Stock-Bond Correlation Shift: Is the Traditional
Hedge Broken
According to IMF analysis, the stock and bond returns
have been trending in the same way, mainly on acute selloffs, since early 2020. Rather than
bonds covering the losses of equity, the two asset classes have sometimes declined in tandem,
eliminating the diversification advantages. It seems that the shift started towards the end of
2019 and accelerated with the supply shocks prompted by the pandemic, which created global
inflation. Statistics provided by the IMF indicate the presence of a structural break. In the
pre-pandemic past, the correlation between equities and government bonds rolled negatively in
the majority of cases. In 2020, the trend of the correlations was positive and often had a
positive value.