Author Details

Greg Scheuer

Greg Scheuer
Vice President, MSCI Research

Andy Sparks

Andy Sparks
Managing Director, MSCI Research

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Will Interest Rates Surge? Evidence from Options Markets


  • Some investors believe that interest rates are much more likely to increase significantly than decrease over the next year.
  • Markets for interest-rate options provide an alternative view, suggesting that the probabilities of large interest-rate movements — upward or downward — may be more symmetric.
  • Option-market-implied probabilities do not reflect an increased likelihood of large movements in long-term rates.

With long-term interest rates near record lows, conventional wisdom suggests that they can only go up. But the interest-rate option markets in the U.S. dollar, euro and British pound seem to be telling a different story — that rate decreases are also a distinct possibility.

Have Interest Rates Bottomed Out?

Global loosening of monetary policy following the coronavirus outbreak drove yields to historical lows. Yields for the 10-year Treasury decreased to 0.52% in August 2020 from 1.88% in December 2019. Since then, rates have rebounded only modestly.1 Interest rates in other developed markets like the eurozone and U.K. are also near record lows.

Some investors believe that increasing debt levels, fiscal stimulus and economic recovery could lead to significant increases in long-term interest rates in coming years.2 Such investors may decide to decrease their bond exposure or shorten the duration of their bond portfolios.

Is There an Upside for Bonds?

Given the current level of interest rates, bond investors might be concerned about asymmetry in the potential returns of their bond portfolios. We analyzed the possibility of various rate scenarios one year from now using data on interest-rate options. We used MSCI models to extract market-implied probabilities from the prices of swaptions on 10-year-swap rates.3

Please use the interactive exhibit below to see the market-implied probability of changes in the one-year-forward 10-year-swap rate in different markets.4


Little Asymmetry of Market-Implied Rate Moves


Source: MSCI calculations based on Tullett Prebon swaption data.


USD swaption prices imply a probabilityof 17.9% for an increase and 18.8% for a decrease of more than 50 basis points (bps) in the one-year-forward 10-year-swap rate.6 In case of more than a 100-bp change, the implied probabilities are 6.1% and 4.4% for an increase and decrease, respectively. While a large rate increase is perceived as more likely than a large decrease, the difference in implied probabilities is rather small, suggesting that the market does not exclude the possibility of substantial rate decreases. In case of the euro and pound, the implied-swap-rate distributions appear even more symmetric.

Limited Market Concern over Tail Risk

To better understand the market’s view on tail risk, we looked at the implied probability of significant interest-rate movements over the past five years. The current market-implied probability of large interest-rate changes is close to its lowest level of the past five years in each market, suggesting diminished concern about significant changes in long-term interest rates over a one-year horizon.


Implied Probability of Large Rate Changes Is Low by Historical Measures


Source: MSCI calculations are based on Tullett Prebon swaption data for probabilities, and forward swap rates are provided by Tullett Prebon.


Comparing the current probabilities, we find that the likelihood of significant interest-rate movements is lowest in the case of euro rates, while U.S. and U.K. rates have a similar probability. Please use the interactive plot above to see the differences.

Talk of Large Rate Moves May Be Overblown

Uncertainties around the U.S. elections, the pace of economic recovery and the direction of fiscal and monetary policy around the world might lead investors to believe that highly uncertain times may be ahead for rates. And bond-market vigilantes may worry that the uncertainty will translate into large increases in rates. Based on our analysis of interest-rate options, however, we do not see strong evidence that the market assigns a high probability to significant interest-rate increases.


1As of Oct. 28, the yield on 10-year U.S. Treasurys was 0.79%.

2“Investors bet US recovery will force long-term bond yields higher.” Financial Times, Oct. 20, 2020.

3In recent years, swap rates have moved very closely together with Treasury yields. In the case of 10-year rates in the U.S., the average absolute swap spread was 7 bps, and the correlation between swap rates and Treasury yields was 0.94 over the past four years. The choice of using swap rates is motivated by higher liquidity in one-year-expiry swaptions compared to Treasury-futures options with a similar expiry.

4Swaption prices (or implied volatilities) are quoted using the forward swap rate corresponding to the date of option expiration. In the current market environment, the one-year-forward 10-year-swap rate (corresponding to a one-year option) is approximately 13 bps higher than the current 10-year swap.

5Option-implied probabilities are risk-neutral probabilities and may differ from real-world probabilities of events — due, for example, to risk aversion in markets. Nevertheless, option-implied probabilities may be useful for understanding investor sentiment.

6As of Oct. 28, 2020.


Further Reading

US inflation: The market’s implied view

Stress Testing Inflation Scenarios

Hedging Inflation: A Scorecard

Did Bonds Deliver? Leveraging Fixed Income During the COVID Crisis