterparty risk is also relevant. Even with clearing, there is a residual risk if the clearing house or a major participant fails. This is rare but not impossible, as seen in past financial crises.
Finally, accounting treatment can be complex. Hedge accounting requires rigorous documentation and effectiveness testing. If not applied correctly, the swap's mark-to-market gains or losses could flow through the income statement, adding volatility rather than reducing it.
FY Outlook
The use of inflation swaps by mid-market procurement teams is likely to grow as inflation expectations remain elevated and volatile. The Bank of England's target of 2% is not a guarantee, and supply-side shocks can push inflation higher. As a result, more firms will seek to hedge inflation risk directly.
We expect to see more banks and brokers offering simplified swap products tailored to mid-market clients, with lower minimum notional amounts and streamlined documentation. Technology platforms may also emerge to provide real-time curve data and execution capabilities, making it easier for procurement teams to access these markets.
However, the complexity of these instruments means that procurement teams will need to build internal expertise or work closely with finance and external advisors. The firms that succeed will be those that treat inflation hedging as a strategic activity, not a one-off transaction.
Conclusion
The inflation swap curve is a powerful tool for mid-market procurement teams, but it is not a silver bullet. It requires a clear understanding of the exposure, careful selection of the hedge tenor and index, and robust risk governance. When used appropriately, it can reduce cost uncertainty and improve financial planning. When used poorly, it can introduce new risks and costs.
Procurement leaders should start by educating themselves on the mechanics of inflation swaps and the information contained in the curve. They should then work with finance to assess whether a hedge is appropriate for their specific cost structure. The decision to hedge should be based on a thorough analysis of the costs and benefits, not on a gut feeling about future inflation.
In an environment where input costs are increasingly volatile, the inflation swap curve offers a way to bring more certainty to procurement decisions. It is not a replacement for good supplier management, but it is a valuable addition to the toolkit.
Why It Matters
For mid-market procurement teams, input cost volatility is a major risk to margins and cash flow. The inflation swap curve provides a market-based, forward-looking benchmark that can be used to hedge inflation exposure, potentially reducing earnings volatility and improving financial planning. Understanding this tool is increasingly important as traditional fixed-price contracts become harder to secure.
