Emerging-market inflation-linked sovereign bond markets Report Interpretation

Overview

This monthly review compares emerging-market inflation-linked bonds with nominal sovereign bonds across ten markets. JPMorgan finds that linkers again proved relatively defensive during a month of rising yields, but its valuation preference remains selective rather than broad-based.

Core views

EM inflation-linked bonds outperformed nominal sovereign bonds for a second consecutive month. Average EM nominal yields sold off by 16bp, while linker real yields rose only 3bp, producing a 13bp increase in average breakeven inflation. JPMorgan attributes the move to the geopolitical-risk backdrop highlighted in the prior month and an ongoing global sell-off in rates: pressure was more visible in nominal bond markets than in linkers. The EM-average 10-year real yield was 3.98%, nominal yield 8.17%, and breakeven inflation 4.19% as of 1 September; the average excludes Türkiye. The country dispersion was material. Colombia recorded the largest monthly breakeven widening at 63bp to 6.35%, followed by Poland at 24bp to 2.81% and South Africa at 12bp to 4.72%. Türkiye was the clear exception: its breakeven fell 165bp to 30.41%, alongside a 53bp decline in its nominal yield and a 112bp rise in linker real yields. Other reported monthly breakeven changes included Israel +10bp to 1.90%, Brazil +9bp to 6.88%, Korea +1bp to 2.67%, Chile unchanged at 3.32%, Mexico -1bp to 4.75%, and Uruguay -3bp to 4.29%. Colombia is the report's chart-of-the-month. Colombian breakevens had compressed sharply after Abelardo De La Espriella won the first and second election rounds, bottoming near 5.2%. They subsequently rebounded to 6.35%, reversing roughly 53% of that post-election compression. JPMorgan says a noisy announcement concerning the 2027 fiscal budget raised concern over the incoming administration's capacity for fiscal restraint. Clarifications from authorities reduced some uncertainty, but the market is awaiting the supplementary budget bill and further guidance on the intended fiscal stance, both of which JPMorgan views as relevant to the inflation outlook. On strategic valuation, JPMorgan says EM linkers generally screen somewhat rich or around fair relative to nominal bonds on a buy-and-hold basis. Chile and Uruguay are exceptions, where the short ends of the curves look somewhat attractive. For long-term allocations, the report highlights a strategic basket of linker longs in Colombia, 10-year Poland, Mexico below 10 years, and South Africa below 10 years. Its stated rationale combines defensive characteristics, attractive valuations, and liquidity and scalability. Separately, the report remains tactically long 2-year Chile inflation breakevens. The report compares linkers and nominals using CPI-linker internal rates of return rather than relying solely on breakeven inflation. It projects the linker's nominal coupons and maturity principal using monthly inflation forecasts, combines those projected cash flows with the observable market price, and calculates an annualized IRR comparable with a nominal bond's yield to maturity. The analysis uses near-term economist forecasts and then smooths inflation paths toward low, base and high long-run scenarios. A linker is considered worth owning where its IRR is above or in line with the comparable nominal yield in the base case, because it either offers a higher outright IRR or inflation-insurance value if inflation exceeds the baseline; where linker IRRs are below nominal yields, the report views nominal bonds as better value. The publication also frames linkers' defensiveness through yield beta. It regresses weekly changes in 10-year linker real yields on weekly changes in 10-year nominal yields, reporting long-run and six-month rolling measures. A beta below one signals that linkers are less sensitive than nominals to rising yields, though a positive beta still means a long linker position can lose value when rates rise. Country pages supplement valuation with market structure, including bond attributes, inflation-index conventions, foreign ownership, liquidity, and projected versus realized inflation.

Analysis framework

JPMorgan first tracks monthly changes in 10-year nominal yields, linker real yields and implied breakeven inflation across EM markets. It then assesses country developments, compares linker IRRs with matched nominal-bond yields under low, base and high inflation scenarios, and considers rate sensitivity, liquidity, foreign ownership and market conventions when forming relative-value views.

Methodology notes

• OtherYield curve analysis

  CPI-linker IRR versus nominal-bond yield comparison across maturities and inflation scenarios.

  The report converts projected inflation-linked cash flows into annualized linker IRRs and compares them with nominal yield curves to judge relative value at different maturities.

