Rate Cuts Do Not Always Translate to Higher Returns for Long-Duration Bond Investors

Misleading Advice on Long-Duration Bonds: A Reevaluation is Needed

The recommendation to invest in long-duration bonds, often touted as a tactical move in anticipation of a rate-cut cycle, has proven to be misleading in practice. This pattern has played out several times in the past, with rate cuts not always translating into gains at the long end of the bond market. Despite this, many advisors continue to fall into the same trap, passing on the same recommendation to investors without proper consideration.

The logic behind investing in long-duration debt funds during a rate-cut cycle appears sound on paper. When the Reserve Bank of India (RBI) cuts the repo rate, bond yields should fall, bond prices should rise, and therefore long-duration debt funds should make money. However, in reality, this simple logic breaks down due to the RBI's control over the short end of the yield curve through the repo rate. Long-duration debt funds, on the other hand, are driven by movements in long-term bond yields, especially the 10-year government security yield.

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As seen in the table above, the RBI's rate cuts have not led to a corresponding decrease in the 10-year government bond yield. In fact, the yield has increased, impacting returns. This disconnect has played out clearly over the last year, with the repo rate moving lower and short-term yields correcting, but the 10-year government bond yield not falling in the way many duration buyers would have expected.

Investors opting for the long end ended up buying long-term debt funds, expecting a decrease in the yield to maturity (YTM) when a rate cut happens. However, in this scenario, the YTM has increased, which is impacting returns. The theoretical logic worked only in the first rate cut in June 2025, but post that, the market did not absorb the cuts anymore.

The rise in yields was mainly due to a shift in RBI policy stance to neutral, reducing expectations of further rate cuts. Additionally, external factors like US tariffs led to foreign portfolio investment (FPI) outflows and rupee depreciation, putting upward pressure on yields. Domestically, concerns over lower Goods and Services Tax (GST) collections and higher-than-expected government borrowing increased supply fears. Together, these factors pushed bond prices down and yields higher despite earlier rate cuts.

Debt investing, especially at the longer end, is not a one-variable game. Long-term yields respond to a much wider set of factors, including inflation expectations, fiscal borrowing, liquidity conditions, global bond yields, and overall market sentiment. Therefore, a repo rate cut alone is not enough to justify a long-duration call. Long-duration debt funds have a role in a portfolio, but they are not a default opportunity every time rates are cut. They are not a simple way to make money just because the RBI has cut rates; they enhance portfolio stability and predictability. They are interest rate-sensitive instruments that require a correct view on the long end of the curve, not just on the repo rate.

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As a result, the next time you hear this recommendation, it is time to reconsider.