• OtherThree-Factor Interest-Rate Decomposition

  Breakeven inflation calculated as nominal yield minus linker real yield.

  JPMorgan uses the gap between nominal and real linker yields as the market-implied breakeven inflation measure and tracks its monthly changes.

• Quantitative, Factor, and Portfolio TheoryBeta/alpha analysis

  Regression beta of weekly 10-year linker real-yield changes against nominal-yield changes.

  The beta analysis indicates how defensively linkers have historically behaved relative to nominal bonds during rate moves.

• Other

  Low, base and high long-run inflation scenarios.

  Near-term JPMorgan inflation forecasts are extended along smooth paths toward alternative long-run assumptions to generate a range of possible linker IRRs.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Colombia inflation-linked sovereign bonds (COLTES)

  Strategic linker long and the report's main near-term breakeven discussion.

  Strengths

  Breakevens have widened to 6.35%; Colombia is included in the strategic long basket.

  Comparison

  Breakevens had compressed after the election before partially retracing; the report compares linkers with comparable nominal Colombian bonds.

  Risks

  Fiscal-budget uncertainty and the incoming administration's fiscal stance may affect inflation expectations.

• Poland inflation-linked sovereign bonds (POLGB), 10-year

  Strategic linker long.

  Strengths

  The report identifies 10-year Poland as part of its long-term strategic basket.

  Comparison

  Poland's 10-year breakeven rose 24bp to 2.81%; the 10-year linker is compared with a matched nominal bond.

• Mexico inflation-linked sovereign bonds (MUDI), under 10 years

  Strategic linker long.

  Strengths

  The report includes sub-10-year Mexico linkers in its strategic basket.

  Comparison

  Mexico's 10-year breakeven was 4.75%, down 1bp over the month.

• South Africa inflation-linked sovereign bonds (SACPI), under 10 years

  Strategic linker long.

  Strengths

  The report includes sub-10-year South Africa linkers in its strategic basket and cites defensive characteristics, valuation, liquidity and scalability.

  Comparison

  South Africa's 10-year breakeven rose 12bp to 4.72%.

• Chile inflation-linked sovereign bonds (BTUCL), 2-year breakevens

  Tactical long position.

  Strengths

  JPMorgan remains long 2-year Chile breakevens; Chile's short end also screens somewhat attractive on a buy-and-hold basis.

  Comparison

  Chile's 10-year breakeven was unchanged over the month at 3.32%.

• Uruguay inflation-linked sovereign bonds (URUGUA)

  Selective relative-value opportunity at the short end.

  Strengths

  The report finds the short end somewhat attractive versus nominal bonds.

  Comparison

  Uruguay's 10-year breakeven fell 3bp to 4.29% over the month.

Key data

• EM-average 10-year nominal yield change+16bpOne-month change; nominal bonds sold off on average.
• EM-average 10-year linker real-yield change+3bpOne-month change; smaller rise than nominal yields.
• EM-average breakeven inflation change+13bpOne-month increase, calculated from the difference between nominal and real yields.
• Colombia 10-year breakeven inflation6.35%+63bp over one month and roughly 53% reversal of the post-election compression.
• Türkiye 10-year breakeven inflation30.41%-165bp over one month, the key exception among covered markets.
• Poland 10-year breakeven inflation2.81%+24bp over one month.
• South Africa 10-year breakeven inflation4.72%+12bp over one month.

Impact & implications

The report argues that linkers can provide relative defense when rate stress hits nominal bonds, but does not see a broad buy-and-hold valuation case across EM. Its preferred exposures are selected markets and maturities where valuation, inflation protection and market liquidity are jointly supportive.

Risks

• A rising-rate environment can still produce negative absolute returns on long linker positions even when linkers are relatively defensive to nominal bonds.
• In Colombia, uncertainty around the supplementary budget bill and the intended fiscal stance could affect the inflation outlook.

What to watch

• Further Colombian fiscal guidance and developments around the supplementary budget bill.
• The geopolitical-risk backdrop and the ongoing global sell-off in rates.
• Whether EM linker valuations remain rich or fair relative to nominal bonds outside the selected preferred markets and maturities.